The invention relates to a method for operating a compressor (100), wherein an ionic liquid (a) is used as an operating liquid, and wherein two different materials (c, d) of the compressor (100) are brought in contact with the ionic liquid (b) and form an electrochemical element. In order to partially balance a voltage (U) of the electrochemical element at the compressor (110), a counter voltage (U.sub.G) is applied. The invention further relates to such a compressor (100).

An actuating and sensing module is provided. The actuating and sensing module includes a main body, a particle monitoring base, a plurality of actuators and a plurality of sensors. The main body includes a first separating chamber having a first compartment and a second compartment and a second separating chamber having a third compartment and a fourth compartment. The plurality of actuators include a first actuator disposed between the second compartment and the first partition and a second actuator disposed within the accommodation recess. The plurality of sensors include a first sensor, a second sensor and a third sensor. The first sensor is disposed in the first compartment for monitoring the gas. The second sensor is disposed in the third compartment for monitoring the gas in the third compartment. The third sensor is located in the monitoring channel for monitoring the gas in the monitoring channel.

An actuating and sensing module is provided. The actuating and sensing module includes a main body, a particle monitoring base, a plurality of actuators and a plurality of sensors. The main body includes a first separating chamber having a first compartment and a second compartment and a second separating chamber having a third compartment and a fourth compartment. The plurality of actuators include a first actuator disposed between the second compartment and the first partition and a second actuator disposed within the accommodation recess. The plurality of sensors include a first sensor, a second sensor and a third sensor. The first sensor is disposed in the first compartment for monitoring the gas. The second sensor is disposed in the third compartment for monitoring the gas in the third compartment. The third sensor is located in the monitoring channel for monitoring the gas in the monitoring channel.

A reciprocating compressor including a compressor frame including a drive shaft received therein, a rotary to linear motion converter coupling the drive shaft and a first end of a piston rod, a piston coupled to a second end of the piston rod, a compression cylinder in which the piston is received, an inlet valve coupled to the compression cylinder and a discharge valve coupled to the compression cylinder, a pressure casing encasing the compressor frame and the rotary to linear motion converter, a motor coupled to the drive shaft, wherein the motor is located external to the pressure casing, and a mechanical seal coupled between the drive shaft and the pressure casing.

A reciprocating compressor including a compressor frame including a drive shaft received therein, a rotary to linear motion converter coupling the drive shaft and a first end of a piston rod, a piston coupled to a second end of the piston rod, a compression cylinder in which the piston is received, an inlet valve coupled to the compression cylinder and a discharge valve coupled to the compression cylinder, a pressure casing encasing the compressor frame and the rotary to linear motion converter, a motor coupled to the drive shaft, wherein the motor is located external to the pressure casing, and a mechanical seal coupled between the drive shaft and the pressure casing.

The present relates to a Metal hydride compressor control method for generating a variable output pressure P.sub._desired_outPut, comprising a first step of inflowing gaseous hydrogen into a metal hydride compartment at a constant temperature and then stopping the gaseous hydrogen inflow, a second step of heating the metal hydride to a predetermined temperature which corresponds to a temperature which passes through the + phase at the desired output pressure P.sub._desired_output, a third step of opening the output connection of the compressor and keeping it at a constant pressure by regulating the temperature to keep a constant output pressure P.sub._desired_outPut until the system completely leaves the + phase.

A linear compressor includes a shell that includes a refrigerant suction part configured to suction refrigerant, a cylinder located in the shell, a piston configured to reciprocate within the cylinder in which the piston includes a piston body and a piston flange, and a suction muffler through which suctioned refrigerant passes in which the suction muffler includes a first muffler disposed in the piston body. The first muffler includes a first muffler body that defines a refrigerant passage and that extends in an axial direction, and a first muffler flange that extends from the first muffler body in a radial direction, that is configured to couple to the piston flange, and that defines a flange communication hole.

A linear compressor includes a shell that includes a refrigerant suction part configured to suction refrigerant, a cylinder located in the shell, a piston configured to reciprocate within the cylinder in which the piston includes a piston body and a piston flange, and a suction muffler through which suctioned refrigerant passes in which the suction muffler includes a first muffler disposed in the piston body. The first muffler includes a first muffler body that defines a refrigerant passage and that extends in an axial direction, and a first muffler flange that extends from the first muffler body in a radial direction, that is configured to couple to the piston flange, and that defines a flange communication hole.

A cryopump includes a cryopump housing and a water absorbing layer mounted on an outer side of the cryopump housing.

A cryopump includes a cryopump housing and a water absorbing layer mounted on an outer side of the cryopump housing.