Inertia-controlled valve unit for vehicle braking systems

Details Inertia-controlled valve unit for vehicle braking systems Inertia-controlled valve unit for vehicle braking systems

1977-12-28

1979-06-05

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Inertia control

303 24C, B60T 814

Patent

active

041572050

ABSTRACT:
In an inertia-controlled valve unit, a tubular stepped spool is assembled within a stepped bore of a differential piston through a coil spring. The piston is inserted together with the spool into a stepped bore of a housing in such a manner that the spool is fixed at one end thereof to an inner wall of the housing and that the piston is slidable in relation to the spool within a small diameter portion of the housing bore. The valve unit includes a ball valve housed within a large diameter portion of the housing bore and co-operating with a valve seat provided on the other end of the spool to interrupt the flow of fluid from an inlet chamber to an outlet chamber through the spool when the ball valve is subjected to a deceleration in excess of a predetermined value.

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