Arrangement for adjusting the relative rotating position of a ca

Details Arrangement for adjusting the relative rotating position of a ca Arrangement for adjusting the relative rotating position of a ca

1993-04-19

1994-06-28

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 474110, 474111, 474136, F01L 134, F01L 104, F16H 708

Patent

active

053237390

ABSTRACT:
For adjusting the relative rotating position of a camshaft of a reciprocating engine with respect to a second camshaft, a tensioning arrangement of the chain which winds around both camshafts is displaced transversely to the chain. The tensioning arrangement includes two hydraulic pistons which can be moved in mutually opposite directions, are braced with respect to one another by a helical spring and, for the adjusting, can be alternately acted upon by hydraulic pressure. The adjusting force acting upon the hydraulic pistons counteracts the spring force applied to the hydraulic pistons.

REFERENCES:
patent: 3496918 (1970-02-01), Finlay
patent: 3888217 (1975-06-01), Hisserich
patent: 4484543 (1984-11-01), Maxey
patent: 4862845 (1989-09-01), Butterfield et al.
patent: 5109813 (1992-05-01), Trzmiel et al.
patent: 5120278 (1992-06-01), Trzmiel et al.
patent: 5152261 (1992-10-01), Butterfield et al.
patent: 5197420 (1993-03-01), Arnold et al.

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