The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1993
Filed:
Jun. 25, 1991
Leonardo Cadeddu, Crema, IT;
Bendix Italia S.p.A., Crema, IT;
Abstract
The distributor is used for supplying a fluid coming from a source of fluid under pressure and under a pressure which is a function of the pressure of a control fluid. The distributor comprises, in a bore (3) made in a body (1), a double valve consisting, on the one hand, of a first piston (21), one end of which defines with a first plug (5) a control chamber (23) receiving the control fluid, while the other end (27) is pierced with a conduit (29) connected to a reservoir of fluid under low pressure (11), an annular chamber (31) surrounding the first piston (21) and being connected to the consumer circuit of the distributed fluid, and, on the other hand, of a disk (33) forming a shutter and resting on a circular seat (35) stationary relative to the body (1) by way of a return spring (43). The disk (33) is opposite the other end (27) of the first piston, this being capable, under the action of the pressure prevailing in the control chamber (23), of coming up against the disk (33), so as to close communication between the conduit (29) and the annular chamber (31), and then of displacing the disk (33) so as to open communication between a conduit for the inlet of the fluid under pressure and the annular chamber (31). The distributor comprises, furthermore, a second piston (39), one face of which is fixed to the face of the disk (33) opposite the seat (35) of the latter and the other face of which defines with a second plug (7) closing the bore (3) a balancing chamber (41) communicating permanently with the annular chamber (31).