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:
Oct. 23, 1984
Filed:
Sep. 29, 1982
Seishi Yasuhara, Yokosuka, JP;
Katsuto Yamanouchi, Yokohama, JP;
Nissan Motor Company, , JP;
Abstract
A fuel supply apparatus for a diesel engine includes a fuel tank and a fuel injection pump. The fuel injection pump has an inlet and an overflow outlet. A fuel feed line connects the fuel tank to the inlet of the fuel injection pump. A fuel feed pump is disposed in the fuel feed line to supply fuel from the fuel tank to the fuel injection pump. A fuel filter is disposed along the fuel feed line. A main fuel return line connects the overflow outlet of the fuel injection pump to the fuel tank. An auxiliary fuel return line connects the overflow outlet of the fuel injection pump to the fuel feed line at a position upstream of the fuel filter. A control valve is disposed in the auxiliary fuel return line to selectively block the latter. A device drives the control valve in response to the temperature of fuel in the fuel filter so that the control valve will block the auxiliary fuel return line only when the temperature of fuel in the fuel filter is higher than a preset value.