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US 4,326,450 AGranted
Fluid mechanism with axially movable valve-seat
AssigneePoclain Hydraulics
InventorSerge B. Bacquie
Life of this patent
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Abstract
The invention relates to a fluid mechanism supplied with pressurized fluid by means of a "dis-engageable" valve-seat. Such mechanism further comprises a controlled and independent device for re-engaging the said valve-seat. The invention finds an application in the production of a hydraulic relief engine for use on a trailer pulled by a tractor.
Claims10
A fluid mechanism including,
- a cam,
- a cylinder block mounted for rotation about an axis with respect to the said cam, and including a plurality of cylinders,
- a plurality of pistons, each one being mounted for sliding in one of the said cylinders and being operatively associated with said cam,
- said cylinder block including a cylinder pipe, each cylinder pipe, connecting one of said cylinders to a transverse face of said cylinder block,
- a valve-seat,
- said valve seat is axially movable with respect to said cam and immovable with respect to rotation of said cam,
- said valve seat operatively connected to a supply pipe supplying the mechanism with pressurized fluid and an exhaust pipe for removing said fluid,
- said valve seat including a means and capable of moving said valve seat to position said transverse face of said valve seat in said abutting position with said transverse face of said cylinder block,
- activation means for activating said control means to move said valve seat.
6 more elements
Dependencies are inferred from the claim text.