Piston stroke control device for free piston type oscillating co

Details Piston stroke control device for free piston type oscillating co Piston stroke control device for free piston type oscillating co

1985-04-02

1986-09-23

Croyle, Carlton R.

Pumps

Condition responsive control of drive transmission or pump...

Having means to hold or resist movement of pumping element

417216, 417418, 417254, 92131, F04B 2502, F04B 4900, F01B 3100

Patent

active

046132856

ABSTRACT:
In a free piston type oscillating compressor, closed spaces separate from gas springs are provided, and pressures of the closed spaces are regulated, whereby the amplitude, and central position of the stroke, of a free piston can be precisely controlled.

REFERENCES:
patent: 674979 (1901-05-01), McLean
patent: 3183840 (1965-05-01), Conover
patent: 3249053 (1966-05-01), Govan
patent: 3437044 (1969-04-01), Sandes et al.
patent: 3531065 (1970-09-01), Brown
patent: 3937600 (1976-02-01), White
patent: 4033233 (1977-07-01), Toi
patent: 4067667 (1978-01-01), White
patent: 4353220 (1982-10-01), Curwen et al.

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