US 9,004,885 B2 · Reciprocating compressor

Abstract

The present invention relates to a reciprocating compressor in which a cylinder of a compression unit is tightly fixed to a hermetic shell, and a stator of a reciprocating motor is fixed to the hermetic shell by a support spring consisting of a leaf spring, so as to reduce the gap between a compressor body and the hermetic shell and thus reduce the size of the compressor. In addition, the masses of the members of the reciprocating motor and of the compression unit, as well as the elasticity of the spring supporting the members, are properly adjusted to offset the force being applied to the hermetic shell, thereby minimizing the vibrations of the hermetic shell. Further, the relative velocity of the reciprocating motor increases such that the relative velocity of the reciprocating motor is faster than the relative velocity of the compression unit, thereby improving the efficiency of the motor.

Claims12

Dependent claims

A reciprocating compressor comprising:

an airtight container;
a reciprocating motor including stators fixed within the airtight container and a mover reciprocating in an air gap between the stators;
a piston coupled to the mover to make a reciprocal motion;
and
a cylinder coupled within the airtight container such that it is spaced apart from the reciprocating motor and allowing the piston to be inserted therein to form a compression space,
wherein any one of the stators of the reciprocating motor and the cylinder is fixedly coupled to an inner circumferential surface of the airtight container and the other is coupled to the airtight container and supported by a spring.

3 more elements

Dependencies are inferred from the claim text.

Reciprocating compressor

Life of this patent

Reciprocating compressor

Life of this patent

Abstract

Claims12