Air supply system for an internal combustion engine
This patent describes a reciprocating piston internal combustion engine having a crankshaft and at least two cylinders, each cylinder having a displacement volume V{sub 1}, the improved means for supplying air to each cylinder. It comprises: a rotary, trochoidal chamber air pump defining at least one pair of pumping chambers, the number of pumping chambers being equal to the number of cylinders in the engine; air intake conduits connecting each pumping chamber to one cylinder of the engine; a rotor rotatable in each pair of pumping chambers, the rotor having three faces such that passage of a face of the rotor through a pumping chamber forces air in the pumping chamber into the associated air intake conduit and, consequently, into the engine cylinder; and means interconnecting the rotor and the crankshaft so as to rotate the rotor approximately one revolution for every three revolutions of the crankshaft.
- Assignee:
- NOV; EDB-91-124174; NOV-91-018070
- Patent Number(s):
- A; US 4998525
- Application Number:
- PPN: US 7-364318
- OSTI ID:
- 5366315
- Country of Publication:
- United States
- Language:
- English
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