Abstract: Disclosed is a scroll compressor including stationary and movable scroll members engaged with each other. The stationary scroll member defines first and second air inlets and first and second air outlets. A first compression path is formed between the first air inlet outlet, and a second compression path is formed between the second air inlet outlet. The scroll compressor further includes a bypass passage for selectively communicating, at least one of the first and second compression paths with a suction pressure area of the compressor. First and second back pressure cavities are formed on a side of the stationary scroll member facing away from the movable scroll member. The first back pressure cavity is in communication with the first compression path by means of a first back pressure passage.

Abstract: The present invention relates to a scroll compressor (100).

Abstract: A pump mechanism for a horizontal compressor comprises: a partition plate disposed in a housing of the horizontal compressor to separate an oil compartment from a motor compartment provided with a motor; and a pump assembly including a first pump and a second pump located in the oil compartment. The first pump sucks oil from the motor compartment to the oil compartment. The second pump delivers the oil from the oil compartment to a lubrication channel inside a rotary shaft. The partition plate is made from a flat plate, and includes: a plate main body extending in a vertical direction; and a flange portion extending from the peripheral edge of the plate main body in an axial direction and secured to the housing. A horizontal compressor including the pump mechanism is also provided.

Abstract: A pressure control valve (100, 200) comprises a valve seat (140, 160) in which is formed a valve hole (142, 162), a first valve sheet member (110, 210) which covers the valve hole and is provided with a fluid passage (118, 218) thereon, and a second valve sheet member (120, 220) which is provided between the valve seat and the first valve sheet member and covers the fluid passage. Wherein, given that the direction directed from the second valve sheet member to the first valve sheet member is a first direction, when the pressure difference across two sides of the first valve sheet member and the second valve sheet member is directed to the first direction and is greater than or equal to a first preset value, the first valve sheet member is opened; when the pressure difference is directed to a second direction opposite to the first direction and is greater than or equal to a second preset value, the second valve sheet member is opened. Also disclosed is a scroll compressor comprising the pressure control valve.

Abstract: Disclosed is an exhaust valve (10A, 10B, 10C, 10D, 10E), comprising a valve body (12), wherein the first end of the valve body is provided with a fluid inlet (15); the sidewall of the valve body is provided with at least one fluid outlet (17) in fluid communication with the fluid inlet (15) and a valve flap (20) for opening or closing the fluid outlet; and the axis direction of the fluid outlet (17) is inclined relative to that of the fluid inlet (15). Further disclosed is a compressor comprising the above-mentioned exhaust valve. The exhaust valve has a relatively low fluid resistance, and is able to significantly reduce the pressure drop in the compressor due to the exhaust valve, so that the operating efficiency of the compressor is increased.

Abstract: A scroll compressor is provided, including: a compression mechanism, a driving mechanism, a suction fitting and a lubrication system. The compression mechanism is adapted to compress working fluid and includes a movable scroll component, a fixed scroll component and a suction window, the working fluid flows into the compression mechanism via the suction window. The driving mechanism includes a driving shaft and is adapted to drive the compression mechanism. The working fluid flows into the scroll compressor via the suction fitting and then flow into the compression mechanism. The lubrication system includes a lubricant source and a compression mechanism oil supply device adapted to supply the lubricant to the compression mechanism from the lubricant source. The compression mechanism oil supply device has an oil supply passage and an outflow opening of the oil supply passage is located between an opening of the suction fitting and the suction window.

Abstract: A scroll compressor (100) comprises an orbiting scroll component (160); a fixed scroll component (150); sealing components (PS1, PS2, PS3, PS4, PS5, PS6), wherein the sealing components match a concave part (158) on the orbiting scroll component (50) so as to form a back pressure chamber (BC) together, and the sealing components are constructed to separate the back pressure chamber from a high-pressure side and a low-pressure side in the scroll compressor (100); and a leakage path (L), wherein the leakage path (L) is constructed to allow fluid in the back pressure chamber (BC) to leak.

Abstract: A scroll compressor (10), comprising a fixed scroll (150), a movable scroll (160) and a drive shaft (30); the scroll compressor (10) further comprises a movable scroll counterweight (40); the movable scroll counterweight (40) is configured to rotate with the drive shaft (30); and the centrifugal force of the movable scroll counterweight (40) caused by the rotation acts on the hub (162) of the movable scroll (160). The above structure can effectively reduce the impact of the centrifugal force of the movable scroll on the radial seal of a scroll component, thus achieving proper radial sealing force between the fixed scroll and the movable scroll at any rotating speed.

Abstract: A scroll compressor is provided, comprising: a compression mechanism comprising a non-orbiting scroll member and an orbiting scroll member, wherein the orbiting scroll member is axially displaceable between an engagement position and a disengagement position; a main bearing housing adapted to support the compression mechanism; a back pressure chamber formed between the orbiting scroll member and the main bearing housing, wherein the back pressure chamber is in communication with at least one of the compression chambers via a communication passage provided in the orbiting scroll member or the non-orbiting scroll member and is adapted to apply a back pressure to the orbiting scroll member to bias the orbiting scroll member toward the engagement position; and a first sealing means provided between the back pressure chamber and a suction zone of the compression mechanism and capable of maintaining sealing when the orbiting scroll member is axially displaced.

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.

