Supercharged internal combustion engine
A supercharged internal combustion engine is described having an exhaust-driven turbocharger for supplying combustion air to the engine. An auxiliary power system applies a driving force to the compressor under deficient combustion air conditions, to provide the desired amount of combustion air for proper combustion. The power system includes a hydraulic assist motor mechanically coupled with the turbocharger and a hydraulic pump connected by a fluid flow passageway with the motor and permanently coupled with a drive shaft of the engine. The pump is connected through a selector valve to the oil in the reservoir of the engine crankcase or to the vapor chamber above the oil level in the reservoir or to the atmosphere. The selector valve may be manually controlled or automatically controlled by a sensor responsive to one or more of such engine conditions as manifold air pressure, engine speed, etc. The valve may also have a bleed passageway therein that connects with the oil reservoir when the pump is pumping vapor or air to assure adequate lubrication for the pump and, if need be, the hydraulic motor.
- Assignee:
- TIC; ERA-01-016485; EDB-76-042035
- Patent Number(s):
- US 3927530
- OSTI ID:
- 7290499
- Resource Relation:
- Patent File Date: Filed date 28 May 1974
- Country of Publication:
- United States
- Language:
- English
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