A system for controlling the power output of a Stirling is provided that includes a hot heat source and a cold heat sink. A control unit receives a first temperature signal representative of a measured temperature of the hot heat source and a second temperature signal representative of a measured temperature of the cold heat sink. A look-up table provides a representation of the power output as a function of the mean engine pressure, pie, and the operating frequency, , of the Stirling engine. The values of the power output in the look-up table have been determined for predefined temperatures of the hot heat source and the cold heat sink. The control unit is configured to, based on the received temperature signals, recalculate the values of the power output and update the look-up table accordingly, and to control the power output by controlling the mean engine pressure, pie, and the operating frequency, , based on the updated look-up table. A method of controlling the power output of a Stirling engine is also provided.

A system for controlling the power output of a Stirling is provided that includes a hot heat source and a cold heat sink. A control unit receives a first temperature signal representative of a measured temperature of the hot heat source and a second temperature signal representative of a measured temperature of the cold heat sink. A look-up table provides a representation of the power output as a function of the mean engine pressure, pie, and the operating frequency, , of the Stirling engine. The values of the power output in the look-up table have been determined for predefined temperatures of the hot heat source and the cold heat sink. The control unit is configured to, based on the received temperature signals, recalculate the values of the power output and update the look-up table accordingly, and to control the power output by controlling the mean engine pressure, pie, and the operating frequency, , based on the updated look-up table. A method of controlling the power output of a Stirling engine is also provided.

An alpha type Stirling engine, comprising four pistons housed in respective chambers for reciprocating movement, at least two linear motors/generators configured to cause said pistons to move in the respective chambers, each one of said pistons defining in its respective chamber a primary chamber side located on one side of the piston and a secondary chamber side located on the other side of the piston. The Stirling engine comprises two primary gas channels, each one fluidly interconnecting two primary chamber sides. The Stirling engine also comprises two secondary gas channels, each one fluidly interconnecting two secondary chamber sides in different chamber combinations than the interconnections achieved by the primary gas channels.

An alpha type Stirling engine, comprising four pistons housed in respective chambers for reciprocating movement, at least two linear motors/generators configured to cause said pistons to move in the respective chambers, each one of said pistons defining in its respective chamber a primary chamber side located on one side of the piston and a secondary chamber side located on the other side of the piston. The Stirling engine comprises two primary gas channels, each one fluidly interconnecting two primary chamber sides. The Stirling engine also comprises two secondary gas channels, each one fluidly interconnecting two secondary chamber sides in different chamber combinations than the interconnections achieved by the primary gas channels.

The present application relates to a single cylinder internally heated Stirling engine, comprising: a cylinder assembly comprising a hot side cylinder and a cold side cylinder, which are joined together to form a closed single cylinder, and a heat insulation ring is provided between them; a first heat exchanger arranged inside the hot side cylinder and in fluid communication with an external heat source, used to heat the working gas in the hot side cylinder; a second heat exchanger arranged inside the cold side cylinder and in fluid communication with an external cold source, used to cool the working gas in the cold side cylinder; a piston, installed in the cylinder assembly and provided with a gas-flow channel and a gas valve; and a piston rod, one end fixed to the piston and the other end connected to a transmission mechanism located outside the cylinder.

The present application relates to a single cylinder internally heated Stirling engine, comprising: a cylinder assembly comprising a hot side cylinder and a cold side cylinder, which are joined together to form a closed single cylinder, and a heat insulation ring is provided between them; a first heat exchanger arranged inside the hot side cylinder and in fluid communication with an external heat source, used to heat the working gas in the hot side cylinder; a second heat exchanger arranged inside the cold side cylinder and in fluid communication with an external cold source, used to cool the working gas in the cold side cylinder; a piston, installed in the cylinder assembly and provided with a gas-flow channel and a gas valve; and a piston rod, one end fixed to the piston and the other end connected to a transmission mechanism located outside the cylinder.

The present application relates to a single cylinder internally heated Stirling engine, comprising: a cylinder assembly comprising a hot side cylinder and a cold side cylinder, which are joined together to form a closed single cylinder, and a heat insulation ring is provided between them; a first heat exchanger arranged inside the hot side cylinder and in fluid communication with an external heat source, used to heat the working gas in the hot side cylinder; a second heat exchanger arranged inside the cold side cylinder and in fluid communication with an external cold source, used to cool the working gas in the cold side cylinder; a piston, installed in the cylinder assembly and provided with a gas-flow channel and a gas valve; and a piston rod, one end fixed to the piston and the other end connected to a transmission mechanism located outside the cylinder.

The present application relates to a single cylinder internally heated Stirling engine, comprising: a cylinder assembly comprising a hot side cylinder and a cold side cylinder, which are joined together to form a closed single cylinder, and a heat insulation ring is provided between them; a first heat exchanger arranged inside the hot side cylinder and in fluid communication with an external heat source, used to heat the working gas in the hot side cylinder; a second heat exchanger arranged inside the cold side cylinder and in fluid communication with an external cold source, used to cool the working gas in the cold side cylinder; a piston, installed in the cylinder assembly and provided with a gas-flow channel and a gas valve; and a piston rod, one end fixed to the piston and the other end connected to a transmission mechanism located outside the cylinder.