Pipe joints or couplings – With heating or cooling
Patent
1984-01-09
1986-04-22
Scanlan, Jr., Richard J.
Pipe joints or couplings
With heating or cooling
285267, 285268, 285DIG10, F16L 5300
Patent
active
045837686
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.
REFERENCES:
patent: 2502753 (1950-04-01), Rohr
patent: 2520501 (1950-08-01), Guiler et al.
patent: 4097071 (1978-06-01), Crawford et al.
patent: 4165107 (1979-08-01), Affa et al.
patent: 4188784 (1980-02-01), Hall
Sparta Mfg. Co., Dover, Ohio, Teflon brochure, 1960.
Aoki Shigehiko
Nakamura Yoshitaka
Onotani Shizuo
Shimotaka Toshinobu
Mazda Motor Corporation
Scanlan, Jr. Richard J.
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