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:
Feb. 24, 2026
Filed:
Jun. 21, 2021
Applicant:
Komatsu Ltd., Tokyo, JP;
Inventors:
Takahiro Hirama, Tokyo, JP;
Keiichi Hayashi, Tokyo, JP;
Assignee:
KOMATSU LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B62D 5/065 (2006.01); B62D 5/12 (2006.01); E02F 9/20 (2006.01);
U.S. Cl.
CPC ...
B62D 5/065 (2013.01); B62D 5/12 (2013.01); E02F 9/20 (2013.01);
Abstract
A work machine, includes steering cylinders that drive a front frame with respect to a rear frame. A directional control valve changes a supply amount of hydraulic fluid to the steering cylinders. A steering wheel operates the directional control valve. A variable capacity pump discharges the hydraulic fluid to the directional control valve. Cylinder stroke sensors are provided for detecting the turning angle of the front frame with respect to the rear frame. A controller reduces the discharge flow rate of the variable capacity pump on the basis of the detection values of the cylinder stroke sensors.