Camshaft drive for an internal combustion engine

Details Camshaft drive for an internal combustion engine Camshaft drive for an internal combustion engine

1986-07-15

1988-01-05

Lazarus, Ira S.

Internal-combustion engines

Poppet valve operating mechanism

Camshaft drive means

123 9027, F01L 126

Patent

active

047168641

ABSTRACT:
The camshaft of an internal combustion engine is driven by a chain drive from an adjacent parallel intermediate shaft, which itself is driven with a toothed belt by the engine crankshaft. For a four valve cylinder head having two overhead camshafts, one camshaft is used as the intermediate shaft. By means of a hydraulic tensioning device applied at the chain drive, the relative rotating position of both camshafts and thus also the control time of the valves can be changed.

REFERENCES:
patent: 2010056 (1933-08-01), Brush
patent: 3361000 (1968-01-01), Buchwald
patent: 4190025 (1980-02-01), Wahl
patent: 4480603 (1984-11-01), Tsuboi

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