| Entries |
| Document | Title | Date |
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| 20080245226 | Cutting Tools and Roughened Articles Using Surface Roughening Methods - The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis. The first cutting edge forms a first machined pattern of peaks and valleys on a surface of the article, and the second cutting edge removes at least a portion of the peaks to form roughened fracture surfaces in a second machined pattern defining an arrangement of grooves, corresponding to the valleys, separated by lands, corresponding to the roughened fracture surfaces. The cross section of the grooves is substantially asymmetrical, and each groove may further include a notch. The disclosure also provides cutting tools useful in practicing the surface roughening methods. The disclosure further describes cylindrical articles having interior or exterior surfaces roughened using the methods. The methods, cutting tools and articles have applications including fabrication of cylinder blocks for internal combustion engines. | 10-09-2008 |
| 20080245227 | Cutting Tools and Roughened Articles Using Surface Roughening Methods - The disclosure relates to surface roughening methods in which a cutting tool having a radial cutting blade with first and second cutting edges is fed along a longitudinal axis of an article while rotating the cutting tool about the axis. The first cutting edge forms a first machined pattern of peaks and valleys on a surface of the article, and the second cutting edge removes at least a portion of the peaks to form roughened fracture surfaces in a second machined pattern defining an arrangement of grooves, corresponding to the valleys, separated by lands, corresponding to the roughened fracture surfaces. The first and second walls may include concave regions within the grooves. The disclosure also provides cutting tools useful in practicing the methods, and cylindrical articles having interior or exterior surfaces roughened using the methods. The methods may have applications to fabrication of cylinder blocks for internal combustion engines. | 10-09-2008 |
| 20080264248 | Master cylinder and method of manufacturing the same - An object of the present invention is to provide a master cylinder capable of controlling an increase in an intruding amount of a cup seal while relieving a stress concentration therein to thereby prevent the cup seal from being damaged. Provided is a master cylinder in which a piston is moved in slidable contact with an inner circumference of a cup seal held in a cylinder main body so as to pressurize a brake fluid in a pressure chamber formed of the piston and the cylinder main body, wherein an annular wall configured integrally with the cylinder main body is provided behind the cup seal. Further, a chamfered portion having a curved shape in a cross-section taken along a diameter direction of the cylinder main body is provided between the annular wall and a cylinder wall to which the piston is facing. One end of the chamfered portion is formed continuously so that a tangent thereto is in line with the annular wall, and the other end of the chamfered portion is formed to constitute a flexed portion in combination with the cylinder wall. | 10-30-2008 |
| 20080282879 | Housing with intersecting passages - A housing for use in high-pressure fluid applications, comprising a first passage defining a first axis (P | 11-20-2008 |
| 20080314239 | Piston For A Hydraulic Brake and Method for Production Thereof - A piston for a hydraulic brake configured as a bowl, open on one side, with a longitudinal axis, a wall and a bottom, and is delimited on an open end face by a rim with an axial abutment surface which is movable into abutment on a brake pad. | 12-25-2008 |
| 20090049982 | PLUNGER-TYPED MASTER CYLINDER FOR BRAKE SYSTEM OF VEHICLE - According to the plunger-typed master cylinder of the invention, because deformation of seal cups fitted in the hydraulic pressure chambers with the pistons (primary piston and floating piston) inserted is minimized, that is, the deformation of the inner flange being in contact with pistons does not substantially affect the outer flange being in contact with hydraulic pressure chambers when the master cylinder is in operation, it is possible to prevent deterioration in the performance of passing or stopping oil due to the deformation of seal cups and durability. | 02-26-2009 |
| 20090241768 | Master cylinder - A master cylinder comprises a bottomed cylindrical cylinder body, a piston formed into a bottomed cylindrical shape by the forging method and slidably disposed in the cylinder body, and a spring assembly comprising a spring urging the piston toward an opening side of the cylinder body. A length of a spring of the spring assembly is determined by a retainer which can abut against an inner bottom portion of the piston. An annular groove is formed on the most outer side of the inner bottom portion of the piston by the forging method. | 10-01-2009 |
| 20090272261 | INSERT CASTING STRUCTURE - An insert casting structure includes a cylinder liner made of cast iron and inserted within aluminum alloy through insert casting and having a plurality of projections on an outer circumferential surface of the cylinder liner, wherein when the thickness of a cast iron portion to the base of the projection is set as L1, and the thickness of an integrated piece made up of the cast iron portion and an aluminum alloy portion is set as L2, the thermal conductivity is 35 to 80 W/mK when measured under the condition of L1/L2=0.45. | 11-05-2009 |
| 20090288553 | Fluid power linear drive - A fluid operated linear drive in which on the outer periphery of a centering portion ( | 11-26-2009 |
| 20090301294 | Pressure Medium Connection and Piston-Cylinder Unit Provided Therewith - A pressure medium connection with a pressure connection element and a pressure line connector. The pressure connection element includes a contact surface for contacting the outside surface of a cylinder, a bore, divided into a first bore section of larger diameter and a second bore section of smaller diameter. A shoulder is formed at the transition from the first bore section to the second bore section, and two slots formed in the wall of the pressure connection element. A piston-cylinder unit, such as a hydraulic or pneumatic actuator or a hydropneumatic actuator in motor vehicles, especially for moving vehicle devices, tops, doors, hinged lids, or the like, includes the pressure medium connection. | 12-10-2009 |
| 20100031815 | Hybrid Bearing Cylinder - A hybrid bearing cylinder is formed to include a composite sleeve and a metallic jacket positioned around the composite sleeve. The outer diameter of the composite sleeve is less the inner diameter of the metallic jacket to form a pre-designed gap between the composite sleeve and the metallic jacket The metallic jacket of the hybrid bearing cylinder is adapted to be secured to metallic cylinder end caps by threading, welding, swaging, or other metal attachment methods. | 02-11-2010 |
| 20100083825 | PISTON SUPPORT PORTION FOR A PISTON ASSEMBLY OF A RODLESS CYLINDER - A piston support portion ( | 04-08-2010 |
| 20100170390 | HYDRAULIC CYLINDER - A hydraulic cylinder includes a cylinder having a shaft hole, a piston inserted into the shaft hole so as to have clearance with respect to an inner circumferential surface of the shaft hole, and seal members arranged in annular grooves formed in an inner circumference of the shaft hole to seal an annular gap between the inner circumference of the shaft hole and the piston, wherein in the hydraulic cylinder in which cavitation could occur in a portion of the clearance accompanying motion of the piston, an expansion part obtained by expanding a portion of a sidewall surface of the annular grooves on an inner circumferential edge side outward from an arrangement area of the seal members is provided to make a distance from a location where cavitation occurs to the seal members longer by a space formed by the expansion part. | 07-08-2010 |
