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.

Date of Patent:
Oct. 17, 2017

Filed:

Jan. 26, 2017
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Masao Yoshizawa, Hiratsuka, JP;

Shunsuke Miyamoto, Atsugi, JP;

Kenichi Yamada, Fujisawa, JP;

Assignee:

KOMATSU LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02F 3/64 (2006.01); B60W 30/188 (2012.01); E02F 9/20 (2006.01); E02F 3/34 (2006.01); E02F 3/43 (2006.01); E02F 9/22 (2006.01); B60K 6/445 (2007.10); B60W 10/06 (2006.01); B60W 10/30 (2006.01); E02F 3/42 (2006.01); F15B 11/10 (2006.01); F04B 17/05 (2006.01); F04B 49/20 (2006.01); F04B 49/12 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2079 (2013.01); B60K 6/445 (2013.01); B60W 10/06 (2013.01); B60W 10/30 (2013.01); B60W 30/1886 (2013.01); E02F 3/34 (2013.01); E02F 3/422 (2013.01); E02F 3/431 (2013.01); E02F 9/202 (2013.01); E02F 9/2029 (2013.01); E02F 9/2066 (2013.01); E02F 9/2075 (2013.01); E02F 9/2246 (2013.01); E02F 9/2253 (2013.01); E02F 9/2296 (2013.01); F04B 17/05 (2013.01); F04B 49/12 (2013.01); F04B 49/20 (2013.01); F15B 11/10 (2013.01); B60W 2300/17 (2013.01); B60Y 2200/415 (2013.01); E02F 9/2292 (2013.01); F15B 2211/426 (2013.01); F15B 2211/605 (2013.01); F15B 2211/6651 (2013.01); F15B 2211/6652 (2013.01); F15B 2211/7052 (2013.01); F15B 2211/75 (2013.01); Y10S 903/903 (2013.01);
Abstract

A work vehicle is equipped with an engine, a hydraulic pump, a work implement, a work implement operating member, a work implement control valve, a capacity control device, a travel device, an accelerator operating member, and a control unit. The hydraulic pump is driven by the engine. The work implement is driven by hydraulic fluid discharged from the hydraulic pump. The work implement control valve controls the hydraulic pressure supplied to the work implement. The capacity control device controls a differential pressure between a discharge pressure of the hydraulic pump and an outlet hydraulic pressure of the work implement control valve. The travel device is driven by the engine. The accelerator operating member changes the engine rotation speed. The control unit causes the speed of the work implement to increase by causing the engine rotation speed to increase when an operation amount of the work implement operating member is increased.


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