Hydraulic control for a clutch
AssigneeVan Doorne's Transmissie B.V.
InventorTheodorus P. M. Cadee
Life of this patent
Estimating the term…
Abstract
Apparatus for controlling a clutch operable by fluid pressure in an operation space includes a fluid supply conduit, a rotatable control valve with a valve member displaceable by centrifugal force against the force of a biasing spring for connecting the fluid supply conduit to the operation space, and a fluid connection between the operation space and the valve member for supplying fluid pressure from the operation space to the valve member in a direction against the centrifugal force.
Claims10
An apparatus for controlling a clutch operable by means of a fluid pressure in an operation space, said apparatus comprising a fluid supply conduit, a rotatable control valve with a valve member displaceable by centrifugal force against the force of a biasing spring for connecting the fluid supply conduit to the operation space, and a fluid connection between the operation space and the valve member for supplying fluid pressure from the operation space to the valve member in a direction against the centrifugal force.
In a clutch having a rotary input, a rotary output, an engageable and disengageable friction coupling between the input and the output, a fluid pressure supply conduit for supplying fluid to an operation space, and a fluid pressure operated device responsive to the pressure in the operation space for engaging and disengaging the friction coupling, an improved control for said fluid operated device comprising:
- a fluid pressure control valve assembly rotatable upon rotation of the input, the valve assembly including a valve member displaceable by centrifugal force during rotation of the valve assembly in mode to pass fluid pressure from said supply conduit to said operation space;
- spring means biasing said valve member in a direction opposite to the direction of displacement by centrifugal force;
- and fluid connection means for passing fluid pressure from said operation space to the valve member in a mode to load the valve member in the same direction as said spring.
Dependencies are inferred from the claim text.