Double-headed piston type compressor

Details Double-headed piston type compressor Double-headed piston type compressor

1997-09-25

2000-06-20

Thorpe, Timothy S.

Pumps

Three or more cylinders arranged in parallel, radial, or...

417312, 91499, 92 71, F04B 2708

Patent

active

06077049&

ABSTRACT:
A compressor has an odd number of aligned pairs of cylinder bores. A double-headed piston is accommodated in each aligned pair of bores. The time at which gas is discharged from each cylinder bore is different from that of all of the other cylinder bores. The compressor has a pair of reducing devices, one reducing the pulsation amplitude of the gas discharged from the front cylinder bores and the other reducing the pulsation amplitude of the gas discharged from the rear cylinder bores. The reducing devices reduce the gas pulsation amplitudes of the front and rear cylinder bores at a substantially equal rate. Each reducing device includes a discharge chamber for receiving the gas discharged from the associated cylinder bores and a discharge passage connected to the discharge chamber. The discharge chambers of the reducing devices have equal volumes, and the discharge passages of the reducing devices have equal lengths and equal cross-sectional areas. This structure improves the vibration characteristics of the compressor and thus reduces noise.

REFERENCES:
patent: 4610604 (1986-09-01), Iwamori
patent: 5139392 (1992-08-01), Pettitt et al.

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