Internal-combustion engines – Four-cycle – Variable clearance
Patent
1980-07-08
1983-04-26
Feinberg, Craig R.
Internal-combustion engines
Four-cycle
Variable clearance
123 52A, 123315, 123197AC, F02B 7504
Patent
active
043809723
ABSTRACT:
To improve the performance of four-stroke internal combustion engines, the piston P of each cylinder C is connected by a connection rod to an intermediate point of a floating link, which point is constrained, for instance by a tracking arm, to travel substantially rectilinearly, and the ends of the floating link are joined by connection rods to primary and secondary crank shafts which are coupled together to rotate at a selected ratio of different rotational speeds, the ratio best being 2:1. The arrangement is such as to give a longer power stroke than induction stroke. Further the cylinder may be provided both with a normal valve-controlled exhaust port and with exhaust ports which are only uncovered at the end of the power stroke.
REFERENCES:
patent: 367496 (1887-08-01), Atkinson
patent: 441582 (1890-11-01), Quaek
patent: 1261058 (1918-04-01), Samain
patent: 1874195 (1932-08-01), King
patent: 2199625 (1940-05-01), Fiala-Fernbrugg
patent: 3021825 (1962-02-01), Garcia de la Para
patent: 4092957 (1978-06-01), Tryhorn
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