| 20100186585 | Piston-and-Cylinder Assembly with a Variable Diametral Clearance, and a Cylinder for Use in a Piston-and-Cylinder Assembly with a Variable Diametral Clearance - A piston-and-cylinder assembly, used in cooling sys terns that may include, for example, refrigerators, air-conditioning systems and the like. In order to solve the problems of volumetric loss (or of cooling capacity) of compressors in general, according to the present invention, one foresees configuring the cylinder ( | 07-29-2010 |
| 20100192767 | METHOD FOR MOUNTING A FASTENER SCREW ON A BRAKE CYLINDER - The invention relates to a method for mounting a fastener screw ( | 08-05-2010 |
| 20100206163 | WEAR RESISTANCE REINFORCING METHOD AND SLIDING STRUCTURE - A wear resistance reinforcing method for a sliding structure formed from at least a pair of components in a sliding relation and provided with a seal member on a sliding face of a first component. A wear-resistant metal-plated film formed from a metal having a predetermined reactivity with the material of the seal member is provided on a sliding surface of a second component. The present invention enables provision of a wear resistance reinforcing method and a sliding structure which improves workability of a film to impart wear resistance properties in addition to low unevenness in wear resistance properties. | 08-19-2010 |
| 20100218672 | Reciprocating Piston Machine - A reciprocating piston machine, in particular a swash ring compressor or swash plate compressor, with pistons which are received so as to be movable in a reciprocating manner in cylinder spaces of a cylinder block with a cylinder head made from a material of lower strength such as aluminum material and which are driven by a driving mechanism which is arranged in a driving mechanism housing part made from a material of higher strength such as steel material. The driving mechanism housing part made from the material of higher strength is fastened to the cylinder block which is made from a material of lower strength such as aluminum material. | 09-02-2010 |
| 20100229716 | CONCENTRIC SLAVE CYLINDER - A concentric slave cylinder for a clutch has a housing | 09-16-2010 |
| 20100282073 | METHOD FOR MANUFACTURING A CRANKCASE OF A PISTON COMPRESSOR, CRANKCASE OBTAINED WITH THE METHOD AND PISTON COMPRESSOR PROVIDED WITH SUCH CRANKCASE - Method for manufacturing a crankcase of a piston compressor, wherein the piston compressor is provided with a crankcase which is provided with recesses for therein receiving cylinders and with at least an inlet opening, wherein from a flat sheet at least one substantially rectangular body blank is manufactured provided with the desired cylinder receiving recesses, wherein the body blank is then angle bent in an angle bending machine for forming a body part having a limited number of folds, wherein at least two substantially flat end walls are manufactured from a flat sheet, wherein thereupon the at least one body part and the at least two end walls are positioned with respect to each other using a positioning tool and are connected with each other with a welding robot for forming the crankcase. Also disclosed is a crankcase obtained with the method, and a piston compressor provided with such a crankcase. | 11-11-2010 |
| 20100313746 | CYLINDER BLOCK AND METHOD FOR THE PRODUCTION OF A CYLINDER BLOCK - A cylinder block has functional surfaces machined by cutting and with at least one cylinder ( | 12-16-2010 |
| 20100326270 | PROCESS FOR ROUGHENING METAL SURFACES - A method of roughening metal surfaces of a workpiece such as a cylinder bore of an internal combustion engine to improve the adhesion of layers thermally sprayed thereon. Uniform grooves are formed in the surface and ridges are arranged between the grooves. The grooves may be formed by a process such as turning, drilling, milling or rolling. The ridges are plastically deformed in order to form undercuts in the grooves, with the degree of plastic deformation of the ridges varying regularly in the longitudinal direction of the grooves. Local deformations are produced in the ridge, and these bring about regular undercuts in the groove. This makes it possible to produce the undercuts in identical dimensions with little effort. Furthermore, since the groove is now not completely constricted by undercuts, it can be filled more effectively with spraying material. | 12-30-2010 |
| 20110023707 | Hydraulic cylinder device - A hydraulic cylinder device includes a cylinder, an axle and two blade units. The cylinder includes a chamber with a cross-sectional shape like a circle overlapping another circle. The axle is inserted through the cylinder. The axle includes two opposite grooves defined therein. Each of blade units includes a blade, a primary roller and a secondary roller. The blade is movably disposed in a related one of the grooves and made with a groove defined in a side close to an internal side of the cylinder. The secondary roller is disposed in the groove. The primary roller is disposed in the groove so that the primary roller is in contact with the secondary roller on one hand and in contact with the cylinder on the other hand. | 02-03-2011 |
| 20110041683 | RODLESS CYLINDER - In a rodless cylinder | 02-24-2011 |
| 20110048226 | MASTER CYLINDER - A master cylinder includes a cylinder body which an operating fluid is introduced from a reservoir, a piston which is slidably fitted in the cylinder body and defines a pressure chamber inside the cylinder body, a supply pathway which is formed in the cylinder body and supplies the operating fluid from the reservoir to the pressure chamber, a bypass pathway which bypasses the supply pathway and allows the reservoir to communicate with the pressure chamber, and a check valve which is installed in the bypass pathway and opens a valve when the pressure inside the pressure chamber is lower than the pressure of the reservoir. | 03-03-2011 |
| 20110094376 | PISTON CYLINDER-TYPE HIGH-PRESSURE GENERATING DEVICE - A cylinder portion is divided into a cylinder main body, and two side cylinders coupled to opposite ends of the cylinder main body. The cylinder main body is configured so that a sample-enclosing capsule in which a sample and a pressure medium are enclosed can be disposed inside the cylinder main body. Pistons for load transmission are disposed at opposite ends of the interior of the cylinder portion; and locking nuts are provided on the outer sides of the positions. The pistons are moved in an axial direction by screwing the locking nuts. With this configuration, a piston cylinder-type high-pressure generating device in which a cylinder having a small outer diameter is formed of a non-magnetic material can generate a high pressure while securing a sample space having a predetermined effective volume. | 04-28-2011 |
| 20110154983 | Cylinder sleeve - The present invention relates to a cylinder sleeve ( | 06-30-2011 |
| 20110162521 | MMC CYLINDER LINER AND METHOD FOR PRODUCING THE SAME - An MMC cylinder liner comprises an inner tubular portion and an outer tubular portion. The inner tubular portion includes a metal matrix composite formed of a compact impregnated with an Al—Si alloy wherein the compact is made of a reinforcing material. The outer tubular portion is formed of the Al—Si alloy. The Si concentration of the Al—Si alloy impregnated into the compact of the inner tubular portion is different from the Si concentration of the Al—Si alloy of the outer tubular portion. | 07-07-2011 |