Abstract: The present invention relates to a rotor pump (10), comprising: a pump body (50A) capable of being rotatably driven and forming an accommodation cavity (52) therein; a pump wheel (20, 20A) having a main body part (22) capable of rotating in the accommodation cavity and a first shaft part (24) axially extending from the main body part; and a sealing plate (30) comprising an eccentric hole (32) being eccentric relative to the rotation axis of the pump body; the first shaft part is rotatably fitted in the eccentric hole; a suction channel (25) is formed on one side of the pump wheel, and a discharge channel is formed on the other side of the pump wheel; the suction channel and the discharge channel are respectively in fluid communication with a compression cavity formed between the outer circumference of the pump wheel and the inner circumference of the accommodation cavity. The present invention also relates to a rotary machinery comprising the rotor pump.

Abstract: An electronic expansion valve includes a valve component for adjusting the flow of fluid. The valve component includes a valve body, a valve seat provided in the valve body, a valve needle able to open and close the valve seat, an actuating mechanism driving the axial movement of the valve needle and a drive mechanism supplying the actuating mechanism with motive power. The actuating mechanism includes a spindle able to move axially. The electronic expansion valve further includes an electromagnetic retaining mechanism for retaining the spindle. The valve is constructed such that when electricity is supplied to the electromagnetic retaining mechanism, the spindle is retained in a first axial position where the valve needle can adjust the opening degree of the valve seat; when the electricity to the electromagnetic retaining mechanism is cut, the spindle is released into a second axial position where the valve needle closes the valve seat.

Abstract: Disclosed is an exhaust valve (10A, 10B, 10C, 10D, 10E), comprising a valve body (12), wherein the first end of the valve body is provided with a fluid inlet (15); the sidewall of the valve body is provided with at least one fluid outlet (17) in fluid communication with the fluid inlet (15) and a valve flap (20) for opening or closing the fluid outlet; and the axis direction of the fluid outlet (17) is inclined relative to that of the fluid inlet (15). Further disclosed is a compressor comprising the above-mentioned exhaust valve. The exhaust valve has a relatively low fluid resistance, and is able to significantly reduce the pressure drop in the compressor due to the exhaust valve, so that the operating efficiency of the compressor is increased.

Abstract: The present invention relates to a scroll compressor (100).

Abstract: A scroll compressor (100) comprises an orbiting scroll component (160); a fixed scroll component (150); sealing components (PS1, PS2, PS3, PS4, PS5, PS6), wherein the sealing components match a concave part (158) on the orbiting scroll component (50) so as to form a back pressure chamber (BC) together, and the sealing components are constructed to separate the back pressure chamber from a high-pressure side and a low-pressure side in the scroll compressor (100); and a leakage path (L), wherein the leakage path (L) is constructed to allow fluid in the back pressure chamber (BC) to leak.

Abstract: Disclosed are a main bearing housing (40) for a scroll compressor, a dynamic scroll component (60) for the scroll compressor and the scroll compressor. The main bearing housing (40) comprises an anti-thrust surface (S1) for supporting the dynamic scroll component (60), an uneven construction (W) is formed on at least one portion of the anti-thrust surface (S1) to enable a lubricant to form a fluid dynamic pressure lubricating oil film between the main bearing housing (40) and the dynamic scroll component (60). The dynamic scroll component (60) comprises an anti-thrust surface (S2) for being supported by the main bearing housing (40), wherein an uneven construction (W) is formed on at least one portion of the anti-thrust surface (S2) to enable the lubricant to form a fluid dynamic pressure lubricating oil film between the main bearing housing (40) and the dynamic scroll component (60). The scroll compressor comprises at least one of the main bearing housing (40) and the dynamic scroll component (60).

Abstract: A pressure control valve (100, 200) comprises a valve seat (140, 160) in which is formed a valve hole (142, 162), a first valve sheet member (110, 210) which covers the valve hole and is provided with a fluid passage (118, 218) thereon, and a second valve sheet member (120, 220) which is provided between the valve seat and the first valve sheet member and covers the fluid passage. Wherein, given that the direction directed from the second valve sheet member to the first valve sheet member is a first direction, when the pressure difference across two sides of the first valve sheet member and the second valve sheet member is directed to the first direction and is greater than or equal to a first preset value, the first valve sheet member is opened; when the pressure difference is directed to a second direction opposite to the first direction and is greater than or equal to a second preset value, the second valve sheet member is opened. Also disclosed is a scroll compressor comprising the pressure control valve.

Abstract: An electronic expansion valve includes a valve component for adjusting the flow of fluid. The valve component includes a valve body, a valve seat provided in the valve body, a valve needle able to open and close the valve seat, an actuating mechanism driving the axial movement of the valve needle and a drive mechanism supplying the actuating mechanism with motive power. The actuating mechanism includes a spindle able to move axially. The electronic expansion valve further includes an electromagnetic retaining mechanism for retaining the spindle. The valve is constructed such that when electricity is supplied to the electromagnetic retaining mechanism, the spindle is retained in a first axial position where the valve needle can adjust the opening degree of the valve seat; when the electricity to the electromagnetic retaining mechanism is cut, the spindle is released into a second axial position where the valve needle closes the valve seat.

Abstract: A rotary compressor, comprising: a housing (12), comprising a lubricant oil storage part for containing lubricating oil; a compression mechanism (20) disposed in the housing (12); a driving mechanism (30) driving the compression mechanism (20), the driving mechanism (30) comprising a rotation shaft (50), through-holes (54, 56) extending along the axial direction of the rotating shaft (50) are disposed inside the rotating shaft (50), and the rotation shaft (50) is in fluid connection with the lubricating oil storage part via the through-holes (54, 56); and an oil level sensor (120) in fluid connection with the through-holes (54, 56) inside the rotation shaft (50) via a pressurized collection channel (110). Also disclosed is a rotation mechanism, comprising an oil level sensor (120) in fluid connection with the through-holes (54, 56) inside the rotation shaft (50) via the pressurized collection channel (110).