Internal-combustion engines – Lubricators – Crankcase – pressure control
Patent
1981-03-26
1983-06-28
Cline, William R.
Internal-combustion engines
Lubricators
Crankcase, pressure control
60605, 92 60, 92 82, 92 86, 92130D, 137312, 184 611, 251 635, 251 636, F15B 104, F16N 714, F01M 104, F01B 3100
Patent
active
043899846
ABSTRACT:
The impeller bearings in a turbocharger on an internal combustion engine are supplied with a coolant, in the form of lubricating oil from the engine's crankcase, during post-shutdown coasting of the impeller. This coolant is supplied by an accumulator including a piston having an upstream side which is subjected to oil under pressure from the crankcase during engine operation to move the piston downstream for loading a spring affixed to the downstream side of the piston. Coolant leaking downstream of the piston is returned to the crankcase through a valve seat which is closed during engine operation by a valve extending from the downstream side of the piston.
REFERENCES:
patent: 1495715 (1924-05-01), Robinson
patent: 1548163 (1925-08-01), Nicholson
patent: 1562037 (1925-11-01), Moore
patent: 2888098 (1959-05-01), Florence
patent: 2930188 (1960-03-01), Haworth et al.
patent: 3138221 (1964-06-01), Kofink et al.
patent: 3827236 (1974-08-01), Rust
patent: 4058981 (1977-11-01), Henson
patent: 4157744 (1979-06-01), Capriotti
Cline William R.
Kramer John M.
Shirk Max E.
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