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:
Apr. 11, 1995
Filed:
Jan. 28, 1994
Applicant:
Inventor:
Dale L Hartsock, Livonia, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01N / ;
U.S. Cl.
CPC ...
60300 ; 60323 ; 60324 ;
Abstract
An exhaust manifold (10) for directing heated exhaust gas from an internal combustion engine (12), the manifold comprising a manifold body (32) having an outer wall (34), and an inner wall (42) defining an exhaust passageway (43) for directing the heated exhaust gas. The inner wall (34) has embedded therein a plurality of ceramic members (58) having a lower thermal conductivity than that of the manifold body (32) such that heat transfer through the ceramic members (58) to the outer wall (34) is reduced. The invention also includes a method of manufacturing same.