| 20110232478 | CYLINDER LINER - The present invention provides a cylinder liner excellent in adhesion and heat conductivity with a cylinder block. The cylinder liner 1 of the present invention is formed from cast iron or steel. The cylinder liner 1 is formed with a thermal sprayed coated film 6 at its outer circumferential surface 3 and top surface 4. As the thermal sprayed material, Al, an Al alloy, Fe, an Fe alloy, Zn, a Zn alloy, Cu, a Cu alloy, etc. is used. The cylinder liner 1 is cast around a cylinder block formed from an aluminum alloy or other light alloy, by insert casting, at its outer circumferential surface 3, top surface 4, and bottom surface 5. The cylinder liner 1 is chamfered at the connecting edges of its top surface 4 and inner circumferential surface 7. The thermal sprayed coated film 6 is preferably formed at the top surface 4 part to extend over the chamfering part. | 09-29-2011 |
| 20110239858 | CYLINDER HEAD WITH VALVE SEAT AND METHOD FOR THE PRODUCTION THEREOF - Cylinder head made of cast iron has valve seats provided therein. The valve seats include an annular bore provided in the cast-iron material, a nickel-based intermediate layer which is provided thereon and a contact layer which is provided on said intermediate layer. The contact layer has an air-hardening tool steel, wherein said layers are provided in such a manner that an annularly acting compressive stress is present near the free surface of said contact layer. The invention further includes a method for the production thereof. | 10-06-2011 |
| 20110283881 | CYLINDER BLOCK ASSEMBLY FOR A HYDRAULIC DEVICE - A cylinder block assembly for a hydraulic device. The cylinder block assembly includes a cylinder block with a plurality of piston bores disposed therethrough. Circumferential grooves are disposed around the piston bore such that an elastic bushing may be disposed within the piston bore using a slip fit so that when the elastic material deforms the material deforms into the circumferential groove. By deforming into the circumferential groove the elastic bushing is locked in place and axial movement of the bushing in the bore is prevented. | 11-24-2011 |
| 20110283882 | Multiple-Layered Actuator Wall and Method of Manufacturing the Same - A linear actuator includes an actuator wall, and the actuator wall includes a first wall layer having an inner surface that defines an actuator chamber. The actuator chamber is configured to accommodate an actuator fluid. The first wall layer is also subjected to a pre-load such that the first wall layer is compressively pre-stressed. The actuator wall further includes a second wall layer disposed outwardly from the first wall layer. The linear actuator further includes a piston supported within the actuator chamber, and the piston is movable in response to the actuator fluid entering and exiting the actuator chamber. | 11-24-2011 |
| 20110303084 | GAS CYLINDER ACTUATOR WITH OVERTRAVEL SAFETY DEVICE - A gas cylinder actuator with overtravel safety device, comprising a tubular jacket which is closed by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for the passage of a stem with a piston; the gas cylinder actuator has, on the inner face of the jacket, in the compression chamber, a region in low relief designed to interrupt the seal provided by a gasket of the piston or the head portion, which act against the inner face. | 12-15-2011 |
| 20110303085 | Piston-Cylinder Assembly Having Integrated Measuring Device - The invention relates to a piston-cylinder assembly, in particular for pneumatic, hydraulic or mechatronic systems, having a cylinder housing ( | 12-15-2011 |
| 20120090461 | COMPRESSOR - There is provided a compressor including a hermetic container storing therein a lubricant, an electric element, and a compression element driven by the electric element, the compression element including a crankshaft, a bearing portion, a cylinder block, a piston, and a joining portion, wherein a cylinder head is tightened and fixed together with a valve component by a bolt to an opening surface side of a compression chamber formed by a cylinder bore and the piston, and a screw hole portion formed in the opening surface side, for fixing the bolt includes a counterbore extending to the vicinity of a boundary between the cylindrical portion and the tapered portion. | 04-19-2012 |
| 20120090462 | NITRATABLE STEEL PISTON RINGS AND STEEL CYLINDRICAL SLEEVES, AND CASTING METHOD FOR THE PRODUCTION THEREOF - A steel piston ring and a steel cylinder liner are described which comprise as the main body a steel composition which has good nitridability. The steel composition consists of the following elements: 0-0.5 weight % B, 0.5-1.2 weight % C, 4.0-20.0 weight % Cr, 0-2.0 weight % Cu, 45.30-91.25 weight % Fe, 0.1-3.0 weight % Mn, 0.1-3.0 weight % Mo, 0-0.05 weight % Nb, 2.0-12.0 weight % Ni, 0-0.1 weight % P, 0-0.05 weight % Pb, 0-0.05 weight % S, 2.0-10.0 weight % Si, 0-0.05 weight % Sn, 0.05-2.0 weight % V, 0-0.2 weight % Ti and 0-0.5 weight % W. The steel piston ring and the steel cylinder liner can be manufactured in a casting process using the machinery and technology employed for the manufacture of cast iron parts. | 04-19-2012 |
| 20120137875 | CYLINDER ASSEMBLY FOR PNEUMATIC MOTOR AND PNEUMATIC MOTOR COMPRISING THE SAME - A pneumatic motor of the present invention includes a cylinder assembly and a rotor. The cylinder assembly defines a chamber for receiving the rotor, two air passages, and one or several apertures. The air passages are prepared for pressurized air to be input for driving the rotor to rotate in two different rotation conditions. The cylinder assembly has an adjustment mechanism for blocking all of the apertures. Thus, once air is input via one of the air passages, the air has to be released from the other air passage. Therefore, a specific power stage is provided with the pneumatic motor. | 06-07-2012 |
| 20120152112 | FUEL SUPPLY PUMP AND MANUFACTURING METHOD OF HOUSING OF THE SAME - A cylinder body includes a cylinder hole and a discharge flow passage. The cylinder hole receives a plunger and forms a pressurizing chamber in one axial end portion thereof. The discharge flow passage is connected to the pressurizing chamber and is adapted to guide and discharge the pressurized fuel from the pressurizing chamber to an outside of the housing. A connection opening of the discharge flow passage is formed in a hole wall of the cylinder hole. A pressure is applied to a predetermined prestressing subject area in the hole wall of the cylinder hole and a passage wall of the discharge flow passage through autofrettage to generate a residual compression stress in the predetermined prestressing subject area and thereby to form a prestressed area of a final product. The prestressing subject area includes an inner peripheral edge of the connection opening. | 06-21-2012 |
| 20120247321 | PISTON COMPRESSOR - A piston compressor with one or more pistons ( | 10-04-2012 |
| 20120247322 | Method of Remanufacturing Hydraulic Cylinders, And Remanufactured Hydraulic Cylinders - A method of remanufacturing a cylinder assembly that has a shaft body and a slidable cylinder assembly extending thereover. A plurality of seals extend between the shaft body and the slidable cylinder to provide a plurality of fluid-tight chambers. The shaft body has opposing ends with a first end cap positioned at a first end and a second end cap positioned at a second end thereof. The shaft body is permanently coupled to the end caps to preclude removal thereof. The method requires cutting the shaft body to remove the end caps, and subsequent reattachment. | 10-04-2012 |
| 20120304851 | HYDRAULIC CYLINDER WITH AN O-RING SEAL OF VARIABLE GEOMETRY - A new system of hydraulic and piston cylinders for the lifting of large loads manufactured based on commercial tubes, in which the cylinder tube ( | 12-06-2012 |
| 20120312159 | MACHINE COMPONENT WITH A CAVITATION RESISTANT COVERING - A machine component includes a body made of cast iron. The body may include a surface configured to be subject to cavitation-induced erosion. The component may also include a hardened covering on the surface of the body. The covering may have a crystal structure including martensite and between about 5% to about 40% austenite. | 12-13-2012 |
