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, 1994
Filed:
Feb. 05, 1993
Shigemitsu Aizawa, Matsumoto, JP;
Takeshi Yamakoshi, Matsumoto, JP;
Ishikawajima-Shibaura Machinery Co., Ltd., Tokyo, JP;
Abstract
In a supercharged 4-cycle engine including an intake passage connecting a fuel-air mixture forming section to a crank chamber, and a supercharging chamber connecting the crank chamber through an intake port to a combustion chamber, wherein when a piston is reciprocated to change a volume of the crank chamber, a fuel-air mixture is sucked from the intake passage into the crank chamber, and the fuel-air mixture compressed in the crank chamber is discharged into the supercharging chamber; a space accommodating a valve operating mechanism inclusive of a rocker arm is communicated with the supercharging chamber. Accordingly, even when a volume of the supercharging chamber itself is small, a supercharging volume 10-20 times a displacement of the engine can be substantially ensured.