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:
Jan. 06, 1987
Filed:
Apr. 03, 1986
Timothy B Brandt, Des Moines, IA (US);
Erwin W Parr, Des Moines, IA (US);
Parr Manufacturing, Inc., Des Moines, IA (US);
Abstract
A pressure regulator having a housing with a chamber disposed therein. A diaphragm is sealingly connected around the inner periphery of the housing for dividing the chamber into two parts. A first port is fluidly connected to a first part of the chamber and is adapted to be attached to a fuel return line. A second port is fluidly connected to the first part of the chamber and is adapted to be fluidly attached to a fuel rail having fuel injectors attached thereto. A third port is fluidly connected to the second part of the chamber and is adapted to be fluidly connected to an intake manifold of an internal combustion engine. A resilient flat washer is attached around the outer periphery thereof to the housing, adjacent to the first part. An elongated valve member is disposed in the first part of the chamber and has one end thereof adapted to be selectively and sealingly received within the opening in the washer. The other end of the elongated valve member is attached by a universal joint to a central portion of the diaphragm. A guide is disposed in the first part of the chamber around the elongated valve member for guiding the valve member into and out from sealing engagement with the washer. A stop is provided also in the guide for limiting of the movement of the diaphragm in one direction thereof to a first position wherein the first part is closed by having the elongated valve member disposed into the opening in the washer. A compression spring in the second part of the chamber is provided for biasing the diaphragm and the elongated valve member to the first position thereof and allowing them to move to a second position thereof to open the valve.