| Entries |
| Document | Title | Date |
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| 20080289713 | Fluid Pressure Pulsation Damper Mechanism and High-Pressure Fuel Pump Equipped with Fluid Pressure Pulsation Damper Mechanism - A fluid pressure pulsation damper mechanism comprising: a metal damper having two metal diaphragms joined together with a hermetic seal for forming a sealed spacing filled with a gas between the two metal diaphragms, an edge part at which are overlapped along outer peripheries thereof; a main body having a damper housing in which the metal damper is accommodated; and a cover attached to the main body to cover the damper housing and isolate the damper housing from an outside air, the metal damper being held between the cover and the main body; wherein the cover is further comprising: a metal plate for making the cover, a peripheral edge of the cover being joined to the main body, a plurality of inner convex curved parts extending toward the main body and a plurality of outer convex curved parts extending in a direction away from the main body, and a plurality of the inner convex curved parts and a plurality of the outer convex parts being disposed alternately inside the peripheral edge of the cover at which the cover is joined to the main body; wherein the cover is attached to the main body, ends of the plurality of inner convex curved parts touch one side of the edge part of the metal damper, which are outwardly formed in radial directions of a part including the sealed spacing in the metal damper; and the metal damper is held between the cover and a metal damper holding part of a holding member placed on the main body. | 11-27-2008 |
| 20110030828 | One Piece Flexible Expansion Loop For Rigid Piping Systems - A piping system for hot water-based fluid substantially above ambient temperature ( | 02-10-2011 |
| 20110162746 | OIL BALANCE DEVICE, A COMPRESSOR UNIT AND A METHOD FOR PERFORMING AN OIL BALANCE OPERATION BETWEEN A PLURALITY OF COMPRESSOR UNITS - The present invention disclosures an oil balance device and a method for performing an oil balance operation between a plurality of compressor units, which are suitable for air conditioner units comprising at least two parallel connected compressor units. Each compressor unit comprises at least one parallel connected compressors. The oil balance device comprises an oil reservoir, a first pipe, a second pipe, a third pipe and a fourth pipe. The four pipes communicate with the oil reservoir respectively. Each pipe is provided with at least one valve to control the opening and the closing of the corresponding pipe. The first valve and the fourth valve are closed and the second valve and the third valve are opened if the compressor unit is in normal operation; the first valve and the fourth valve are opened and the second valve and the third valve are closed if the compressor unit supplies oil; the second valve and the fourth valve are opened and the first valve and the third valve are closed, or the third valve and the fourth valve are opened and the first valve and the second valve are closed, if the compressor unit receives oil. | 07-07-2011 |
| 20110209790 | DAMPING ELEMENT FOR DECOUPLING ELEMENTS, IN PARTICULAR FOR MEMBRANE BELLOWS - A decoupling element for a conduit includes an interior hose made of metal and a corrugated exterior hose surrounding the interior hose, with a hollow-cylindrical gap formed between the corrugated exterior hose and the interior hose. At least one damping element is arranged in the gap, with the damping element(s) constructed of a woven fabric made of a high-temperature-resistant material and having an outside surface with at least one bulge, wherein the bulge positively engages with a corrugation of the exterior hose. The exterior hose may be a membrane bellows. The woven fabric may be a metallic material. The at least one damping element covers, along the rotation axis, preferably a proportional length of at least 20% of the hollow-cylindrical gap and has preferably a static stiffness in the radial direction of less than 100 N/mm. | 09-01-2011 |
| 20110253242 | PUMP INSTALLATIONS - The present invention relates to improvements in or relating to pump installations, It has particular relevance in the field of reciprocating piston pumps, such as condensate removal pumps which are used to remove condensate from air conditioning installations. We describe a liquid pulse damping device ( | 10-20-2011 |
| 20110272051 | Damper Arrangement - A damper arrangement provided in connection with a pipeline for regulating a gas flow being conveyed through the pipeline in a direction. The pipeline over a given distance comprises a branch section, where it is divided into at least two branch pipelines each comprising a damper device that independently of one another can be placed in a fully open position or in a fully closed position. In some embodiments, the branch pipelines after the branch section as seen in the gas conveying direction are united into one single pipeline. | 11-10-2011 |
| 20120000560 | DEVICE FOR FLUID POWER RECUPERATION - A device for fluid power recuperation with increased efficiency and safety may be used in stationary and mobile applications, such as road building machines, hoisting and conveying equipment as well as hydraulic hybrid vehicles. | 01-05-2012 |
| 20120012216 | DEVICE FOR DAMPING PRESSURE VARIATIONS IN A SEALED CHAMBER - The present invention relates to a device ( | 01-19-2012 |
| 20120090717 | MOBILE ENERGY RECOVERY APPARATUS AND METHOD - An energy recovery apparatus and method for recovering and harvesting energy from passing air is disclosed. Energy recovery and harvesting from passing air is accomplished by creating a pressure differential using high and low pressure ports. The energy represented by the pressure differential is extracted using a mass airfoil device which, in turn, is used to create alternative forms of energy which, in turn, is used to support auxiliary and main systems aboard any moving object or form of transport. | 04-19-2012 |
