Carrier Corporation

Amphenol Corporation

Jun Cao

Adrian Green

Kent Harold Lambie

John Mark Pahulje

Kai Deng

Vishnu Mohan Sishtla

Shuguang Zhang

Xi Feng

Hao Zhao

Huanan Li

Jiedong Li

Chong Cao

Shuang Lu

Yuchang Shac

Yuchang Shao

A winding method for radial magnetic bearing stator, a radial magnetic bearing stator and a radial magnetic bearing. The winding method for radial magnetic bearing stator includes: S, sleeving a first formed stator winding on a first stator tooth of a stator core along a radial outward direction; S, sleeving a second formed stator winding on a second stator tooth of the stator core along a radial outward direction; S, a first coil of the first formed stator winding is connected in series with a second coil of the second formed stator winding; the first stator tooth is adjacent to the second stator tooth, and a stator slot is formed therebetween; and the coil number of the first formed stator winding is larger than that of the second formed stator winding.

Winding method for radial magnetic bearing stator, a radial magnetic bearing stator and a radial magnetic bearing

A vapor compression system and method for operating the vapor compression system are provided. The vapor compression system includes a first compressor, a second compressor, a condenser, and at least one check valve disposed between the first compressor and the condenser. The method provides for the transmitting of a shutdown command to at least one of the first compressor and the second compressor, at least one of the first compressor and the second compressor including a rotating shaft and a magnetic bearing, the magnetic bearing having an active mode and an inactive mode, the magnetic bearing levitating the rotating shaft in the active mode. The method further provides for the monitoring of at least one of a rotational speed of the rotating shaft and a differential pressure over the check valve for a preset time, wherein the magnetic bearing remains in the active mode at least during the preset time.

Magnetic bearing compressor protection

An air conditioning system includes a main circuit having a multi-stage compressor, a condenser, a throttling element and an evaporator connected by pipelines; and a cooling branch, the inlet of which is connected to the main circuit between the condenser and the throttling element, and the outlet of which is connected to at least one of the first-stage suction port and the intermediate-stage suction port of the multi-stage compressor, wherein refrigerant from the cooling branch flows through the drive motor of the multi-stage compressor, and a regulating valve for controlling the opening of the cooling branch is provided on the cooling branch; and a control module that controls the opening of the regulating valve on the cooling branch based on the temperature of the outlet downstream of the drive motor on the cooling branch and the intermediate suction pressure of the intermediate-stage suction port of the multi-stage compressor.

Air conditioning system and cooling method for drive motor thereof

A control method for a centrifugal compressor and an air conditioning system. The control method for the centrifugal compressor includes: S, when an inlet opening of the centrifugal compressor is below a first preset value, shutting down a drive motor of the centrifugal compressor; or S, when the inlet opening of the centrifugal compressor is not below the first preset value, performing the following operations in a preset order: decreasing the inlet opening of the centrifugal compressor, and increasing a rotate speed of the centrifugal compressor.

Control method for centrifugal compressor and air conditioning system

A centrifugal compressor and a refrigerating device. The compressor includes: a shell, which has a fluid inlet at a first position of the shell, and a fluid outlet at a second position of the shell, a motor assembly, which is arranged in the shell and includes a stator and a rotor, the rotor including a vertically arranged rotor shaft, and the rotor shaft including a lower end and an upper end; a centrifugal compression mechanism, an impeller of which is connected with the rotor shaft so as to be driven by the motor assembly; and a guide member, which is located above the centrifugal compression mechanism, and which defines a flow passage alone or together with a top part of the shell.

Centrifugal compressor and refrigerating device

A ruggedized electrical receptacle that has a shell configured to receive an interface of a mating connector and a contact subassembly received in the shell. The contact subassembly includes a contact printed circuit board, interface contacts coupled to one face of the contact printed circuit board, termination contacts coupled to the other face thereof, and an overmold overmolded on the board. The overmold surrounds the contact printed circuit board such that free ends of the interface contacts are exposed and tail ends of the termination contacts are exposed. An internal sealing member is disposed between an outer surface of the overmold and the inner surface of the shell, thereby creating a seal therebetween.

Ruggedized electrical receptacle

A ruggedized electrical connector that includes a shell that has an interface front side and an opposite rear side for mounting on a printed circuit board. An interface sealing member is coupled to the interface front side of the shell. The interface sealing member substantially covers the interface front side of the shell for preventing contaminants from passing externally around the shell. A contact subassembly is received in the shell and includes a plurality of contacts and a housing supporting the contacts. Each of the contacts has an interface end and a tail end. The interface ends are arranged in a mating platform extending from the housing toward the front side of said shell for engaging a mating connector. An internal sealing member is coupled around the housing for preventing contaminants from passing internally though the shell. A rear shield is coupled to the rear side of the housing.

Growing community of inventors

Shanghai, China

Jun Cao