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. 23, 1982
Filed:
Sep. 02, 1980
Toyota Jidosha Kogyo Kabushiki Kaisha, Aichi, JP;
Abstract
A high compression type internal combustion engine comprising a cylinder head having a flat inner wall, and a piston having a flat top face. The flat inner wall and the flat top face form a squish area therebetween. A recess having a lung-shaped cross-section is formed in the cylinder head. A shallow groove is formed on the flat inner wall of the cylinder head so as to extend from the intake valve to the recess. An exhaust valve is arranged on the bottom of the recess. The squish area comprises a first squish area portion and a second squish area portion. The first squish area portion has an area which is about four times the area of the second squish area portion. A spark plug is arranged in the recess at a position near the first squish area portion and remote from the second squish area portion.