초록 ▼

A system to dampen high frequency noises in hermetic rotary compressors of the rolling piston type, usually employed in small refrigeration and air conditioning compressors without causing an increase in the cylinder dead volume, and, accordingly, a decrease in the compressor volumetric performance.

A system to dampen high frequency noises in hermetic rotary compressors of the rolling piston type, usually employed in small refrigeration and air conditioning compressors without causing an increase in the cylinder dead volume, and, accordingly, a decrease in the compressor volumetric performance. A resonating chamber is provided in the cylinder or bearing and communication between the compression chamber to the resonator chamber is provided by the vane which rides on the rotating piston as it tilts toward and away from the resonating chamber or passage leading to the chamber.

대표청구항 ▼

A suppressor for reducing pulsating noises in a hermetic rotary compressor comprising: a housing, a cylinder within said housing, a bearing on each face of the cylinder, a piston with an eccentric portion rotating within said cylinder, a slot in the cylinder, a vane having a portion riding on the pi

A suppressor for reducing pulsating noises in a hermetic rotary compressor comprising: a housing, a cylinder within said housing, a bearing on each face of the cylinder, a piston with an eccentric portion rotating within said cylinder, a slot in the cylinder, a vane having a portion riding on the piston eccentric portion to be reciprocated inn the slot, said vane in cooperation with the bearings dividing the space in the cylinder surrounding the piston into a suction chamber and a compression chamber, the vane being tiltable toward one side or the other of the slot depending upon the position of the piston and the pressure differential between the two chambers, a sound muffling resonating cavity formed in one of the cylinder and bearings, the volume of the sound muffling resonating cavity selected relative to the volume of the compression chamber and frequency of the noise to be muffled to achieve muffling of pulsations of sound of a given frequency, said vane when tilted toward the compression chamber side providing communication between the compression chamber and the sound muffling resonating cavity and closing the communication when tilted toward the compression chamber side.