Power plants – Combustion products used as motive fluid – External-combustion engine type
Patent
1978-06-16
1980-07-15
Garrett, Robert E.
Power plants
Combustion products used as motive fluid
External-combustion engine type
91188, 91273, 13762417, 1376242, F02G 302
Patent
active
042121639
ABSTRACT:
A heat engine which the steady burning of liquid or gaseous fuel in a combustion chamber, external to the engine cylinders, is converted to mechanical work by means of expansion of the combustion gases in the engine cylinders. A pair of series inlet poppet valves is provided per engine cylinder so phased to provide a short interval period of gas admission to each cylinder for making the expansion ratio substantially equal to the compression ratio for maximum efficiency. The poppet valves, whose angular interval when they are both open are varied by an amount inversely proportional to the combustor pressure. The gas pressure forces acting on the poppet valves are counterbalanced to permit their actuation by conventional cams and valve gear without excessive cam loads and wear.
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Garrett Robert E.
Look Edward
Ruano William J.
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