Hydraulic system using multiple substantially identical valve as

Details Hydraulic system using multiple substantially identical valve as Hydraulic system using multiple substantially identical valve as

1993-09-03

1995-12-05

Lopez, F. Daniel

Power plants

Pressure fluid source and motor

Having condition responsive control in a system of distinct...

60452, 60486, 91517, 91518, F16D 3900

Patent

active

054718376

ABSTRACT:
A hydraulic control system is designed to permit the use of a plurality of small substantially identical existing valve assemblies in place of a lesser number of larger valve assemblies. In one embodiment, a first pair of variable displacement load sensing hydraulic pumps communicate with a manifold connected to a first valve assembly and another pair of variable displacement load sensing hydraulic pump communicate with a second manifold connected to second and third valve assemblies. A crossover conduit interconnects the manifolds so that fluid from all four pumps can be used by any one of the valve assemblies or shared by two or all three of the valve assemblies. In another embodiment, a third pair of variable displacement load sensing hydraulic pumps communicate with the first manifold 12 which also has another valve assembly connected thereto. Also in this embodiment, two crossover conduits interconnect the manifolds so that the fluid from all six pumps can be used by any one of the valve assemblies or shared by two or more of the valve assemblies.

REFERENCES:
patent: 3847059 (1974-11-01), Beck et al.
patent: 4531366 (1985-07-01), Moriya et al.
patent: 4561341 (1985-12-01), Aikawa
patent: 5063739 (1991-11-01), Bianchetta et al.
patent: 5138837 (1992-08-01), Obertrifter et al.

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