Opening and closing system for oil path of linear compressor

Abstract

An opening and closing system for an oil path of a linear compressor that facilitates smooth oil supply during the operation of the compressor and has the oil which has been supplied to the compressor partly remained therein when suspending the operation of the compressor for smooth lubrication when reoperating the compressor includes a hermetic vessel in which oil is filled in a bottom part thereof, a frame disposed in the hermetic vessel and communicating with a first oil groove and a second oil groove, a cylinder, a piston linearly reciprocating, the second oil groove being formed on a portion of an outer circumferential surface of the piston, an exhaust cover coupled to one side of the cylinder, an oil supplier communicating with the first oil groove, and a switching means formed between the first oil groove and the oil inflow path for opening and closing the oil inflow path.

Description

field of invention [0001] The present invention relates to a linear compressor, more specifically, to an oil circuit opening and closing system of the linear compressor. This oil circuit opening and closing system can contribute to smooth oil supply during compressor operation, and can also be used when the compressor restarts by keeping the supplied oil part in the compressor when the compressor operation is suspended. The oil retained in the compressor helps with smooth lubrication. Background technique [0002] Recently, in home appliances such as refrigerators and air conditioners, energy-efficient products have been developed. Research on developing a compressor constituting a refrigerating cycle machine installed in a refrigerator or an air conditioner is also actively conducted. [0003] A linear compressor is shown in Figure 1, this compressor is used to suck and compress air at low pressure and discharge compressed air at high pressure. [0004] As shown in the f...

AI Technical Summary

Problems solved by technology

[0015] However, when the operation of the compressor is suspended, the supplied oil will return to the bottom of the container 1 due to its own weight

In this way, when the compressor is restarted under this condition, there is no oil in some parts such as the friction-generating cylinder and the piston, so that the work is carried out under non-lubricated conditions, which leads to wear and friction loss of parts in the system, which also become a problem for overloading at the beginning of re-working

[0016] In addition, when the pressure of the compression chamber for compressing the gas increases due to the movement of the piston to the upper dead center by the driving of the motor, high-pressure refrigerant gas may leak from the gap between the piston and the cylinder and flow into the oil passage

In this case, when high-pressure refrigerant gas flows to the side of the oil supply, noise such as cavitation occurs

Images