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152. 发明专利

JPS62265414A DECOMPRESSOR FOR ENGINE 失效
公开(公告)号：JPS62265414A
公开(公告)日：1987-11-18
申请号：JP10724986
申请日：1986-05-10
申请人： HONDA MOTOR CO LTD
发明人： SHIMIZU YASUHIRO , MIZUOCHI EKUO , OKUBO KAZUNORI , SUGIMOTO YUKIO
IPC分类号： F01L13/08
摘要： PURPOSE:To eliminate the influence of specific gravity and acceleration onto the rotary speed for releasing decompression by moving a pair of flyweights while maintaining a fixed relation and cancelling the specific gravity and the acceleration to be applied onto both flyweights. CONSTITUTION:During stoppage or under low speed rotation of engine, both flyweights 6, 7 are positioned closely through the function of a tensile coil spring 14 while the idle end sections 19, 20 of decompression pins 17, 18 are projected from a slot 2a. Consequently, the profile of a cam 2 projects from the vicinity of a top dead center and required decompressing operation is performed during compression or expansion stroke. During high speed operation of engine, both flyweights 6, 7 are displaced outwardly by the centrifugal force produced through rotation of a cam shaft 1 and contact against the outer circumferential wall face of a recess 3a. Consequently, a pin 27 received in a slot 26 is displaced and the idle end sections 19, 20 of the decompression pins 17, 18 are retreated into the slot 2a of cam 2.

156. 发明专利

JPS61261610A VALVE TIMING CONTROLLER FOR ENGINE TAPPET VALVE SYSTEM 失效
公开(公告)号：JPS61261610A
公开(公告)日：1986-11-19
申请号：JP10485485
申请日：1985-05-14
申请人： MITSUBISHI MOTORS CORP
发明人： MITSUHAYASHI DAISUKE
IPC分类号： F01L13/00 , F01L13/08
摘要： PURPOSE:To suppress noise at the time of the seating of a valve by installing a sub cam to control oscillation of a rocker arm just before the sitting of a valve in the device which is equipped with a device for oscillation center alteration to change valve opening and closing timing by a alterating the center of the rocker arm's oscillation. CONSTITUTION:An intake and exhaust valve 2 is opened and closed by a rocker arm by the action of the rotation of a main cam 3 touching the central part of the rocker arm 1. A rocker arm oscillation center alteration device (M) to change the opening and closing timing of the valve 2 by altering the oscillation center to an arrow direction (a) is installed at the base rim part of the rocker arm 1, and changes the valve opening-closing timing by the action of a hydraulic drive device 11 by varying a port blocking ring 10 to the axial direction of a pin member 5. In this case, the desired aim is achieved by installing at the tip of the rocker arm 1 a sub cam 12 to control the oscillation of the rocker arm 1 just before the sitting of the valve 2.

158. 实用新型

JPS61159642U 失效
公开(公告)号：JPS61159642U
公开(公告)日：1986-10-03
申请号：JP4146585
申请日：1985-03-25
IPC分类号： F02D45/00 , F01L9/02 , F01L13/08 , F02D17/04 , F02D43/00 , F02P9/00 , F02P11/04

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