发明名称 ROTARY VALVE ASSEMBLY AND ASSEMBLY METHOD THEREOF
摘要 <p>A rotary valve assembly and a method of assembling such a valve has a sleeve 5 and a rotor 3 relative rotation between which from a neutral condition adjusts the valve. The sleeve and rotor are biased to the neutral condition by an encircling C-spring reacting on pins corresponding to projections lla and l2 relatively rotatable with the sleeve 5 and rotor 3 respectively. For setting-up the valve in its neutral condition the sleeve and rotor are mounted in a jig l5 with the projection lla of the jig engaging in a recess 27 of an adjustable component in the form of a second C-spring 24 which is initially rotatable on the sleeve 5. The sleeve 5 is rotated relative to the spring 24 and projections lla and l2 to determine the neutral condition by the characteristics of fluid applied through valve ports E, S, P1, P2. The spring 24 is now welded or otherwise secured to the sleeve 5. The spring 24 serves to frictionally engage the sleeve and alleviates displacement relative thereto following adjustment of the valve to the neutral condition and prior to welding. In a second embodiment the projection lla directly engages the sleeve 5 to restrain relative rotation therebetween and the pin l2 is carried by a C-spring to be rotationally adjustable on the rotor 3 for the purpose of setting-up the valve in its neutral condition prior to the pin l2 being welded to the rotor 3.</p>
申请公布号 JPS62295775(A) 申请公布日期 1987.12.23
申请号 JP19870090610 申请日期 1987.04.13
申请人 TRW CAM GEARS LTD 发明人 ARAN REINAA
分类号 B62D5/083 主分类号 B62D5/083
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