| 20120312160 | Fluid Pump Having Liquid Reservoir and Modified Pressure Relief Slot - A pump, which generally includes a pump housing and a pump piston. The pump housing defines a central longitudinal bore, a transverse bore communicating with the central bore for conveying a liquid through the pump housing, a liquid reservoir communicating with the central bore and the transverse bore for retaining an amount of the liquid conveyed through the transverse bore and a pressure relief slot extending from the transverse bore to the liquid reservoir. The pump piston is axially and rotatably slidable within the central longitudinal bore for pumping the liquid through the transverse bore. | 12-13-2012 |
| 20130008305 | CYLINDER DEVICE - The present invention relates to the provision of a cylinder apparatus that is able to maintain a superior join condition, and has: a cylindrical cylinder ( | 01-10-2013 |
| 20130014640 | Laser peened fluid end for a high pressure pumpAANM Small; Tony M.AACI Fort WorthAAST TXAACO USAAGP Small; Tony M. Fort Worth TX USAANM Perkins; Daniel M.AACI HoustonAAST TXAACO USAAGP Perkins; Daniel M. Houston TX USAANM Frank; Danny C.AACI BedfordAAST TXAACO USAAGP Frank; Danny C. Bedford TX USAANM Capps; David L.AACI CrowleyAAST TXAACO USAAGP Capps; David L. Crowley TX US - A fluid end for a high pressure pump with improved resistance to fatigue failure is disclosed. Interior surfaces that are prone to fatigue failure are laser peened to resist cracking and other types of failures. A work holder for supporting the fluid end as it is peened is also disclosed. | 01-17-2013 |
| 20130081536 | PUMP PISTON ASSEMBLY WITH ACOUSTIC DAMPENING DEVICE - A pump piston assembly has a pump cylinder, at least one hollow piston slidably mounted for reciprocating motion in the pump cylinder, the piston having an inner surface of a first diameter and an outer surface of a second diameter, and a liner sleeve of a different material from the piston mounted on the inner or outer surface of the piston with a close or friction fit to the diameter of the piston surface on which it is mounted. The liner sleeve is of an acoustic dampening material which has a lower acoustic frequency than the piston material and is configured to absorb harmonic acoustic vibrations resulting from reciprocation of the piston in the cylinder. | 04-04-2013 |
| 20130087040 | CYLINDER HOUSING, IN PARTICULAR PUMP CYLINDER HOUSING - A pump cylinder housing has a hollow cylinder and an end-side cover part, a threaded sleeve may be fixed on the outside of the hollow cylinder, at least three radially outward projections are connected to and distributed on the cover part periphery to the cover part and at least partly pass through recesses of the threaded sleeve. A union nut may be screwed onto the threaded sleeve so that the projections project radially out of the threaded sleeve and bear on an end side of the union nut. The cylinder housing may be assembled by in a simple manner so that the cylinder housing and the cover part may be connected to one another in an exactly colinear and centred manner and thereby may be reliably sealed. The cylinder cover may thereby be positioned in an infinite radial position on the cylinder. | 04-11-2013 |
| 20130092022 | CYLINDER APPARATUS - A cup seal includes a base portion disposed on a cylinder bore opening portion side of a seal groove, an inner circumferential lip portion extended from an inner circumferential side of the base portion toward a cylinder bore bottom portion and having an inner circumferential surface slidably abutting against an outer circumferential surface of a piston (plunger), and an outer circumferential lip portion extended from an outer circumferential side of the base portion toward the cylinder bore bottom portion and having an outer circumferential surface abutting against a seal groove bottom surface. The cup seal also includes an abutment surface and contact pressure adjustment surface. | 04-18-2013 |
| 20130104732 | FASTENING METHOD AND CYLINDER DEVICE | 05-02-2013 |
| 20130152781 | METHOD FOR MILLING A CYLINDER HEAD AND CYLINDER HEAD - A method for the machine-milling of intake and/or exhaust ducts formed in a cylinder head includes working off the inner wall surfaces of the intake and/or exhaust ducts at least in part, preferably completely, with a multi-axis, preferably five-axis, CNC-controlled cherry head in a stabbing movement. Grooves are thus formed in the inner wall surfaces that extend primarily in the flow direction of the ducts. | 06-20-2013 |
| 20130167715 | Methods and Systems for Managing a Clearance Gap in a Piston Engine - A piston engine may include a piston and cylinder assembly. A piston assembly may be configured to translate in a cylinder liner, which may form a bore in the cylinder. The cylinder liner may be deformable, and deformations of the cylinder liner may affect the clearance gap between the piston assembly and the cylinder. A liner fluid may be supplied to the cylinder liner to create a pressure differential across the liner, and a resulting deformation. The liner fluid may be used to provide cooling as well as liner deformation to control the clearance gap. A cylinder may include one or more fluid passages configured to provide heating, cooling, or both. A cylinder may include one or more localized heat sources such as, for example, electric resistance heaters or heating fluid passages. | 07-04-2013 |
| 20130167716 | MASTER CYLINDER DEVICE - A master cylinder device including: a housing whose front side is closed and which has a separation wall for separating the inside of the housing into a front side chamber and a rear side chamber; a pressurizing piston disposed in the front side chamber so as to define a pressurizing chamber for pressurizing the brake fluid and an input chamber into which a brake fluid from a high pressure source is introduced; an input piston disposed in the rear side chamber and moving forward by an operation force; and a transmission rod which is through the separation wall, whose proximal end portion is fixed in one of the pressurizing and input pistons, and whose distal end portion is apart from the other of the pressurizing and input pistons in a state of no forward movement. | 07-04-2013 |
| 20130180398 | CYLINDER DEVICE FOR A PNEUMATIC TOOL - A cylinder device is retained in a retaining space of a pneumatic tool, and includes first and second end components, a surrounding wall coupled between the first and second end components and dividing the retaining space into an annular space part and an inner space part, and a pair of main dividing members dividing the annular space part into an intake space region and an discharge space region. Compressed air introduced into the intake space region enters the inner space part via an inlet hole formed in the surrounding wall to drive rotation of a rotor disposed in the inner space part, and is advanced into the discharge space region via outlet holes formed in the surrounding wall to be expelled to the external environment. | 07-18-2013 |
| 20130192457 | CYLINDER APPARATUS - Provided is a cylinder apparatus capable of obtaining optimum valve characteristics. The cylinder apparatus has an annular valve member provided with at least a part of flow paths and having a through-bore, a pin member inserted through the through-bore of the valve member, and an annular disk valve having the pin member inserted therethrough and movable at both inner and outer peripheries thereof selectively away from and into contact with one end surface of the valve member to open and close the flow paths, respectively. The valve member has a projecting portion around the through-bore on the one end surface. The projecting portion is locally provided with circumferentially spaced grooves. The disk valve has small-diameter portions extending toward the grooves from the inner periphery thereof. The small-diameter portions are slidable relative to the pin member. | 08-01-2013 |
| 20130199366 | CYLINDER DEVICE WITH FORCE MULTIPLIER - An output rod ( | 08-08-2013 |
