US 9,850,900 B2 · Rotary compressor and rotation mechanism

Abstract

A rotary compressor, comprising: a housing, comprising a lubricant oil storage part for containing lubricating oil; a compression mechanism disposed in the housing; a driving mechanism driving the compression mechanism, the driving mechanism comprising a rotation shaft, through-holes extending along the axial direction of the rotating shaft are disposed inside the rotating shaft, and the rotation shaft is in fluid connection with the lubricating oil storage part via the through-holes; and an oil level sensor in fluid connection with the through-holes inside the rotation shaft via a pressurized collection channel. Also disclosed is a rotation mechanism, comprising an oil level sensor in fluid connection with the through-holes inside the rotation shaft via the pressurized collection channel. Accurate and reliable detection of the lubricating oil in a compressor can be done using the pressurized collection channel and the oil level sensor, thus greatly saving cost and improving compressor reliability.

Claims37

Dependent claims

A rotary compressor, comprising:

a shell including an oil sump for receiving lubricating oil;
a compressing mechanism disposed in the shell;
a driving mechanism for driving the compressing mechanism, wherein the driving mechanism includes a rotary shaft provided therein, the rotary shaft having a through hole extending in an axial direction therein and being in fluid communication with the oil sump via the through hole;
and
an oil level sensor in fluid communication with the through hole in the rotary shaft through a pressure picking passage such that lubricating oil can flow from the through hole in the rotary shaft through the pressure picking passage to the oil level sensor, wherein the oil level sensor is adapted to sense a level of lubricating oil in the oil sump in response to a pressure of the lubricating oil,
wherein the pressure picking passage further includes a pressure picking pipe disposed in the pressure picking passage that selectively permits the flow of the lubricating oil to the oil level sensor based on a pressure of the lubricating oil.

3 more elements

A rotary machine, comprising:

a shell including an oil sump for receiving lubricating oil;
a rotary shaft disposed in the shell, the rotary shaft having a through hole extending in an axial direction therein and being in fluid communication with the oil sump via the through hole;
and
an oil level sensor in fluid communication with the through hole in the rotary shaft through a pressure picking passage such that lubricating oil can flow from the through hole in the rotary shaft through the pressure picking passage to the oil level sensor, wherein the oil level sensor is adapted to sense a level of lubricating oil in the oil sump in response to a pressure of the lubricating oil,
wherein the pressure picking passage further includes a pressure picking pipe disposed in the pressure picking passage that selectively permits the flow of the lubricating oil to the oil level sensor based on a pressure of the lubricating oil.

2 more elements

Dependencies are inferred from the claim text.

Rotary compressor and rotation mechanism

Life of this patent

Rotary compressor and rotation mechanism

Life of this patent

Abstract

Claims37