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:
May. 19, 2026
Filed:
Mar. 22, 2023
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
This rotary swash plate hydraulic pump includes: a casing; a cylinder block including a cylinder bore and disposed in the casing so as to prevent relative rotation of the cylinder block; a piston that is inserted into the cylinder bore; a rotary swash plate that is housed in the casing so as to be rotatable about an axis and reciprocates the piston; and a variable capacity mechanism that changes an effective stroke length of the piston. The variable capacity mechanism includes a spool that changes the effective stroke length of the piston by adjusting opening and closing of the cylinder bore that corresponds to the spool. The cylinder block includes a spool hole into which the spool is inserted.