An air conditioner includes: a turbo compressor that compresses a heat medium; a heat exchanger that exchanges heat of the heat medium supplied from the turbo compressor with an atmosphere; and a supply flow path and a discharge flow path that connect the turbo compressor and the heat exchanger. At least one of the supply flow path and the discharge flow path includes piping, and the piping includes a gas barrier layer that covers a surface of a synthetic resin.

An air conditioner includes: a turbo compressor that compresses a heat medium; a heat exchanger that exchanges heat of the heat medium supplied from the turbo compressor with an atmosphere; and a supply flow path and a discharge flow path that connect the turbo compressor and the heat exchanger. At least one of the supply flow path and the discharge flow path includes piping, and the piping includes a gas barrier layer that covers a surface of a synthetic resin.

A method for minimizing the time to form a polyethylene pipe e joint comprises the steps of performing a butt-fusion process until the beginning of the full cooling cycle; holding an interfacial pressure through a minimum cool time calculated using a formula based on the wall thickness of the pipe e, the initial bulk temperature of the pipe e, and a heat soak time; and releasing the interfacial pressure from the fused pipe e joint at the end of the calculated minimum cool time.

A method for minimizing the time to form a polyethylene pipe e joint comprises the steps of performing a butt-fusion process until the beginning of the full cooling cycle; holding an interfacial pressure through a minimum cool time calculated using a formula based on the wall thickness of the pipe e, the initial bulk temperature of the pipe e, and a heat soak time; and releasing the interfacial pressure from the fused pipe e joint at the end of the calculated minimum cool time.

An assembly includes at least one member having first and second ends. A dual metal adapter for connecting to the at least one member includes an inner tube for receiving and contacting the first end of the at least one member and being formed from a first metal having a first resistivity. An outer tube extends over the inner tube and is secured thereto. The outer tube is formed from a second metal having a second resistivity greater than the first resistivity. The first end of the at least one member is metallurgically bonded to the inner tube.

An assembly includes at least one member having first and second ends. A dual metal adapter for connecting to the at least one member includes an inner tube for receiving and contacting the first end of the at least one member and being formed from a first metal having a first resistivity. An outer tube extends over the inner tube and is secured thereto. The outer tube is formed from a second metal having a second resistivity greater than the first resistivity. The first end of the at least one member is metallurgically bonded to the inner tube.

An example coupling for an electric vehicle battery pack includes an attachment member configured to connect to a cold plate, a fluid inlet extending from the attachment member, and a fluid outlet extending from the attachment member.

An example coupling for an electric vehicle battery pack includes an attachment member configured to connect to a cold plate, a fluid inlet extending from the attachment member, and a fluid outlet extending from the attachment member.

A tube joint includes a first member and a second member. The first member has a bore defining an inner diameter. The second member has a first outer surface defining a first outer diameter with two or more helical protrusions extending radially from the first outer diameter. The two or more helical protrusions collectively define a second outer diameter. The second outer diameter of the second member is larger than the inner diameter of the first member by an amount sufficient to center and retain the second member within the bore of the first member. Brazed tube joint assemblies and methods of making brazed tube joints are also described.

A tube joint includes a first member and a second member. The first member has a bore defining an inner diameter. The second member has a first outer surface defining a first outer diameter with two or more helical protrusions extending radially from the first outer diameter. The two or more helical protrusions collectively define a second outer diameter. The second outer diameter of the second member is larger than the inner diameter of the first member by an amount sufficient to center and retain the second member within the bore of the first member. Brazed tube joint assemblies and methods of making brazed tube joints are also described.