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:
Nov. 11, 1980
Filed:
Mar. 02, 1978
Remi Curtil, Eaubonne, FR;
Societe d'Etudes de Machines Thermiques S.E.M.T., Saint-Denis, FR;
Abstract
A method for improving the efficiency of an internal combustion engine such as a Diesel engine, by ensuring, on the one hand, efficient cylinder scavenging, particularly at light engine loads and/or low speeds, and on the other hand, a reduction of the effective compression ratio resulting in temperature reduction preferably under high engine loads and/or at high speeds. Said method consists in creating, for each engine cylinder and each engine cycle, a reserve of compressed air, during the intake stage, with the intake air and in compressing it by retarding the closing of the intake valve. A non-return valve is accommodated in the intake conduit and said gas reserve is contained in the space between the intake valve and the non-return valve.