ENGINE VALVE OPERATING SYSTEM
    132.
    发明专利

    公开(公告)号:CA2527942A1

    公开(公告)日:2004-12-16

    申请号:CA2527942

    申请日:2004-05-28

    Abstract: In an engine where a valve lift amount can be continuously varied, a valve- moving device, having a valve lift-varying mechanism, for an engine is capab le of increasing and reducing a valve lift amount without changing a valve opening angle and is also capable of reducing a tappet clearance according t o reduction in the valve lift amount. This prevents an increase in the ratio o f a tappet clearance to a valve lift amount in a low valve lift condition, minimizing effects by variation of a tappet clearance and also reducing a valve seating speed in a low valve lift condition to prevent noise from bein g produced. Reduction in engine performance in a high valve lift condition caused by variation of a tappet clearance is prevented and a valve seating noise in a low valve lift condition is reduced.

    135.
    发明专利
    未知

    公开(公告)号:AT56250T

    公开(公告)日:1990-09-15

    申请号:AT85113626

    申请日:1985-10-25

    Applicant: STANADYNE INC

    Inventor: DOWNING TODD R

    Abstract: A hydraulic lash adjuster has a generally cylindrical, hollow body having a closed end, an open end and a top land at the open end. A plunger is positioned in the body and is held in place by a retainer. The retainer is fastened to the exterior of the body. The retainer has a rim supported on the top land of the body and is held in place by tabs which are folded under into grooves in the side of the body.

    UN EMPUJAVALVULAS HIDRAULICO PARA VALVULAS DE UN MOTOR.

    公开(公告)号:ES2010817A6

    公开(公告)日:1989-12-01

    申请号:ES8802973

    申请日:1988-09-30

    Abstract: UN EMPUJA-VALVULAS HIDRAULICO (10) PARA LAS VALVULAS DE UN MOTOR INCLUYE UN PAR DE PISTONES (PCF, PVD) QUE DEFINEN UNA CAMARA DE PRESION (CP) ENTRE LOS MISMOS Y UN PISTON SEPARADO DE AJUSTE DEL HUELGO (PLA) QUE DEFINE UNA CAMARA DE AJUSTE DEL HUELGO (CLA) CON UNO DE LOS PISTONES DEL PAR. ESTRUCTURAS DE VALVULA DE PASO UNICO (V) PERMITEN EL FLUJO DE FLUIDO DESDE LA CAMARA DE PRESION (CP) A LA CAMARA DE AJUSTE DEL HUELGO (CLA), DESPLAZANDO CON ELLO AL PISTON DE AJUSTE DEL HUELGO (PLA) PARA AJUSTAR, A SU VEZ, EL HUELGO DE LA VALVULA. SE PROPORCIONAN TAMBIEN FUNCIONES DE AMORTIGUACION DEL MOVIMIENTO DURANTE UNA CARRERA DESCENDENTE DE LOS PISTONES EMPUJADORES (PCF, PVD, PLA) MEDIANTE UNA CAMARA AMORTIGUADORA DE LA VALVULA (CD) Y CONDUCTOS DE FLUIDO (90B, 112) ENTRE LAS CAMARAS DE PRESION Y AMORTIGUADORA (CP Y CD, RESPECTIVAMENTE).

    137.
    发明专利
    未知

    公开(公告)号:BR8604923A

    公开(公告)日:1987-07-07

    申请号:BR8604923

    申请日:1986-10-06

    Applicant: EATON CORP

    Inventor: BUENTE STEPHEN M

    Abstract: A hydraulic lash adjuster (10) for valve gear of an internal combustion engine, having a plunger member (44) reservoir chamber (50) with a fluid passageway (70) into the chamber that is substantially lower than the actual vertical height of the chamber and with a reservoir extender means (66) for extending the oil reservoir chamber to a height well above the height of the fluid passageway (70) and a means (78, 86) to precisely meter the flow of oil from the plunger member (44) chamber (50) through a bleed orifice (71) passing through the upper end of the adjuster plunger member (44) with the metering means (78, 86) retained and supported by a reservoir extender means (66).

    140.
    发明专利
    未知

    公开(公告)号:DE2843918B1

    公开(公告)日:1980-04-24

    申请号:DE2843918

    申请日:1978-10-09

    Abstract: A hydraulic tappet includes a tubular cylinder sideable within a bore of a housing, a piston with a reservoir slideably mounted within the tubular cylinder, a lower piston spring biased away from the piston with the reservoir forming a pressure chamber therebetween. The reservoir being in open communication with pressure oil ports and the pressure chamber selectively being closed or open to said reservoir. The closing or opening of the pressure chamber being controlled by the lower piston and cylinder riding on tracks of a cam which control the relative position of the cylinder and lower piston.

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