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:
Jul. 28, 1987
Filed:
Dec. 11, 1985
Kent Weber, Rockford, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
To provide a pressure regulating valve which is self-powered and has no sliding parts, is capable of controlling fluid pressure to a fixed delta pressure above a sensed vapor pressure, and is otherwise suited for utilization in a two phase thermal management system, a valve body is provided having an inlet port and an outlet port, and a first valve member is adapted to move between an open and a closed position to open and close the inlet port. A first pressurized chamber communicates with the inlet port and acts on the first valve member while a second pressurized chamber communicates with the outlet port and selectively communicates with the first pressurized chamber by means of a second valve member adapted to move between an open and a closed position to open and close a passage between the chambers. Additionally, the pressure regulating valve is constructed such that the first valve member is normally biased toward the closed position in opposition to pressure in the inlet port and the second valve member is normally biased toward the open position in opposition to pressure in the outlet port.