| 20130220113 | CYLINDER FORMED WITH UNEVEN PATTERN ON SURFACE OF INNER WALL - The present disclosure relates to a cylinder having an inner wall formed with fine uneven patterns to improve durability. The fine uneven patterns according to the present disclosure increases oil film pressure between a piston ring and an inner wall of the cylinder, and smoothly supplies engine oil to where the engine oil is insufficient, thereby reducing abrasion between the piston ring and the inner wall of the cylinder. | 08-29-2013 |
| 20130228069 | GAS CYLINDER ACTUATOR WITH OVERTRAVEL SAFETY DEVICE - A gas cylinder actuator with overtravel safety device, comprising a tubular jacket for gas containment, which is closed hermetically at one end by a bottom provided with a gas filling valve and at the opposite end by a head portion, which is provided with a hole for the passage of a stem with a piston, the jacket, the bottom and the piston forming the gas expansion and compression chamber. | 09-05-2013 |
| 20130228070 | HYDRAULIC CYLINDER WITH VARIABLE CUSHION ORIFICE - A hydraulic cylinder having a variable cushion orifice is provided, which can simply adjust the size of a cushion orifice hole, which is provided to mitigate impact generated at a stroke end of a cylinder rod, from the outside of the hydraulic cylinder. The hydraulic cylinder having a variable cushion orifice includes a first cushion orifice formed on a head cover, a second cushion orifice communicating with the first cushion orifice and having an inlet formed on an outer side surface of the head cover, a third cushion orifice making the second cushion orifice communicate with a hydraulic flow path formed on the head cover, and a plug for a variable orifice replaceably engaged with the second cushion orifice and having an orifice formed to adjust an amount of hydraulic fluid discharged to the hydraulic flow path through the first cushion orifice at the stroke end of the cylinder rod. | 09-05-2013 |
| 20130247752 | CYLINDER MEMBER OF AUTOMATIC TRANSMISSION AND MANUFACTURING METHOD THEREOF - A cylinder member of an automatic transmission that includes an outer peripheral introducing portion having a shape that is able to be formed by ironing without forming and trimming of a flange portion which was conventionally required for forming an outer peripheral introducing portion. Therefore, steps required for forming the flange portion are omitted, and the number of steps for manufacturing the cylinder member is reduced. Without using a large-scale press machine such as a progressive press and a transfer press, the cylinder member is manufactured by a smaller-sized press machine, thereby reducing equipment investment required for manufacturing the cylinder member. | 09-26-2013 |
| 20130247753 | Fluid Cylinder Assembly Having Automatic Stroke Shutoff - The fluid cylinder assembly concept includes a valve that automatically diverts fluid between pressure chambers when a plunger nears its end of stroke to inhibit the plunger from overtravel. | 09-26-2013 |
| 20130284017 | TRANSMISSION PISTON WITH RETAINED RELEASE SPRING - A piston assembly for a transmission includes a piston housing and a release spring. The piston housing has a bore including a first radial wall and a circumferential wall. The release spring has a first radially outwardly extending finger portion, a second radially outwardly extending finger portion, and a conical portion. The first finger portion is for pressing engagement with the first radial wall and the second finger portion is for pressing engagement with the circumferential wall. The conical portion is disposed radially inward of the first and second finger portions. In an example embodiment, the piston housing includes a second radial wall for pressing against a clutch pack for the transmission. In some example embodiments, the piston assembly includes a seal plate, fixed to the piston housing and arranged to retain at least one piston seal. | 10-31-2013 |
| 20130305916 | PNEUMATIC CYLINDER WITH PRESSURE MODERATOR - A fluid cylinder assembly including a cylinder, a rod assembly, and a valve assembly. The rod assembly includes a rod having a first end and a second end and a piston connected to the first end of the rod. The piston is slidingly positioned in the cylinder. The second end of the rod extending from the cylinder. The valve assembly is in fluid communication with the cylinder. The valve assembly is configured to moderate pressure within the cylinder when an external force is applied against the second end of the rod. | 11-21-2013 |
| 20130312599 | MULTI-CAPACITY CYLINDER - A multi-capacity hydraulic cylinder includes a hollow cylinder closed by a cylinder head, an annular piston moveable within the hollow cylinder to divide the interior of hollow cylinder into a first chamber and a second chamber, a hollow piston rod coupled to the piston and aligned with an opening in the piston, and a secondary rod moveable within the hollow piston rod to define a third chamber in the hollow piston rod, where the third chamber has a cross-sectional area that is less than the cross-sectional area of the first chamber. | 11-28-2013 |
| 20140020554 | Air Pump Cylinder - An air pump cylinder has a mounting bracket, a housing, a cover and an O-ring. The mounting bracket is made of metal and includes a rear wall and opposite sidewalls. The rear wall has a rear projection extending therefrom. Each sidewall has a side projection extending therefrom. The housing is made of metal and is clamped between the sidewalls of the mounting bracket. The cover is hermetically attached to the housing and includes a cap. The cap has a plurality of upper projections extending from an annular sidewall thereof and secured to the projections of the mounting bracket by bolts. The O-ring is compressed between the cover and the housing. Therefore, the structure of the air pump cylinder is simplified and manufacturing time and cost are reduced. Besides, the housing can be firmly held in the mounting bracket, thereby providing improved assembly stability. | 01-23-2014 |
| 20140020555 | PISTON ASSEMBLY FOR ALTERNATIVE COMPRESSOR - The present invention refers to a piston/cylinder assembly for alternative compressor, wherein the piston performs a reciprocating movement inside the cylinder, wherein piston surface ( | 01-23-2014 |
| 20140033912 | CRANKCASE OF A PISTON COMPRESSOR AND PISTON COMPRESSOR PROVIDED WITH SUCH CRANKCASE - A crankcase of a piston compressor including two body parts each comprising a rectangular piece of sheet metal that is angle bent along a limited number of folds and each having two opposite end edges and two longitudinal edges, the body parts including cylinder receiving recesses for receiving cylinders; two substantially flat end walls from a flat sheet; and a cylinder support part comprising a substantially rectangular piece of sheet metal that is angle bent along a limited number, preferably one or two folds, so as to be saddle-shaped and including cylinder receiving recesses; wherein the end walls and the two body parts are connected to each other by welds so as to form the crankcase. Also disclosed is a piston compressor provided with such a crankcase. | 02-06-2014 |
| 20140033913 | CASTING MOLD SET - The mold set is constructed with a cope, a drag, cheeks, and a core. In a case where the mold set is closed before molten metal is fed, a first clearance between a first mold (cope) that is located above a casting shape forming part of the core and the casting shape forming part is smaller than a second clearance between an upper surface of a core print of the core and a second mold (cheek) that is opposed to the upper surface. | 02-06-2014 |
