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:
Aug. 05, 2014
Filed:
Aug. 12, 2011
Takeo Iida, Koga, JP;
Tadashi Nakagawa, Mibu-machi, JP;
Tomohiro Sakai, Oyama, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
The present embodiments disclose an axial hydraulic pump including a residual pressure regenerating circuit () which is a pipe line communicating with a top dead center side communication port () and a bottom dead center side communication port (). Further, the axial hydraulic pump includes cylinder ports (-to-) which are provided in the respective cylinder bores of the cylinder block () and are operated with the rotation of the cylinder block (). Even further, the axial hydraulic pump includes communication holes (-to-) which communicate with the top dead center side communication port () and the bottom dead center side communication port ().