Valve-controlled internal combustion engine

Details Valve-controlled internal combustion engine Valve-controlled internal combustion engine

1991-11-12

1992-09-08

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 123 9034, F01L 134, F01M 106

Patent

active

051449218

ABSTRACT:
A valve-controlled internal combustion engine has an device 13 for adjusting the camshaft 2 relative to its timing gear 14. The adjusting device has an operating sleeve, which is interlocked over different gear systems, on the one hand, with the timing gear and, on the other, with the camshaft, and a hydraulic adjusting piston, which can be acted upon on both sides. Pressure is caused to act upon the adjusting piston by means of the engine oil, which is circulating under pressure and which is branched off before a restrictor 11 in the inflow to the bearings 12 in the cylinder head 2 of the internal combustion engine. By these means, the full pressure of the lubricating pump 7 can be used to shift the operating sleeve.

REFERENCES:
patent: 4883027 (1989-11-01), Oikawa et al.
patent: 4895113 (1990-01-01), Speier et al.
patent: 4928641 (1990-05-01), Niizato et al.
patent: 4942855 (1990-07-01), Muto
patent: 5027762 (1991-07-01), Tokuyama et al.

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