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. 13, 1984
Filed:
Feb. 16, 1983
Toshiyuki Takada, Miki, JP;
Hitoshi Yamamoto, Hyogo, JP;
Abstract
A crankchamber precompression type two-cycle internal combustion engine including at least one cylinder assembly, each cylinder assembly including a stepped cylinder constituted by a minor diameter cylinder portion and a major diameter cylinder portion, a stepped piston received in the stepped cylinder and constituted by a minor diameter piston portion and a major diameter piston portion adapted to be fitted in the minor diameter cylinder portion and the major diameter cylinder portion respectively, a crankchamber connected to the major diameter cylinder portion, a working chamber defined between the minor diameter cylinder portion and the minor diameter piston portion, and a sub-intake chamber defined between the major diameter cylinder portion and the minor diameter piston portion. The sub-intake chamber is connected to an auxiliary carburetor set beforehand to form a mixture of fuel of high quality and air, and the crankchamber is connected to a main carburetor set beforehand to form a mixture of fuel of low quality and air. The working chamber is formed, in addition to a main scavenging port communicated with the crankchamber, with an auxiliary scavenging port which is communicated with the sub-intake chamber through a super-charging reservoir.