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    • 1. 发明专利
    • DE1906792A1
    • 1969-09-18
    • DE1906792
    • 1969-02-11
    • BUTTERWORTH HYDRAULIC DEV LTD
    • BUTTERWORTH PHILIP
    • A01K3/00E21B1/26F03C1/10F03C1/14F01L15/04
    • 1,250,791. Reciprocating motors. BUTTERWORTH HYDRAULIC DEVELOPMENTS Ltd. Jan.28, 1969 [Feb.12, 1968], No.6798/68. Headings F1A, F1M and F1P In a fluid actuated motor the centre of oscillation of the piston may be axially adjusted. As shown, a valve piston reciprocates in a sleeve 7 axially slidable in a housing 3, and the exhaust and supply of pressure fluid to motor chambers 5, 6 is controlled by a spool valve 13, exhaust passing from cylinder 2 to a port 48 via passage 37, transfer chamber 26, passage 41 and port 46, and then to exhaust passage 29 by way of passage 52 and transfer chamber 25. Piston travel in the direction X is terminated by port 48 being closed by a land 11. Reversal of spool valve 13 by admitting pressure fluid to alternating pressure chamber 19 causes piston 1 to move in the direction Y as chambers 5, 6 communicate with pressure fluid and exhaust respectively, until land 10 closes either ports 47, 47a or 47b communicating via a port selection device 59 with exhaust passage 29, by which means the piston stroke can be varied. The sleeve is prevented from axial movement by pressure fluid acting through a recess 67 controlled by a pressure/exhaust valve 69. To alter the centre of oscillation supply and exhaust passages are disconnected from the spool valve and connected to a selector valve 78 alternately supplying and exahusting pressure fluid from motor chambers 5, 6. With the piston moving in the direction X valve 69 is adjusted to open recess 67 to exhaust to allow sleeve 7 to slide within the housing 3. Land 11 abuts a peg 12 on the sleeve shortly after closing port 48 to move the sleeve in the direction X. When the desired positioning is reached passages 37, 38 are reconnected to the spool valve and valve 69 is adjusted to reopen recess 67 to pressure fluid to prevent axial movement of the sleeve. In alternative constructions the piston may be continuously reciprocated and means provided to reciprocate the piston and spool in phase.
    • 3. 发明专利
    • Valve train of ohv internal combustion engine
    • OHV内燃机的阀门火车
    • JP2007211666A
    • 2007-08-23
    • JP2006031663
    • 2006-02-08
    • Honda Motor Co Ltd本田技研工業株式会社
    • KIMURA YASUSHIGEENDO TSUNEOUDA MAKOTO
    • F01L31/14F01L1/02F01L5/08F01L15/04
    • PROBLEM TO BE SOLVED: To increase the rotational speed of an internal combustion engine, decrease the size and volume thereof, and simplify the structure thereof.
      SOLUTION: This intake side valve train 48 comprises a second push rod 94 driven by a second cam 92, a valve side second rocker arm 97 connected to one end of the second push rod 94, swingably supported by a valve side rocker shaft 86, and connected to an intake valve 131, a first push rod 84 driven by a first cam 82, and a valve side first rocker arm 87 connected to one end of the first push rod 84, swingably supported by the valve side rocker shaft 86, and connected to the intake valve 131. Two push rods 84, 94 are generally coaxially disposed by arranging the second push rod 94 on the inside of the cylindrical first push rod 84. The intake valve 131 is forcibly opened and closed.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:为了提高内燃机的转速,可以减小其内部尺寸和体积,并且简化其结构。

      解决方案:该进气侧气门机构48包括由第二凸轮92驱动的第二推杆94,连接到第二推杆94的一端的阀侧第二摇臂97,可旋转地由阀侧摇杆轴 86,并连接到进气门131,由第一凸轮82驱动的第一推杆84和连接到第一推杆84的一端的阀侧第一摇臂87,由阀侧摇臂轴86可摆动地支撑 并且连接到进气门131.通过将第二推杆94布置在圆柱形第一推杆84的内侧上,两个推杆84,94大致同轴地设置。进气门131被强制打开和关闭。 版权所有(C)2007,JPO&INPIT