| 摘要 |
<p>988,242. Clutch controls. ANDRE CITROEN S.A. July 6, 1961 [Aug. 3, 1960], No. 24512/61. Heading F2L. The control valve 5 of a piston- and-cylinder unit 2, 3 operating the release lever of a clutch 1 in accordance with engine speed through a centrifugal regulator 22 is normally subjected to a biasing spring 8 which, upon application of the brakes, is rendered inoperative to allow additional pressure liquid to be admitted to cylinder 3 to effect rapid clutch release. As shown, the valve 5 controls liquid inlet and exhaust passages 13, 14, and further passages 15, 16, respectively, communicating with cylinder 3 and a chamber 20 housing spring 8. The latter is normally compressed by an axial rod 10<SP>1</SP> projecting from a piston 10 held by a further spring 9 against the left hand end of a cylinder 10<SP>2</SP> communicating by a pipeline 19<SP>1</SP> with the vehicle brake actuator 19<SP>2</SP>. The regulator 22 is loaded by non-adjustable and adjustable springs 6, 7, respectively. Upon applying the brakes the pressure in line 19<SP>1</SP> moves piston 10 to the right against spring 9, thereby unloading spring 8 and allowing valve 5 to move to the right and admit additional pressure liquid to cylinder 3 for rapid release of the clutch.</p> |
