Fluid controller

Details Fluid controller Fluid controller

2006-06-07

2009-11-03

Rivell, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C060S384000, C251S283000

Reexamination Certificate

active

07610935

ABSTRACT:
The invention provides a fluid controller, e.g. for a hydrostatic power steering. The controller comprises a cylindrical valve member cooperating with a housing to define at least one fluid path from a pressure source to a steering cylinder. The valve member is rotatable in the housing and comprises a sleeve and a spool, wherein the spool is rotatable within the sleeve. The fluid flow is metered by a flow meter, and the valve member comprises a plurality of meter ports communicating the fluid between the valve member and the flow meter. To obtain less friction between the sleeve and the housing and between the sleeve and the spool, the meter ports are grouped in two groups in which groups the ports are in mutually fluid communication.

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