| 20140069272 | CYLINDER LINER HAVING THREE-TIERED SURFACE FINISH - A cylinder assembly for use in an internal combustion engine is disclosed, The cylinder assembly may include a cylinder, a piston disposed within the cylinder, a plurality of piston rings encircling the piston, and a cylinder liner fitted around the piston in a cylindrical space in which the piston reciprocates. The piston may reciprocate within the cylinder along a longitudinal direction of the cylinder. The cylinder liner may include an upper section, a middle section, and a lower section. The upper section may be composed of a first texture; the middle section may be composed of a second texture that is rougher than the first texture; and the lower section may be composed of a third texture that is smoother than the first texture and the second texture. | 03-13-2014 |
| 20140123849 | CYLINDER HEAD GASKET - A cylinder head gasket includes two main members on two sides, and middle members sandwiched therebetween. The middle members are composed of a first middle member and a second middle member that is separated and distinct therefrom. The first middle member is a metal plate that has cylinder hole rim portions encircling cylinder holes to a particular width, with beads surrounding the cylinder holes being formed in the cylinder hole rim portions. The metal plate either forms separated items, one at each cylinder hole, or else forms an integrated item connected between the cylinder holes. The second middle member is a metal plate that is disposed on the outside of the first middle member and has oil holes and bolt holes. The thickness of the first middle member is greater than that of the second middle member. | 05-08-2014 |
| 20140157981 | FLUID PRESSURE CYLINDER - A piston is provided displaceably in the interior of a cylinder tube that constitutes a fluid pressure cylinder, and a piston cover made from an elastic material is disposed so as to cover one end surface of the piston. The piston cover comprises a main body portion confronting a head cover of the cylinder tube, a guide portion covering an outer circumferential surface of the piston and disposed in sliding contact with an inner circumferential surface of a cylinder hole, and a hook portion folded toward an inner circumferential side with respect to the guide portion. Upon displacement of the piston toward the head cover, shocks are absorbed by abutment of the main body portion against the head cover. When the piston is displaced along the cylinder tube, the guide portion serves to guide the piston in the axial direction by sliding contact with the cylinder hole. | 06-12-2014 |
| 20140216244 | Cylinder Assembly - A rocking cylinder assembly comprising a cylinder, rotatable about a rocking axis between first and second end positions, having a cylinder bore terminating at a cylinder bearing surface and a cylinder aperture, and a bearing component having a component bore terminating at a component bearing surface and a component aperture. The ratio of the area of the second one of the apertures to the square of the maximum extent of the second one of the apertures in a direction perpendicular to the rocking axis and perpendicular to a second axis for fluid flow is greater than the ratio of the area of the first one of the apertures to the square of the maximum extent of the first one of the apertures in a direction perpendicular to the rocking axis and perpendicular to a first axis for fluid flow. | 08-07-2014 |
| 20140245882 | CYLINDER-PISTON UNIT WITH SHORT CANNULA - A cylinder-piston unit, with at least one cylinder accommodating an injection solution and having an outlet opening, and with at least one piston. The cylinder, or a component mounted upstream of the cylinder, has an end face from which, during correct emptying of the cylinder-piston unit, a short cannula protrudes, which has an outlet opening at its free end. The outlet opening has a surface with a border which has a point near the bottom or an edge near the bottom. The point near the bottom or the edge near the bottom lies 0.15-0.3 mm away from the end face or the front-most point or edge thereof. A cylinder-piston unit is developed which is intended for a disposable injector and which is suitable for virtually painless penetration of the human skin, among other reasons for the administration of highly viscous injection solutions. | 09-04-2014 |
| 20140251125 | Master Cylinder - In order to provide a master cylinder, in particular for a clutch system, an actuating system or a braking system of a vehicle, which enables secure sealing of the cylinder chamber relative to the outside, as well as a reliable flow of hydraulic medium into the cylinder chamber, it is proposed that the piston comprises a first section which has a cylindrical lateral surface and a second section which has at least one region which is set back radially inwardly with respect to the cylindrical lateral surface of the first section, wherein at least one set-back region extends to an end of the piston and wherein the first and second sections are arranged on the piston in such a way that in an actuating position of the piston, the main sealing element in the first section of the piston abuts in sealing manner thereagainst and in the pressure equalisation position of the piston, in the second section of the piston between the piston and the main sealing element, at least one gap is formed, through which hydraulic medium can flow along the piston from the supply chamber into the cylinder chamber in order to equalise the pressure. | 09-11-2014 |
| 20140251126 | FLUID PRESSURE CYLINDER AND MANUFACTURING METHOD THEREFOR - A fluid pressure cylinder includes a cylinder tube, a piston and a solid piston rod. The piston rod includes a head-side passage defined by a head-side shaft hole extending in an axial direction, a head-side outer hole open on a part projecting from the cylinder tube and a head-side inner hole open to a head-side chamber and allowing communication between a head-side chamber and a fluid pressure source, and a bottom-side passage allowing communication between a bottom-side chamber and the fluid pressure source. The head-side shaft hole includes an opening end and a tip formed inside the piston rod. The opening end of the head-side shaft hole is sealed by a sealing member. | 09-11-2014 |
| 20140283680 | AIR COMPRESSOR HAVING CHAMBERED PISTON HEAD - An air compressor assembly includes a cylinder housing, an outlet receptacle disposed on the cylinder housing, and a partition having an air passage formed between the cylinder housing and the outlet receptacle, a piston slidably received in the cylinder housing and having a piston rod extended from a piston head for moving relative to the cylinder housing to generate a pressurized air, the piston head includes an upper surface, and includes a cavity formed in the piston head and defined by a bottom surface and an inner peripheral surface and opened upwardly through the upper surface of the piston head and faced and directed toward the partition of the cylinder housing for partially receiving the pressurized air. | 09-25-2014 |
| 20140298984 | Two-Part Stationary Ring for Devices Having Pistons - In some two-stroke engines, a stationary ring is disposed in a groove in the cylinder liner. However, it is a challenge to install such a stationary ring while maintaining a narrow gap to minimize gas flow through the gap. A ring system for an internal combustion engine is disclosed that includes an L-shaped, split ring with a reentrant angle and a nested, split ring with a convex quadrilateral cross section nested with the L-shaped ring proximate the reentrant angle. The two rings are affixed so that the two gaps of the split rings cannot align. Or, in other embodiments, the two are allowed to rotate relative to each other over a predetermined angle. | 10-09-2014 |
| 20140298985 | COMPRESSOR BLOCK - The present invention refers to a compressor block ( | 10-09-2014 |
| 20140311337 | PISTON CYLINDER ARRANGEMENT OF AN AEROSTATIC LINEAR COMPRESSOR | 10-23-2014 |
| 20140318367 | Insulating Gas Boundary Layer for Internal Combustion Engines - A cylinder has an insulating gas boundary layer (IGBL) across the cylinder wall inner surface, the IGBL formed by injection of an insulator fluid into the combustion chamber of the cylinder. In one implementation, a pressure differential is engineered between the top region of the cylinder and the bottom region of the cylinder. In yet another implementation, the insulator injection pressure is temporally modified in synchronicity with the piston cycle and/or in accordance with other temporal factors to provide appropriate IGBL coverage. | 10-30-2014 |
