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:
Jun. 10, 1986
Filed:
Mar. 28, 1985
Applicant:
Inventor:
Hans Mezger, Freiberg, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P / ;
U.S. Cl.
CPC ...
123 4177 ; 1231 / ; 123 4185 ;
Abstract
An apparatus for cooling valve seat rings which are arranged in a cylinder head of an internal-combustion engine, the valve seat rings being surrounded by annular ducts through which a cooling medium can flow. For the forced circulation of the cooling medium in the annular ducts of the valve seat rings, a first guiding duct is connected to feeding lines of the annular ducts and to the output side of a pump and a second guiding duct is connected to discharge lines and to the intake side of the pump.