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:
Sep. 16, 2014
Filed:
Sep. 07, 2011
Takeshi Oouchida, Osaka, JP;
Keiichirou Yuzaki, Osaka, JP;
Akifumi Kuroda, Osaka, JP;
Tadao Hirai, Osaka, JP;
Koji Iwaki, Hyogo, JP;
Koji Sakata, Hyogo, JP;
Minoru Kamada, Hyogo, JP;
Takeshi Oouchida, Osaka, JP;
Keiichirou Yuzaki, Osaka, JP;
Akifumi Kuroda, Osaka, JP;
Tadao Hirai, Osaka, JP;
Koji Iwaki, Hyogo, JP;
Koji Sakata, Hyogo, JP;
Minoru Kamada, Hyogo, JP;
Yanmar Co., Ltd., Osaka, JP;
Abstract
In a working vehicle, there is dissolved a risk that a black smoke is discharged, a knocking is generated and an engine stall is caused, if a lot of load is applied to a rotary tiller during various works while traveling at a low speed. In the working vehicle provided with an engine which is mounted to a travel machine body, a common rail type fuel injection device which injects fuel to the engine, and a continuously variable transmission which shifts power from the engine, an engine driving point Q (Q→Q) relating to a rotating speed N and a torque T of the engine is changed in such a manner that the rotation speed come to a high speed side rotating speed Ndissolving an overload, and a change gear ratio of the continuously variable transmission is modified and regulates in such a manner that a vehicle speed V of the travel machine body does not change in the case that the overload acts on the engine of having a low speed Nin the rotating speed N.