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. 15, 2026
Filed:
Oct. 30, 2025
Nachi-fujikoshi Corp., Tokyo, JP;
Takaya Yokota, Toyama, JP;
NACHI-FUJIKOSHI CORP., Tokyo, JP;
Abstract
A configuration of a hydraulic motor according to the present disclosure includes: a cylinder barrel rotatably supported in a housing together with a shaft; a plurality of pistons slidably inserted into the cylinder barrel in an axial direction; a swash plate for changing strokes of the pistons; a control piston for adjusting an angle of the swash plate; a valve body provided with an inflow port and an outflow port; a female thread formed at an end portion of the shaft of the cylinder barrel on a valve body side; a shaft member (hexagonal bolt) having irregularities on an outer peripheral portion and attached to the female thread; and a sensor disposed between the inflow port and the outflow port and detecting the irregularities of the shaft member.