Systems provide and methods utilize a multi-bar linkage in conjunction with an actuator to provide mechanical advantage which increases as a control surface moves towards the extremes of its operating envelope.

Systems provide and methods utilize a multi-bar linkage in conjunction with an actuator to provide mechanical advantage which increases as a control surface moves towards the extremes of its operating envelope.

The transmission member moves in a longitudinal direction of the input member to adjust a line b connecting an input central line (A) to an output central line (B) of the output shaft and a line a connecting a rotating central line (C) of the rotation shaft to the output central line (B) of the output shaft so that the lines a and b have the same length or lengths different from each other, thereby changing the rotational force of the input member to transmit the changed rotational force to the output member or transmitting the rotational force to the output member as it is.

The transmission member moves in a longitudinal direction of the input member to adjust a line b connecting an input central line (A) to an output central line (B) of the output shaft and a line a connecting a rotating central line (C) of the rotation shaft to the output central line (B) of the output shaft so that the lines a and b have the same length or lengths different from each other, thereby changing the rotational force of the input member to transmit the changed rotational force to the output member or transmitting the rotational force to the output member as it is.

A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.

A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.

A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.

A Stirling cycle machine. The machine includes at least one rocking drive mechanism which includes: a rocking beam having a rocker pivot, at least one cylinder and at least one piston. The piston is housed within a respective cylinder and is capable of substantially linearly reciprocating within the respective cylinder. Also, the drive mechanism includes at least one coupling assembly having a proximal end and a distal end. The linear motion of the piston is converted to rotary motion of the rocking beam. Also, a crankcase housing the rocking beam and housing a first portion of the coupling assembly is included. The machine also includes a working space housing the at least one cylinder, the at least one piston and a second portion of the coupling assembly. An airlock is included between the workspace and the crankcase and a seal is included for sealing the workspace from the airlock and crankcase. A burner and burner control system is also included for heating the machine and controlling ignition and combustion in the burner.

The present application is directed to a selectively deployable fin system which includes at least one housing positioned within a body of a standup paddleboard, the housing defining at least one housing passage therein, at least one actuator is positioned within the housing. The actuator is configured to be operable by a user positioned on the standup paddleboard or similar watercraft during use. At least one linkage system, in communication with the actuator, is positioned within the housing. In addition, at least one fin is in communication with the actuator via the linkage device. The fin is configured to be selectively positioned within the housing in a retracted configuration and selectively extending from the housing in a deployed configuration.

The present application is directed to a selectively deployable fin system which includes at least one housing positioned within a body of a standup paddleboard, the housing defining at least one housing passage therein, at least one actuator is positioned within the housing. The actuator is configured to be operable by a user positioned on the standup paddleboard or similar watercraft during use. At least one linkage system, in communication with the actuator, is positioned within the housing. In addition, at least one fin is in communication with the actuator via the linkage device. The fin is configured to be selectively positioned within the housing in a retracted configuration and selectively extending from the housing in a deployed configuration.