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:
May. 07, 1985
Filed:
Nov. 30, 1982
Masaaki Matsuura, Tokyo, JP;
Yoshikatsu Nakano, Kawagoe, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A valve driving control apparatus in an internal combustion engine comprises a plurality of power cylinders each having a plurality of intake and exhaust reciprocating valves which are made operative or inoperative depending upon the load conditions of the engine. This apparatus selectively makes the valves operative or inoperative according to a control signal which is generated in a control circuit in response to the engine rotational speed. A part of the intake valves and a part of the exhaust valves are made inoperative in a low rotational speed range of the internal combustion engine. A part of the intake valves is made inoperative and all of the exhaust valves are made operative in a medium rotational speed range. All of the intake and exhaust valves are made operative in a high rotational speed range.