Lg Electronics Inc.

Young Ju Bae

Chul Gi Roh

Jong Bong Kim

Hee Hyun Kim

Hyun Sook Kim

Kyoung Jun Park

Dal Soo Kang

Min Young Seo

Kee Joo Kim

Jae Sung Sim

A dual capacity compressor that prevents relative movement from taking place between certain components is provided. The dual capacity compressor includes a power generating part having a reversible motor and a crank shaft inserted in the motor, and a compression part having a cylinder, a piston and a connecting rod. A crank pin is provided in an upper part of the crank shaft, eccentric from an axis of the crank shaft, and an eccentric sleeve is rotatably fitted between the crank pin and an end of the connecting rod. A key member is held at least a part of the eccentric sleeve, and held at a particular portion of at the eccentric sleeve during operation so as to positively latch the eccentric sleeve with the crank pin in both directions rotation of the motor.

Dual capacity compressor

A dual capacity compressor, which can maintain a fixed eccentricity and stable operation, even when the compressor is rotated in both the regular and reverse directions in order to provide multiple compression capacities, is provided. This dual capacity compressor implements an improved key member and associated key member fitting parts to inhibit relative motion of the crank pin and the eccentric sleeve during operation, so as to reduce or eliminate a destabilizing effect due to centrifugal forces on the eccentric sleeve and external forces applied through the connecting rod.

Growing community of inventors

Kyongsangnam-do, South Korea

Young Ju Bae