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:
Apr. 17, 2018
Filed:
Apr. 20, 2016
Yamabiko Corporation, Ohme-shi, Tokyo, JP;
Iida Denki Kogyo Co., Ltd., Mitaka-shi, Tokyo, JP;
Takamasa Otsuji, Ohme, JP;
Shiro Yamaguchi, Ohme, JP;
Kosuke Matsumoto, Ohme, JP;
Hiroyuki Miyaki, Ohme, JP;
Akira Yamazaki, Mitaka-shi, JP;
Yamabiko Corporation, Tokyo, JP;
IIDA Denki Kogyo Co., Ltd., Tokyo, JP;
Abstract
An engine-driven working machine includes a controller, which varies a control value of a solenoid valve so as to decrease or increase an opening degree of the solenoid valve when a rotating speed of an engine is within a predetermined high rotating speed range and the rotating speed of the engine is lower or higher than a predetermined rotating speed, respectively. In case the controller determines that the engine-driven working machine gets started saw cutting, the controller stops varying the control value of the solenoid valve when the rotating speed of the engine is within the predetermined high rotating speed range and lower than the target rotating speed.