Multicylinder self-starting uniflow engine

Details Multicylinder self-starting uniflow engine Multicylinder self-starting uniflow engine

1988-03-31

1990-07-03

Koczo, Michael

Motors: expansible chamber type

Cyclically operable

Working member controlled motive fluid for distributor motor

91293, 91303, 91350, 91353, 91481, F01B 106, F01L 2502

Patent

active

049381172

ABSTRACT:
A uniflow engine has a plurality of cylinders disposed symmetrically around a common crankshaft connected to pistons reciprocating in the cylinders. In response to the availability of a working fluid vapor at a predetermined condition, such as a high pressure or temperature, incoming vapor is supplied to those cylinders in which the respective pistons are in their working strokes to thereby initiate rotation of the crankshaft in a predetermined direction regardless of the position in which the crankshaft had stopped last. Once rotation is initiated and a predetermined mode change speed attained in a "start-up mode" by engine operation from start, vapor inlet valves are controlled to change engine operation over to a "running mode". In the "start-up mode" incoming vapor is admitted over a substantial portion of the piston working stroke, whereas in the "running mode" vapor inflow is terminated relatively early in the working stroke so that a vapor change does work in expandiing against the piston.

REFERENCES:
patent: 487084 (1892-11-01), Benham
patent: 669290 (1901-03-01), Stoer
patent: 1335065 (1920-03-01), Lutz
patent: 2649078 (1953-08-01), Kelly
patent: 3079900 (1963-03-01), Hunnicutt
patent: 3361036 (1968-01-01), Harvey et al.

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