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.

Date of Patent:
Oct. 06, 1987

Filed:

Jun. 18, 1985
Applicant:
Inventors:

Hals N Larsen, County of King, WA (US);

Donald L Stephens, County of Skagit, WA (US);

Assignee:

Paccar Inc, Bellevue, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123 4131 ; 60599 ; 123 63 ;
Abstract

A method and apparatus for quickly adjusting the coolant flow in a tuned, low-flow coolant system to maintain the temperature of air leaving an aftercooler at a desired temperature and for maintaining the temperature of an engine block within a predetermined range, during various engine loads and ambient temperatures. The invention employs a quick-acting, proportional radiator shuttle valve to mix hot coolant from the radiator input with cool coolant from the radiator output for application to the aftercooler and a quick-acting aftercooler shuttle valve to mix cool coolant from the radiator output with coolant from the aftercooler for application to the engine block.


Find Patent Forward Citations

Larsen, Hals. (1987). Quick-response control system for low-flow engine coolant systems (U.S. Patent No. 4697551). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4697551

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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