Protective cap assembly for an exhaust pipe

Details Protective cap assembly for an exhaust pipe Protective cap assembly for an exhaust pipe

1977-05-18

1978-08-15

Hart, Douglas

Power plants

Internal combustion engine with treatment or handling of...

Divider, collector, valve means, or boundary layer device...

98 59, F01N 700, F23L 1702

Patent

active

041062906

ABSTRACT:
A protective cap assembly for an exhaust pipe. The cap assembly includes an inverted generally conical cap which is adapted to engage the upper end of the exhaust pipe to close off the pipe during periods when exhaust gas is not being discharged from the exhaust pipe. A series of supports are connected to the periphery of the cap and extend downwardly along the inner surface of an outer housing and are connected to a ring which is mounted for sliding movement with respect to the housing. During periods when the exhaust gas is being discharged from the exhaust pipe, the pressure of the exhaust gas will raise the cap from the exhaust pipe and upward movement of the cap is limited by engagement of the ring with a stop formed on the inner surface of the housing. The lower end of the housing is provided with a smaller diameter and is clamped to the outer surface of the exhaust pipe, and a series of drain holes are formed in the housing adjacent the smaller diameter lower end to permit draining of any water which may accumulate in the space between the housing and the exhaust pipe. The conical configuration of the cap serves to deflect the exhaust gas upwardly and outwardly as well as centering the cap with respect to the pipe.

REFERENCES:
patent: 2420700 (1947-05-01), Curphy
patent: 3012495 (1961-12-01), Miller
patent: 3022717 (1962-02-01), Webster
patent: 3110239 (1963-11-01), Dashwood
patent: 3446010 (1969-05-01), Hopkins

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