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:
Mar. 17, 1987
Filed:
Oct. 05, 1984
Yoshimasa Hayashi, Kamakura, JP;
Tsuyoshi Tamazawa, Yokohama, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
In order to prevent air leaking into a ICE cooling system wherein the coolant is boiled and condensed in a radiator or condenser in a manner that the rate of condensation can be increased to the point of lowering the pressure within the system to a sub-atmospheric level and thus lower the boiling point of the coolant, special seals are provided between the cylinder head and cylinder block (by way of example) which hermetically seal same against the invasion of contaminating air, while, when the engine is stopped, coolant is admitted to fill the system. To purge any air or like non-condensible which finds its way into the system, coolant is pumped in to overfill same during engine warm up.