Dual capacity compressor

Expansible chamber devices – Displacement control of plural cylinders arranged in... – Parallel cylinders

Reexamination Certificate

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Details

C092S140000, C417S221000

Reexamination Certificate

active

07146903

ABSTRACT:
Dual capacity compressor including a power generating part (20) having a reversible motor (21, 22) and a crank shaft (23) inserted in the motor (21, 23), a compression part (30) having a cylinder (32), a piston (31), and a connecting rod (33), a crank pin (110) in an upper part of the crank shaft (23) eccentric to an axis of the crank shaft, an eccentric sleeve (120) rotatably fitted to the crank pin (110), and the connecting rod (33) respectively, a key member (130) for positive fastening of the eccentric sleeve (120) to the crank pin (110) in all rotation directions of the motor, and an eccentric mass (200) provided to the eccentric sleeve (120) for rotating the eccentric sleeve (120) around the crank pin (110), thereby preventing relative motion between components that sustain the eccentricity, and permitting a smooth motion between the components.

REFERENCES:
patent: 4236874 (1980-12-01), Sisk
patent: 5951261 (1999-09-01), Paczuski
patent: 6190137 (2001-02-01), Robbins
patent: 6446451 (2002-09-01), Monk
patent: 6755624 (2004-06-01), Bae et al.
patent: 6918335 (2005-07-01), Choi et al.

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