Split cycle engine

Details Split cycle engine Split cycle engine

1983-03-14

1986-01-28

Koczo, Michael

Internal-combustion engines

Rotary

With plural compression volume means

123215, 123234, F02B 5308

Patent

active

045664110

ABSTRACT:
The improved split cycle engine comprises a compression unit 1 mechanically connected to an expansion unit 3 via shaft 2 and to a load via a coupling or centrifugal clutch 5, and a second compression unit 7 which is mechanically connected by shaft 9 to a second expansion unit 8. Compression unit 1 is fed by compression unit 7 and its output is fed to expansion unit 3 via a variable cut-off valve. Fuel is burnt in the air supplied by compression unit 1. The exhaust of expansion unit 3 feeds expansion unit 8. At high cut-off ratios shaft 9 rotates many times faster than shaft 2 and its relative speed is reduced as the cut-off ratio is decreased. At high cut-off ratios the torque output is substantially higher than that of a conventional internal combustion engine so that a complicated transmission is not necessary.

REFERENCES:
patent: 2102946 (1937-12-01), Dugelay
patent: 2239922 (1941-04-01), Martinka
patent: 3688749 (1972-09-01), Wankel
patent: 3858557 (1975-01-01), Myers et al.
patent: 3989011 (1976-11-01), Takahashi
patent: 4126200 (1978-11-01), Miller et al.
patent: 4253805 (1981-03-01), Steinwart et al.

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