| 20140331854 | APPARATUS FOR AND METHOD OF ATTACHING A PISTON TO A CYLINDER ROD - Disclosed embodiments include hydraulic cylinder assemblies and piston assemblies for use in hydraulic cylinder assemblies. A rod is attached to a piston. The rod has first portion, a second portion with a cross-sectional area that is less than a cross-sectional area of the first portion, and a third portion positioned between the first and second portions. The third portion has a cross-sectional area that transitions between the cross-sectional area of the first portion and the cross-sectional area of the second portion. A collar is sized to fit over the rod with an internal feature that engages the third portion of the rod. A fastener holds the piston against the collar and provides a clamp force on the piston. | 11-13-2014 |
| 20140338526 | VARIABLE-VOLUME HEAD - Disclosed is a device that includes a natural-gas compression system having a natural-gas powered combustion engine, a compression cylinder configured to receive natural gas and output compressed natural gas, a piston disposed in the compression cylinder and configured to translate through the compression cylinder in response to mechanical power received from the natural-gas powered combustion engine, and a variable-volume head mounted to the compression cylinder and configured to vary a compressed volume of the compression cylinder. In some instances, the variable-volume head includes a head body, an adjustment screw rotatably coupled to the head body, a plug moveable in threaded engagement with the adjustment screw, and an anti-rotation device coupled to the plug, the head body, or both. The anti-rotation device may be configured to impede the plug from rotating relative to the head body as the adjustment screw rotates. | 11-20-2014 |
| 20140345452 | FLUID END HAVING SPHERICAL CROSS-BORE INTERSECTION - A fluid end of a high-pressure pump having a power end bore, a discharge bore, a suction bore, an access bore, and a cross-bore intersection formed in portions of the fluid end is provided. A transitional open area opens into the cross-bore intersection from the power end bore; a transitional open area opens into the cross-bore intersection from the access bore; a transitional open area opens into the cross-bore intersection from the suction bore; and a transitional open area opens into the cross-bore intersection from the discharge bore. A spherical geometry is created in the cross-bore intersection. A spherical surface forms an outer boundary of the cross-bore intersection. | 11-27-2014 |
| 20140345453 | CYLINDER DEVICE HAVING IMPROVED WEAR RESISTANCE THROUGH OPTIMAL ARRANGEMENT OF FINE TEXTURES - There is provided a cylinder device having optimal arrangement of fine textures and optimal surface roughness capable of reducing wear of a cylinder bore side and a piston ring by processing fine textures in an optimal selection region of the cylinder bore side to improve lubrication characteristics between the piston ring and the cylinder bore side while reducing engine oil consumption by processing surface roughness of the cylinder bore side to an optimal status. | 11-27-2014 |
| 20140360355 | Cylindrical Surface Profile Cutting Tool and Process - A cutting tool. The cutting tool includes a cylindrical body and one or more axial rows of cutting elements, which project outwardly from and are situated radially to the circumference of the cylindrical body. Each cutting element of each row includes one or more pocket cutting elements and one or more groove cutting elements. Each pocket cutting element includes a cutting surface. Each groove cutting element includes a cutting surface having groove cutting teeth. | 12-11-2014 |
| 20140360356 | Vented Pressurized Gas-Powered Actuator - A vented pressurized gas-powered actuator includes a housing having a central longitudinal axis and an inner surface. At least one vent groove extends from the inner surface in a direction away from the axis. The at least one groove has a first end spaced apart from a first plane extending perpendicular to the axis, and a second end spaced apart from a second plane extending perpendicular to the axis. The groove second end is closer to the second plane than to the first plane. | 12-11-2014 |
| 20140360357 | Vented Pressurized Gas-Powered Actuator - A vented pressurized gas-powered actuator includes a housing having a central longitudinal axis and an inner surface. The inner surface has a constant radius between first and second planes extending perpendicular to the axis. At least one vent groove extends from the inner surface in a direction away from the axis. The at least one groove has a first end intersecting the first plane. | 12-11-2014 |
| 20150053077 | GREY CAST IRON HAVING EXCELLENT DURABILITY - Disclosed is grey cast iron having an excellent durability and comprising carbon (C) in an amount of about 2.6 to 3.2 wt %, copper (Cu) in an amount of about 0.7 to 0.9 wt %, phosphorus (P) in an amount of about 0.4 to 0.7 wt %, molybdenum (Mo) in an amount of about 0.2 to 0.4 wt %, tin (Sn) in an amount of about 0.02 to 0.08 wt %, and a balance of iron (Fe) and trace amounts of unavoidable impurities, and a method for production thereof. The present invention improves tensile strength, fatigue strength, and the like and further reduces friction coefficient of the grey cast iron as compared with a conventional material. The grey cast iron has an excellent durability and provides a cost reduction of about 10% or more as compared with a conventional material. | 02-26-2015 |
| 20150082979 | HOUSING AND MASTER CYLINDER DEVICE - A lid member has an external shape inscribing a quadrilateral formed by two sets of two facing sides, and has: a pair of first cut-out sections configured by cutting out, in the same size, a pair of diagonal corners from among the two sets of diagonal corners of the quadrilateral; and a pair of second cut-out sections configured by cutting out the other diagonal corners in the same size. The outer shape of the lid member is formed in a point-symmetric shape relative to the center of an opening in a peripheral wall section. The first cut-out sections have a larger surface area than the second cut-out sections, and one out of the pair of first cut-out sections is configured so as to be arranged in the vehicle progression direction and at the bottom in the vertical direction, when a base body is mounted to a vehicle. | 03-26-2015 |
| 20150096438 | CYLINDER ASSEMBLY WITH A CYLINDER POSITION SENSOR - A cylinder assembly is provided. The cylinder assembly includes a cylinder body, a rod member, and a cylinder position sensor assembly. The cylinder body may have a bearing sleeve to support the rod member. The cylinder position sensor assembly may include a cylinder position sensor for sensing the position of the rod member. The cylinder position sensor assembly may be mounted inside a hole in the bearing sleeve. | 04-09-2015 |
| 20150107448 | CYLINDER BORE AND METHOD OF FORMING THE SAME - In one or more embodiments, a method of forming a coated cylinder bore includes honing a cylinder bore to produce a honed cylinder bore, masking partially the honed cylinder bore to form a partially masked cylinder bore, and contacting the partially marked cylinder bore with an electrolytic bath to form the coated cylinder bore. The method may further include applying a pulsed direct current at a voltage of 400 to 500 volts to the electrolytic bath. The contacting step may be carried out via one or more of plasma electric oxidation, plasma electrolytic deposition and micro arc oxidation. | 04-23-2015 |
