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. 26, 2026
Filed:
Dec. 17, 2024
Aisin Corporation, Kariya, JP;
Hiroshi Isono, Kariya, JP;
Takeshi Hashizume, Kariya, JP;
AISIN CORPORATION, Kariya, JP;
Abstract
A reciprocating internal combustion engine including a planetary gear mechanism including a ring gear, a carrier rotatably supported with respect to the ring gear, and a planetary gear rotatably supported with respect to the carrier and meshes with the ring gear; a crank member coupled to rotate integrally with the planetary gear; a piston member coupled to the crank member to be relatively rotatable about an input axis set separately from the planetary axis; and a transmission mechanism transmitting a rotation of the carrier to an output member. The crank member includes a pair of crank portions disposed separately on both sides of the carrier in the axial direction, the piston member includes a piston body and a pair of coupling portions disposed separately on both sides of the carrier axially, the first crank portion and the second crank portion are disposed to extend in the planetary radial direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile