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:
Apr. 22, 1986
Filed:
Jan. 09, 1984
Shigehiko Aoki, Hiroshima, JP;
Shizuo Onotani, Hiroshima, JP;
Toshinobu Shimotaka, Kure, JP;
Yoshitaka Nakamura, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A flexible exhaust coupling comprising first and second passage elements, the first passage element being fluid-connected to the engine for receiving the exhaust gases to be discharged from an automobile engine through the second passage element, and a ring seal member having a spherical sealing surface and carried by one of the first and second passage elements, the other of the first and second passage elements having a mating spherical surface. The first and second passage elements are resiliently urged by springs in a direction close towards each other to permit the spherical sealing surface to gas-tightly and slidingly contact the mating spherical surface thereby constituting a resiliently yieldable joint between the first and second passage elements, and at least one air channel is defined exteriorly of the ring seal member for the passage of cooling air to forcibly cool the ring seal member. The inlet and an outlet of the channel are located and opened at respective regions where a pressure difference can be developed when an automobile vehicle moves in one direction such that wind induced by the movement of the vehicle can flow through the channel from the inlet to the outlet by the effect of the pressure differential therebetween.