| 20150143992 | VACUUM BRAKE BOOSTER HAVING TUBES THROUGH WHICH ATTACHEMENT SCREWS PASS AND METHOD FOR REALIZING SAME - A vacuum-operated brake booster includes a housing which consists of a bottom and a cover having an intermediate piston through which tubes, through which attachment screws are to pass, extend. The front end of the tube is threaded, and a peripheral groove is provided behind the thread, a flange being crimped in the groove behind the cover in the housing. The master cylinder is attached via the lugs thereof, which are fitted into the front end of the tube against the front surface of the cover and locked by the nut screwed onto the thread. The front end of the tube has a peripheral groove receiving the flange that consists of a ring and a sleeve, the lip of which penetrates into the groove by crimping. A gasket completes the seal. | 05-28-2015 |
| 20150298675 | Hydraulic Block for a Hydraulic Power Unit of a Hydraulic Vehicle Brake System - A hydraulic block for a hydraulic power unit of a hydraulic vehicle brake system includes a main brake cylinder bore and an intake that are integrated to form a pedal travel simulator. | 10-22-2015 |
| 20150300338 | Pump for Supplying High-Pressure Fuel - A small-sized and simple sliding portion structure for suppressing the deformation of a sliding portion caused by discharge pressure and the external force in fixing, and a pump for supplying high-pressure fuel having the sliding portion structure mounted thereon is provided. A plunger type pump for supplying high-pressure fuel including a cylinder which forms a sliding portion, a plunger which is slidably provided in the cylinder and reciprocates with the rotation of a cam, and a holder member which urges the cylinder against a body, has a configuration in which the cylinder is provided with a holding unit separately from the sliding portion, the holding unit is urged in the direction of the body with an urging force in the axial direction of the sliding portion to form a high-pressure sealing portion, and the cylinder has the sliding portion with the plunger on the low-pressure side than the high-pressure sealing portion. | 10-22-2015 |
| 20150316080 | FLUID PRESSURE CYLINDER - A fluid pressure cylinder includes a displacement block, which is displaceable on another end side of a body. A second connector of a piston rod that constitutes a cylinder unit is screw-engaged via a second cylinder hole with the displacement block. On the other hand, an end of a suction rod to which a negative pressure fluid is supplied is inserted through a cover member. In addition, by inserting a tool into a tool groove, which is formed on an end of the second connector and rotating the tool in a predetermined direction, the displacement block can be moved with respect to the piston rod in directions to approach and separate away from the body. Stated otherwise, a relative position of the displacement block with respect to the body can be adjusted. | 11-05-2015 |
| 20150323072 | ACTUATOR WITH SCREW-IN GLAND AND DETENT STRUCTURE - A fluid actuator includes housing defining a cylinder bore and first and second fluid passages. A circumferential detent groove extends into the housing from the cylinder bore. The cylinder bore receives a piston having a top face and a skirt in sliding engagement. A circumferential detent ring groove extends radially inwardly into the skirt. The detent ring groove has a first portion of a first depth and a second portion of a second, greater depth. An o-ring is at least partially received in the second portion. A wear ring is at least partially received in the first portion and overlies the o-ring. The o-ring biases the wear ring outwardly of the detent ring so that the wear ring may be selectively engaged with the detent groove. | 11-12-2015 |
| 20150360660 | MASTER CYLINDER - A master cylinder includes a piston seal ( | 12-17-2015 |
| 20150369191 | COMPONENT HAVING HIGH-PRESSURE BORES THAT LEAD INTO ONE ANOTHER - In a component ( | 12-24-2015 |
| 20160076559 | FLUID PRESSURE CYLINDER - In a fluid pressure cylinder, a first positioning ring is provided detachably on a first annular projection of a head cover, and a second positioning ring is provided detachably on a second annular projection of a rod cover. Further, a structure is provided in which opposite ends of a cylinder tube are inserted over and capable of being retained on outer circumferential sides of the first and second positioning rings. As a result, by preparing a new cylinder tube having a different diameter, and new first and second positioning rings, and mounting the new cylinder tube through the new first and second positioning rings, which are installed on the first and second annular projections, a fluid pressure cylinder having a different bore diameter can be obtained. | 03-17-2016 |
| 20160076560 | FLUID PRESSURE CYLINDER - A fluid pressure cylinder includes first through fourth stepped portions provided in a multi-stepped manner on a first spigot joint of a head cover, and first through fourth stepped portions provided similarly in a multi-stepped manner on a second spigot joint of a rod cover. A cylinder tube is installed selectively on any one pair of the first through fourth stepped portions. Consequently, by preparing a new cylinder tube that differs in diameter, along with a new piston, and then installing the cylinder tube selectively on any one pair of the first through fourth stepped portions, a fluid pressure cylinder having a different bore diameter is constructed. | 03-17-2016 |
| 20160084273 | MULTI-CYLINDER ASSEMBLY - A multi-cylinder assembly includes a cylinder assembly defining a bore and a piston-rod assembly slidably disposed in the bore of the cylinder assembly. The piston-rod assembly includes a piston rod, a piston-rod sleeve and a retainer. The piston rod includes a piston head, a first rod extending outwardly from the piston head and a rod extension extending outwardly from the first rod. The piston-rod sleeve is disposed about the rod extension of the piston rod. The piston-rod sleeve includes a head portion and a rod portion. The retainer is engaged to the rod extension. The retainer prohibits axial movement of the piston-rod sleeve. | 03-24-2016 |
| 20160097341 | CYLINDER HEAD - A cylinder head located between a cylinder block and a head cover includes a cam chamber arranged in an upper portion of the cylinder head and opening toward the head cover, a projection projecting from a bottom surface of the cam chamber toward the head cover and including an injector insertion hole, and a seating surface arranged in the bottom surface of the cam chamber and receiving a valve spring. The projection includes a top surface defining an injector seal surface around the injector insertion hole. The projection includes a first portion and a second portion separated from the seating surface by different distances along the bottom surface. The distance of the second portion from the seating surface is longer than that of the first portion. A side surface of the first portion is set to have a smaller draft angle than a side surface of the second portion. | 04-07-2016 |
| 20160153446 | LINEAR COMPRESSOR FOR A DOMESTIC APPLIANCE AND DOMESTIC REFRIGERATION APPLIANCE | 06-02-2016 |
| 20160186745 | GASKETLESS HIGH PRESSURE CONNECTION - A sealing system for a high pressure pump operable above 15,000 psi includes a first engagement face formed as part of the vessel and defining an opening into the vessel bore, the first engagement face having a concave cross-section. A seal member is at least partially received within the bore and defines a second engagement face, the second engagement face having a convex cross-section. A retaining member is coupled to the seal member and is operable to move the seal member from an initial contact position with the vessel to a sealing contact position, wherein the first engagement face and the second engagement face define a first contact angle with respect to the axis in the initial contact position and a second contact angle that is greater than the first contact angle in the sealing position. | 06-30-2016 |
