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:
Nov. 23, 1999
Filed:
Feb. 17, 1998
Michael J Marthaler, Columbus, IN (US);
Cummins Engine Company, Inc., Columbus, IN (US);
Abstract
A fuel cooler and coolant filter assembly for the filtering of coolant and the cooling of a fuel flow for use in connection with a cylinder head of a vehicle engine includes three primary components which are assembled to one another in a stacked configuration and which in turn are assembled to the cylinder head. These three primary components include a fuel cooler core which is assembled directly to the cylinder head and which includes a fuel inlet, a fuel outlet, and a heat exchanger. The interior of the fuel cooler core is designed for the incoming fuel to flow and circulate across the exterior of the heat exchanger prior to exiting. The second primary component includes a filter head assembly with various inlets, outlets, and passageways. The filter head assembly is attached directly to the fuel cooler core so as to deliver coolant into the heat exchanger. The third component is a coolant filter which is connected to the filter head assembly and which filters the flow of coolant from the filter head assembly and then introduces the coolant back into the filter head assembly. A shut off valve is positioned in the filter head assembly so as to block the flow of coolant from the coolant filter, allowing the coolant filter to be replaced without the loss of coolant. A by-pass passageway ensures that coolant continues to flow to the heat exchanger, even when the shut off valve is in a closed condition.