Acoustic fluid machine

Details Acoustic fluid machine Acoustic fluid machine

2007-08-07

2007-08-07

Sherry, Michael (Department: 2836)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S250000, C181S273000, C181S276000, C417S057000, C417S322000, C417S410100

Reexamination Certificate

active

10922383

ABSTRACT:
An acoustic fluid machine such as an air compressor comprises an acoustic resonator, a valve device and a piston. Air is sucked into the resonator through the valve device at one end of the resonator. The piston at the other end of the resonator is reciprocated by an actuator to compress the air in the resonator to cause resonance to increase pressure of the air significantly. The inner surface of the resonator is suitably curved to comply with the formula of a half-period cosine function.

REFERENCES:
patent: 5319938 (1994-06-01), Lucas
patent: 5515684 (1996-05-01), Lucas et al.
patent: 6638032 (2003-10-01), Vanden Brande et al.
patent: 7086648 (2006-08-01), Steinetz
patent: 0447 134 (1991-09-01), None
patent: 0 570 177 (1993-11-01), None
patent: 2004-277350 (2004-04-01), None

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