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:
Jan. 18, 1983
Filed:
Jan. 07, 1981
Fukashi Sugasawa, Yokohama, JP;
Haruhiko Iizuka, Yokosuka, JP;
Nissan Motor Company, Limited, Kanagawa, JP;
Abstract
An internal combustion engine is disclosed which comprises first and second cylinder units each including at least one cylinder, a stop valve provided between the first and second cylinder units, an EGR passage for recirculating exhaust gases into the second cylinder unit, an EGR valve provided in the EGR passage, and control means for disabling the second cylinder unit when the engine load is below a given value. Means is provided to ensure that the EGR Valve opens after the stop valve closes when the engine load changes from its high condition to a low condition and to ensure that the stop valve opens just after the EGR valve closes when the engine load changes from its low condition to a high condition.