| 20120325356 | Pulsation Attenuation - A system, apparatus, and method for attenuating pulsations in a pumping system. The apparatus includes two pipe loops in fluid communication with a pump. Each of the pipe loops includes two branches with the first branch being longer than the second branch by an amount equal to half of a primary wavelength within a range of wavelengths propagating in a fluid discharged from the pump. | 12-27-2012 |
| 20130160883 | HYDRAULICALLY CONTROLLED ACCUMULATOR-CHAMBER VALVE - A hydraulically controlled accumulator-chamber valve has a closing element and a tappet. The closing element is prestressed via a first compression spring and seals a valve seat in a valve body. The tappet reaches through a leadthrough in the valve body and is moved by an accumulator piston. The accumulator piston is loaded by a second compression spring. The tappet is moved to press the closing element out of the valve seat when there is a specified balance of forces between the spring prestressing forces and a hydraulically active force. The closing element and the tappet are configured as a single-piece component, in order to guide the tappet in the leadthrough in a longitudinally movable manner. The tappet bears against an end face of the accumulator piston during an opening movement. | 06-27-2013 |
| 20130199648 | COMPOSITE ACCUMULATOR - A composite accumulator includes a base having a closed end and an open end, the base having an inner surface that defines a cavity and having a fluid port in communication with the cavity for communicating a hydraulic fluid in and out of the cavity. A cover is disposed over the open end of the base and is secured to the base by a fastener. A piston is disposed within the base and the cover. The piston is sealed to the inner surface of the cover and is translatable along an axis. A biasing member is disposed within the base and the cover and located axially between the piston and the cover. The base and the cover are plastic. | 08-08-2013 |
| 20130255813 | DUCT FOR AIR-CONDITIONING CIRCUIT INCORPORATING A NOISE-REDUCING DEVICE, AND SUCH A CIRCUIT INCORPORATING IT - A duct for fluid under pressure for an air-conditioning circuit having a conduit including a male end fitting of nominal inside diameter D0 and a female end fitting connected to it in a fluid-tight manner in or in the immediate vicinity of an enlarged axial portion of inside diameter D2 of the male or the female end fitting, the female end fitting having a nominal inside diameter D0′, and a tubular noise-reducing device that is mounted inside the male end fitting and defines between an axially internal end and an axially external end of this device at least one fluid flow channel. The enlarged portion of the male or female end fitting has a length L2 such that L2≧0.6D, where D designates their common value if D0 and D0′ are equal or whichever is the lower of the values D0 and D0′ if they are not equal. | 10-03-2013 |
| 20130276929 | DAMPER DEVICE - A damper device includes a first diaphragm having a first peripheral part, a second diaphragm having a second peripheral part, a first support portion disposed on the opposite side from the second peripheral part with respect to the first peripheral part, and a second support portion disposed on the opposite side from the first peripheral part with respect to the second peripheral part. The first peripheral part and the second peripheral part are supported between the first support portion and the second support portion. Radially outer sections of the first peripheral part, the second peripheral part, the first support portion, and the second support portion are integrally welded with each other. | 10-24-2013 |
| 20140166142 | COMPENSATOR OF AN EXHAUST GAS AFTERTREATMENT SYSTEM - A compensator ( | 06-19-2014 |
| 20140299216 | Water hammer arrestor - A hollow, cylindrical water hammer arrestor includes an axial passage; two externally threaded extensions disposed at both ends respectively, each of the externally threaded extensions having a diameter less than that of the axial passage; a plurality of first rings disposed in the axial passage, each of the first rings having a plurality of teeth formed on an inner surface; and a plurality of second rings disposed in the axial passage, each of the second rings having a smooth inner surface. The first and second rings are alternately disposed from one end of the axial passage to the other end in the axial passage. | 10-09-2014 |
| 20140332105 | Pipe Systems - A system relating to ceramic/rubberized lined steel pipes adapted to carry crushed rock and other highly abrasive materials. | 11-13-2014 |
| 20150300353 | PULSATION DAMPENING ASSEMBLY - The present disclosure provides a pulsation dampening assembly for a compressor having an outlet port configured for supplying compressed refrigerant from a compression mechanism of the compressor. The pulsation dampening assembly includes a pulsating disc and a spring. The pulsating disc and the spring are disposed within the outlet port. The pulsating disc includes a plurality of apertures in fluid communication with the compression mechanism. The spring includes a first end engaging the pulsating disc and a second end engaging the outlet port. The pulsating disc is translatably disposed within the outlet port between an operative state and an inoperative state. | 10-22-2015 |
| 20150308602 | DAMPING DEVICE - A damping device, in particular, for damping or preventing pressure shocks, such as pulsations, in hydraulic supply circuits, preferably in the form of a silencer, having a damping housing ( | 10-29-2015 |
| 20160003398 | A PULSATION DAMPER SUITABLE FOR HYGIENIC PROCESSING LINES - A pulsation damper configured to reduce pressure variations in a pipe system. The pulsation damper comprises a first pipe section and a second pipe section. The first pipe section is at least partly placed inside the second pipe section such that a product flow can flow through the first pipe section and then through a space formed between the first pipe section and the second pipe section. Due to the increased cross sectional area of the second pipe section pressure variations can be damped efficiently. | 01-07-2016 |
