Hot-gas piston-type engine and use thereof in heating, cooling a

Details Hot-gas piston-type engine and use thereof in heating, cooling a Hot-gas piston-type engine and use thereof in heating, cooling a

1981-06-22

1984-03-13

Ostrager, Allen M.

Power plants

Fluid within expansible chamber heated or cooled

Having means within the working chamber to effect the...

60648, 60682, 62 6, 237 121, F01B 2908

Patent

active

044359594

ABSTRACT:
A hot-gas piston engine (4) has, as a compression chamber, a heat exchanger (6) which comprises a number of small pipes (7) or differently designed capillaries which protrude into the burner chamber (5) of a burner (1). In the compression phase, air in the small pipes (7), which serve as the compression chamber, is compressed and additionally heated by the burner flame, whereby the pressure increases, and the piston is driven to execute a downward movement. The scavenging then occurs in the bottom dead center region. The hot outgoing air from the engine enters burner supply line (10) and then the burner, whereby the efficiency of the plant is increased even further. The mechanical energy received at the driven shaft (11) may be used to produce electrical energy or to operate a heat pump. The upper ends of the small pipes protrude into the hot water whereby they are protected from overheating.
Such gas piston-type engines may be used either to produce mechanical energy or as a heat pump or as a refrigeration unit in heating and refrigeration plants or gas turbine plants. The overall efficiency of a plant may be substantially increased by the use of such gas piston-type engines.
The heat exchanger is referenced 6,37,45,50,59,63.

REFERENCES:
patent: 966032 (1910-08-01), Mann
patent: 3858802 (1975-01-01), Stobart
patent: 4008574 (1977-02-01), Rein
patent: 4077216 (1978-03-01), Cooke-Yarborough
patent: 4183213 (1980-01-01), Rao

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