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:
Jul. 21, 2026
Filed:
Dec. 20, 2022
Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;
Masahiro Ohira, Kobe, JP;
Yoshiyuki Tode, Kobe, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Kobe, JP;
Abstract
A housing includes a spool hole that receives a separated-type spool including a first and a second spool separated from each other in an axial direction of the separated-type spool. The first spool allows a first supply/discharge passage to communicate with either a pump passage or a tank passage. The second spool allows a second supply/discharge passage to communicate with the other pump passage or the tank passage. The housing includes: a first pilot chamber faced by an end surface of an opposite side of the first spool from the second spool; and a second pilot chamber faced by an end surface of an opposite side of the second spool from the first spool. A portion of the spool hole between the first spool and the second spool forms a third pilot chamber. The housing includes a pilot passage that communicates with the third pilot chamber.