Emerson Climate Technologies (suzhou) Co., Ltd.

Emerson Climate Technologies Gmbh

Copeland Climate Technologies (suzhou) Co. Ltd.

Qingfeng Sun

Roy J Doepker

Masao Akei

Meng Wang

Hongfei Shu

Guangyong Zhou

Xiaogeng Su

Weihua Guo

Donghui Yang

Dang Zeng

Tao Ye

Zhen Hu

Jibao Wu

A scroll compressor includes fixed and orbiting scrolls. The fixed scroll includes a fixed scroll end plate and a spiral fixed wrap extending from the end plate. The orbiting scroll includes an orbiting scroll end plate and an orbiting wrap extending from the end plate and engaging with the fixed wrap to form compression chambers. The fixed wrap includes a first fixed wrap portion on a radially outer side and a second fixed wrap portion on a radially inner side. The first fixed wrap portion is periodically covered by the orbiting scroll end plate and the second fixed wrap portion is always covered by the orbiting scroll end plate while the scroll compressor is operating. A sealing member is provided on one of the first fixed wrap portion and a first covering portion of the orbiting scroll end plate corresponding to the first fixed wrap portion.

Scroll compressor

Disclosed are a fluid pumping device and a horizontal compressor. The fluid pumping device comprises a pump structure in the form of an internal-meshing gear pump and is provided with first and second pump members, a pump housing structure for accommodating the pump structure, and at least two suction paths and/or at least two discharge paths. Suction and compression cavities are defined between the first and second pump members; the at least two suction paths are configured to rotate with the pump structure, and a fluid can be sucked into the suction cavity via the at least two suction paths respectively; and the at least two discharge paths are configured to rotate with the pump structure, and the compressed fluid can be discharged from the fluid pumping device via the discharge paths respectively. The fluid pumping device is assembled in the horizontal compressor.

Fluid pumping device and horizontal compressor

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. The second back pressure cavity is in communication with the second compression path by means of a second back pressure passage.

Dual-vane scroll compressor with capacity modulation

A compressor is provided and may include a shell, a main bearing housing disposed within the shell, a driveshaft, a non-orbiting scroll member, and an orbiting scroll member. The driveshaft may be supported by the main bearing housing. The non-orbiting scroll member may be coupled to the main bearing housing and may include a first lubricant supply path in fluid communication with a lubricant source. The orbiting scroll member may be rotatably coupled to the driveshaft and may be meshingly engaged with the non-orbiting scroll member. The orbiting scroll member may include a recess that is moved between a first position in fluid communication with the first lubricant supply path and a second position fluidly isolated from the first lubricant supply path.

Scroll compressor with oil management system

The present invention relates to a scroll compressor (). The scroll compressor comprises a shell (); a fixed scroll component () and a moving scroll component () arranged in the shell, wherein the fixed scroll component is fixed relative to the shell, and the moving scroll component can float in the axial direction relative to the fixed scroll component; a main bearing base () is arranged in the shell to support the moving scroll component, a back pressure cavity (B) is formed between the moving scroll component and the main bearing base and communicated with fluid of a compression cavity (C) through a communication channel (), the communication channel () is formed in the moving scroll component, and the compression cavity (C) is formed between the fixed scroll component and the moving scroll component; and valve components (A) arranged in the communication channel () are formed to respond the pressure difference between the compression cavity and the back pressure cavity so as to provide a first aperture and a second aperture, and the second aperture is smaller than the first aperture.

Scroll compressor having valve component arranged in passage of back pressure cavity and providing openings for passage of fluid

A pressure control valve () comprises a valve seat () in which is formed a valve hole (), a first valve sheet member () which covers the valve hole and is provided with a fluid passage () thereon, and a second valve sheet member () 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. Also disclosed is a scroll compressor comprising a throttle valve for preventing or weakening the return flow from the back-pressure chamber to the pressure chamber.

Pressure control valve and scroll compressor

A compressor () is provided and may include a shell (), a main bearing housing () disposed within the shell (), a driveshaft (), a non-orbiting scroll member (), and an orbiting scroll member (). The driveshaft () may be supported by the main bearing housing (). The non-orbiting scroll member () may be coupled to the main bearing housing () and may include a first lubricant supply path in fluid communication with a lubricant source. The orbiting scroll member () may be rotatably coupled to the driveshaft () and may be meshingly engaged with the non-orbiting scroll member (). The orbiting scroll member () may include a recess () that is moved between a first position in fluid communication with the first lubricant supply path and a second position fluidly isolated from the first lubricant supply path.

A scroll compressor (), comprising a fixed scroll (), a movable scroll () and a drive shaft (); the scroll compressor () further comprises a movable scroll counterweight (); the movable scroll counterweight () is configured to rotate with the drive shaft (); and the centrifugal force of the movable scroll counterweight () caused by the rotation acts on the hub () of the movable scroll (). 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.

The present invention relates to a rotor pump (), comprising: a pump body (A) capable of being rotatably driven and forming an accommodation cavity () therein; a pump wheel (A) having a main body part () capable of rotating in the accommodation cavity and a first shaft part () axially extending from the main body part; and a sealing plate () comprising an eccentric hole () 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 () 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. The rotor pump of the present invention has a simple structure, fewer components and low cost.

Rotor pump and rotary machinery comprising the same, the rotor pump including a pump body forming an accommodation cavity, a pump wheel rotating in the accommodation cavity and a sealing plate having an eccentric hole that is eccentric relative to a rotation axis of the pump wheel, where a shaft portion of the pump wheel is rotatably fitted in the eccentric hole

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Jiangsu, China

Qingfeng Sun