Opening and closing system for oil path of linear compressor

Abstract

An oil circuit opening and closing system of a linear compressor, which can help to supply oil smoothly during the operation of the compressor, and when the compressor is suspended, part of the oil that has been supplied to the compressor is retained in it, so that Helps with smooth lubrication during compressor restart. It includes: a sealed container filled with oil at the bottom; a frame communicated with first and second oil grooves; a cylinder; a linearly reciprocating piston with the second oil groove formed on a part of the outer peripheral surface of the piston; an exhaust cover; an oil supply communicated with the first oil tank; and a switch device for opening and closing the oil inflow passage.

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 represented in figure 1 , this compressor is used to suck and compress low pressure air and discharge compressed air at high pressure. [0004] As shown in ...

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

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