Yoshikazu Yamada
Yoshikazu Yamada, Hiroshima-Shi JP
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20090123737 | Solid Particle Erosion Resistant Surface Treated Coat and Rotating Machine Applied Therewith - A solid particle erosion resistant surface treated coat is provided by which a solid, particle erosion resistance is largely enhanced and a rotating member is given with an oxidation resistance without deteriorating a fatigue strength. Also, a rotating machine, such as a steam turbine, axial compressor or the like, applied with this coat is provided. The solid particle erosion resistant surface treated coat comprises a nitrided hard layer formed on a surface of base material and a PVD (physical vapor deposition) hard layer of at least one layer formed on the nitrided hard layer by a PVD method. The nitrided hard layer has a thickness of at least 30 μm. The PVD hard layer has a total thickness of at least 10 μm. Deformation of the base material by collisions by solid particles is prevented and crack of the coat comprising the nitrided hard layer formed on the base material and the PVD hard layer formed on the nitrided hard layer is prevented. Thereby, the solid particle erosion resistance is secured, life of the solid particle erosion resistant surface treated coat can be elongated and the oxidation resistance and fatigue strength are enhanced. | 05-14-2009 |
20110013860 | BEARING - Disclosed is a bearing including: a base consisting of a Cu alloy; an uneven portion formed on the base; a plating layer consisting of a ferromagnetic metal or its alloy and formed on the base so as to cover the uneven portion; and a Sn alloy layer formed on the plating layer. The surface of the Sn alloy layer constitutes a sliding surface against an object that the bearing supports. | 01-20-2011 |
Yoshikazu Yamada, Wako-Shi JP
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20090288642 | LINK TYPE VARIABLE STROKE ENGINE - In a link type variable stroke engine in which: a crankshaft and a rotary shaft having an eccentric shaft are each rotatably supported on a case main body formed integrally with a cylinder block and opened at one side to form a part of a crankcase, and a support plate fastened to an opened end of the case main body at a plurality of positions; and a piston, the crankshaft and the eccentric shaft are linked by a linking mechanism, in a projection view on a plane orthogonal to axes of the crankshaft and the rotary shaft, two of the plurality of fastening positions at which the support plate is fastened to the opened end of the case main body are disposed on a straight line passing the axes of the rotary shaft and the crankshaft. This configuration can increase the rigidity between the crankshaft and the rotary shaft enough to prevent change of the distance between the crankshaft and the rotary shaft. | 11-26-2009 |
20140041621 | MULTILINK-TYPE INTERNAL COMBUSTION ENGINE - A multilink-type internal combustion engine includes a power transmission structure capable of transmitting rotation of a crankshaft to a pivot shaft. The power transmission structure comprises: a planet gear mechanism having a sun gear mounted on the crankshaft; a drive gear provided on a ring gear section of the planet gear mechanism; a driven gear mounted on the pivot shaft and meshing with the drive gear; and an adjustment mechanism for switching a rotation direction of a carrier of the planet gear mechanism to thereby adjust a meshing phase of the driven gear relative to the drive gear. | 02-13-2014 |
20140209054 | PREMIXED COMPRESSION SELF-IGNITION ENGINE - In a premixed compression self-ignition engine which is compact but capable of exerting a high output, an intermediate portion of a trigonal link is rotatably supported on a crankpin, a large end portion of a connecting rod is connected to one end portion of the trigonal link, and a swing link swingably supported on a fulcrum shaft is connected to another end portion of the trigonal link. The engine includes: an intake port open to a crank chamber; a reed valve mounted in the intake port; a scavenging port configured to guide fresh air from the crank chamber into a cylinder bore in a downward stroke of a piston; an exhaust port provided in a cylinder head and open to a top portion of the cylinder bore; and an exhaust valve configured to be opened before the piston opens the scavenging port in the downward stroke of the piston. | 07-31-2014 |
Yoshikazu Yamada, Hachioji-Shi JP
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20090248906 | WIRELESS COMMUNICATION EQUIPMENT AND CONNECTION PROCESSING METHOD - Wireless communication equipment which associates with a plurality of sets of peripheral equipment present in a prescribed range through wireless communication stores identification code information regarding the associated peripheral equipment, acquires identification code information from the peripheral equipment present in the prescribed range, and determines whether or not the peripheral equipment has already associated on the basis of the identification code information. If the peripheral equipment has not been associated, the wireless communication equipment stores the identification code information by associating them with an image. If the peripheral equipment has been associated, the wireless communication equipment displays the associated image stored by associating them with the acquired identification code information, and connects to the corresponding peripheral equipment in response to the selection of the displayed and associated image. | 10-01-2009 |
Yoshikazu Yamada, Tokyo JP
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20130058773 | METHOD OF MANUFACTURING MATERIAL FOR ROTARY MACHINE COMPONENT, METHOD OF MANUFACTURING ROTARY MACHINE COMPONENT, MATERIAL FOR ROTARY MACHINE COMPONENT, ROTARY MACHINE COMPONENT, AND CENTRIFUGAL COMPRESSOR - A method of manufacturing a material for a rotary machine component, by performing at least a solution treatment on a material made of a duplex stainless steel, wherein, in the solution treatment, the material is heated to a temperature in a range of 950 to 1100° C. and is thereafter cooled to 700° C. at an average cooling rate of equal to or greater than 20° C./min. | 03-07-2013 |
Yoshikazu Yamada, Saitama JP
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20150184556 | VARIABLE VALVE ACTUATING MECHANISM FOR OHV ENGINE - An OHV engine comprises a first and second cam carried by a camshaft rotatably supported by a crankcase to be rotatively actuated by a crankshaft, first and second lower rocker arms pivotally supported by a lower rocker shaft adjacent to each other, and configured to be actuated by the first and second cams, respectively, a clutch member mounted on the second rocker arm in an axially slidable and rotationally fast manner, the clutch member being axially moveable between an engaged position and a disengaged position, the clutch member being provided with an engagement recess configured to receive a corresponding engagement projection of the first lower rocker arm for a joint pivotal movement of the first and second lower rocker arms when the clutch member is at the engaged position, and an actuator for causing the clutch member to move axially between the engaged position and the disengaged position. | 07-02-2015 |
20150184563 | CYLINDER LUBRICATION SYSTEM FOR TWO-STROKE ENGINE - In a cylinder lubrication system for a two-stroke engine, a plurality of lubricating oil supply openings ( | 07-02-2015 |
20150184574 | TWO-STROKE ENGINE WITH FUEL INJECTION - In a two-stroke engine including a scavenging port ( | 07-02-2015 |
20150184579 | TWO-STROKE ENGINE WITH VARIABLE SCAVENGING PORT - Provided is a two stroke engine that can vary the timing of opening and closing the scavenging port ( | 07-02-2015 |