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:
Aug. 12, 1997
Filed:
Sep. 25, 1995
Thomas J Hollis, Medford, NJ (US);
Other;
Abstract
A temperature control system in an internal combustion engine includes a heating arrangement which channels a flow of temperature control fluid from an engine to and from a heat exchanger used to preheat intake air flowing to an engine intake manifold when the ambient air temperature is relatively cold (e.g., below 20.degree. F.). In one embodiment, the heat exchanger is mounted upstream from a throttle body. The heat exchanger consists of a panel of high capacity heat transferring fins, which are heated by heat conductive tubes wrapped around the periphery of the panel. Flow of temperature control fluid to and from the heat exchanger is regulated by a control valve which is controlled by an engine computer unit in accordance with a set of predetermined values which define a curve that is a function of engine oil temperature and ambient air temperature.