A thermal management system and method includes a conduit assembly having a first conduit and a second conduit fluidly separate from the first conduit. The first conduit is fluidly coupled with and extends between a source of a first fluid and a destination for the first fluid. The second conduit directs a second fluid between an inlet and an outlet. The second fluid is configured to exchange heat with the first fluid within the conduit assembly. A control assembly includes one or more control elements that are configured to control an amount of the second fluid that is directed through the second conduit. One or more processors control operation of the control assembly based on one or more of a temperature of the first fluid or a temperature of the second fluid.

Provided is a motor-integrated fluid machine that has improved performance and reliability by efficiently cooling a fluid machine body and a motor without increasing an installation space. The present invention is characterized by being provided with: a fluid machine unit that compresses or expands a fluid; a motor unit that has a drive shaft connected to the fluid machine unit; and a cooling fan that cools the motor unit and the fluid machine unit by sucking cooling air from the motor unit side and that is connected to the drive shaft at the side opposed to that connected to the fluid machine unit, wherein between the motor unit and the cooling fan, the minimum sectional area of a cooling air passage from the outside in the radial direction toward the drive shaft is larger than that of a cooling air passage from the motor unit side toward the cooling fan.

Provided is a motor-integrated fluid machine that has improved performance and reliability by efficiently cooling a fluid machine body and a motor without increasing an installation space. The present invention is characterized by being provided with: a fluid machine unit that compresses or expands a fluid; a motor unit that has a drive shaft connected to the fluid machine unit; and a cooling fan that cools the motor unit and the fluid machine unit by sucking cooling air from the motor unit side and that is connected to the drive shaft at the side opposed to that connected to the fluid machine unit, wherein between the motor unit and the cooling fan, the minimum sectional area of a cooling air passage from the outside in the radial direction toward the drive shaft is larger than that of a cooling air passage from the motor unit side toward the cooling fan.

A compressor temperature control system and method for an aircraft air cycle machine is presented. The system prevents overheating of the compressor using a low limit valve positioned between a turbine outlet and a bleed air source. The low limit valve directs the air to an air cycle machine, or bypasses the machine, in regards at least in part to the air temperature measured in the cabin supply duct.

A connector (24) and method of connecting a compressor assembly (10) that increases the pressure of a fluid are described. The compressor assembly (10) includes cylinders (12a,b), crank shaft housings (18a,b), and a motor housing (22). The connector (24) is disposed between the cylinders (12a,b) and the crank shaft housing (18a,b) and configured to engage the cylinders (12a,b) such that vibration during operation of the compressor assembly is reduced through the placement of the connector (24) corresponding to a center of gravity of the compressor assembly (10). The connector may also be used by the compressor assembly as a heat sink, inlet, mount, filter, and/or to provide other functions that improve the operation of compressor assembly.

A connector (24) and method of connecting a compressor assembly (10) that increases the pressure of a fluid are described. The compressor assembly (10) includes cylinders (12a,b), crank shaft housings (18a,b), and a motor housing (22). The connector (24) is disposed between the cylinders (12a,b) and the crank shaft housing (18a,b) and configured to engage the cylinders (12a,b) such that vibration during operation of the compressor assembly is reduced through the placement of the connector (24) corresponding to a center of gravity of the compressor assembly (10). The connector may also be used by the compressor assembly as a heat sink, inlet, mount, filter, and/or to provide other functions that improve the operation of compressor assembly.

A linear compressor is provided. The linear compressor includes a shell, a frame disposed in the shell, the frame including a body portion and a first flange portion extending radially from a front of the body portion, a cylinder fixed to the body portion, and a piston disposed in the cylinder and configured to reciprocate axially. The first flange portion includes a hole penetrating a front surface and an inner surface of the first flange portion.

A linear compressor is provided. The linear compressor includes a shell, a frame disposed in the shell, the frame including a body portion and a first flange portion extending radially from a front of the body portion, a cylinder fixed to the body portion, and a piston disposed in the cylinder and configured to reciprocate axially. The first flange portion includes a hole penetrating a front surface and an inner surface of the first flange portion.

A scroll compressor includes a shell that is cylindrical, a fixed scroll fixed to an inner wall of the shell, an orbiting scroll that faces the fixed scroll, a frame fixed to the inner wall of the shell and that supports the orbiting scroll, and a heat source device provided on an outside of the shell and between the fixed scroll and the frame and configured to heat or cool the shell from the outside.

A scroll compressor includes a shell that is cylindrical, a fixed scroll fixed to an inner wall of the shell, an orbiting scroll that faces the fixed scroll, a frame fixed to the inner wall of the shell and that supports the orbiting scroll, and a heat source device provided on an outside of the shell and between the fixed scroll and the frame and configured to heat or cool the shell from the outside.