초록 ▼

One of the driving and driven parts of the coupling is connected to a cylinder (10) and the other to a piston (11) which delimit therebetween two antagonistic chambers (13, 14). The chambers have a substantially constant volume, are filled with a practically incompressible hydraulic liquid, and are

One of the driving and driven parts of the coupling is connected to a cylinder (10) and the other to a piston (11) which delimit therebetween two antagonistic chambers (13, 14). The chambers have a substantially constant volume, are filled with a practically incompressible hydraulic liquid, and are interconnected through two unidirectional circuits (18, 19) which have opposite directions and each a substantially constant volume. A distributing device (22) is so arranged as to either bring into action one or the other of the unidirectional circuits, or to neutralize both of them.

대표청구항 ▼

In an internal combustion engine having a rotatable crankshaft and a rotatable camshaft, the camshaft being position variable relative to the crankshaft, being subject to torque reversals during the rotation thereof, having a vane with at least one lobe secured to the camshaft for rotation therewith

In an internal combustion engine having a rotatable crankshaft and a rotatable camshaft, the camshaft being position variable relative to the crankshaft, being subject to torque reversals during the rotation thereof, having a vane with at least one lobe secured to the camshaft for rotation therewith, and having a housing mounted on the camshaft for rotation with the camshaft and for oscillation with respect to the camshaft, the housing having at least one recess defining a fluid receiving chamber and receiving therein the at least one lobe of the vane and permitting oscillation of the at least one lobe within the at least one recess as the housing oscillates with respect to the camshaft, the engine further having means for transmitting rotational movement from the crankshaft to the housing and flow control means for varying the position of the housing relative to the camshaft by controlling fluid flow to and from the housing recess to thereby permit the vane lobe oscillation in the housing recess chamber, the method comprising: actuating the flow control means to be operable for varying the position of the housing relative to the camshaft in reaction to torque reversals in the camshaft.