Lg Electronics Inc.

Kyoung-Jun Park

Jin-Kook Kim

Ji-young Bae

Kyeong-Ho Kim

Jong-Mok Lee

Hyuk Nam

Jong-Hyuk Kim

Bum-Joon Kim

Young-Hwan Kim

Seon-Woong Hwang

Seong-Jae Hong

Ji-Young Bae

Disclosed are an anti-abrasion device and a reciprocating compressor having the same, whereby a sleeve is fabricated with an outer diameter smaller than an inner diameter of a connecting rod to be non-press-fitted, thereby facilitating an assembly of the sleeve, and also the deformation of an inner diameter of the sleeve is prevented during the assembly of the sleeve, thereby preventing beforehand an increase in an input load of a motor unit due to the deformation of the sleeve and an abrasion of a pin of a crankshaft.

Anti-abrasion device and reciprocating compressor having the same

A compressor having a casing to which a gas suction pipe is connected; a driving motor provided in the casing; a cylinder; a valve supporting plate () covering the cylinder (), the valve supporting plate () having a suction hole () for sucking gas into the cylinder () and two discharge holes () for discharging gas compressed in the cylinder (); a piston () having two protrusions () at a pressure surface in correspondence to the two discharge holes () of the valve supporting plate (), the protrusions () having different sized cross-sections, the piston being linearly reciprocal in the cylinder () by receiving a driving force of the driving motor; a suction valve coupled to the valve supporting plate () to open and close the suction hole (); a discharge valve coupled to the valve supporting plate to open and close the two discharge holes ().

Compressor

A detachable connecting rod includes a first member ()a large end portion () having a trough hole (H), and a first connection rod portion () extending from the large end portion (), the first connection rod portion () having a pair of spaced apart arms defining a coupling groove () extending in the same direction as an axial direction of the through hole (H); a second member () including a small end portion having a through hole (H), and second connection rod portion () extending from the small end portion, the second connection rod () portion being inserted into the coupling groove () and a coupling unit for coupling the first connection rod portion () to the second connection rod portion inserted () into the coupling groove () of the first member (). The detachable connecting rod is useable in a compressor.

Detachable connecting rod and compressor having the same

A capacity variable type twin rotary compressor may include a casing, a motor, a first cylinder having a first compression space, a second cylinder fixed to one side of the first cylinder and having a second compression space, first and second intakes respectively formed in the first and second cylinders and each connected to a gas intake pipe, first and second vane slits respectively formed in the first and second intakes first and second rolling pistons eccentrically coupled to the motor and respectively housed in the first and second compression spaces, first and second vanes slidingly received in the first and second vane slits, respectively, an expansion groove formed at the second vane slit separate from the inner space of the casing, and refrigerant switching valves that allow refrigerant of intake and discharge pressures to be supplied into the second compression space and the expansion groove, such that the second vane contacts the second rolling piston to perform a power driving or separates therefrom to perform a saving driving.

Capacity variable type twin rotary compressor and driving method thereof

Growing community of inventors

Gyeongsangnam-do, South Korea

Kyoung-Jun Park