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
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.
대표청구항▼
1. A rocking beam drive mechanism for a machine comprising: at least one rocking beam having a first end pivot, a second end pivot, a connecting pivot and a rocker pivot, and the rocking beam oscillates rotatably about the rocker pivot;at least two cylinders;at least two pistons, each piston housed
1. A rocking beam drive mechanism for a machine comprising: at least one rocking beam having a first end pivot, a second end pivot, a connecting pivot and a rocker pivot, and the rocking beam oscillates rotatably about the rocker pivot;at least two cylinders;at least two pistons, each piston housed within one of the at least two cylinders whereby each piston is capable of reciprocating within one of the at least two cylinders;at least two coupling assemblies, each coupling assembly having a proximal end and a distal end, each proximal end being connected to one of the at least two pistons and each distal end being connected to the rocking beam by one of the first end pivot or second end pivot;a crankshaft that rotates;at least one connecting rod having a connecting rod first end and a connecting rod second end, the at least one connecting rod connected at the connecting rod first end to the connecting pivot of the at least one rocking beam and the connecting rod second end connecting to the crankshaft to convert the oscillating rotation of the at least one rocking beam to rotary motion of the crankshaft;a workspace defined in part by the at least two cylinders, the at least two pistons, and the proximal ends of the at least two coupling assemblies, the workspace filled with a working gas;a crankcase containing the at least one rocking beam, the crankshaft, and the distal ends of the at least two coupling assemblies, the crankcase being filled with crankcase gas; andan airlock located between the workspace and the crankcase, the airlock containing working gas, the airlock maintaining a constant volume and wherein portions of each of the at least two coupling assemblies pass through the airlock. 2. The rocking beam drive mechanism as set forth in claim 1, further comprising a lubricating fluid pump, a lubricating fluid, and fluid lines, the lubricating fluid pump providing lubricating fluid to the rocker pivot, each end pivot and at least one coupling assembly via the fluid lines, wherein the crankshaft directly drives the lubricating fluid pump. 3. The rocking beam drive mechanism as set forth in claim 1, wherein the proximal ends of the at least two coupling assemblies comprise piston rods, each piston rod having a first end connected to one of the at least two pistons and a second end connected via the proximal ends of the at least two coupling assemblies to the at least one rocking beam for translating linear motion to oscillating rotation of the rocking beam. 4. An external combustion engine comprising: at least one rocking drive mechanisms comprising: a rocking beam having a rocker pivot;at least two cylinders;at least two pistons, the pistons of the at least two pistons each housed within a respective cylinder of the at least two cylinders; andtwo coupling assemblies having a proximal end and a distal end, the proximal end being connected to the piston and the distal end being connected to the rocking beam by an end pivot;a crankcase housing containing the rocking beam and a first portion of the two coupling assemblies, the crankcase housing being filled with crankcase gas, the crankcase gas having a crankcase pressure;a crankshaft coupled to the rocking beam;a working space housing containing the at least two cylinders, the at least two pistons and a second portion of the two coupling assemblies, the working space housing filled with a working gas;an airlock space separating the working space housing from the crankcase housing, the airlock space filled with working gas, the working gas at an airlock pressure, the airlock pressure being different than the crankcase pressure;a heating element comprising a burner having at least one burner head for igniting and maintaining a heating flame in a combustion chamber adjacent to at least one heater head; andan electronic control unit managing the heating element according to operational data of the engine obtained from at least one of the rocking drive mechanisms, lubricating fluid pump, the crankcase, the working space, crankshaft, heating element and the airlock. 5. The external combustion engine as set forth in claim 4, wherein the burner comprises the at least one burner head igniting and maintaining a single flame for heating the at least one heater heads. 6. The external combustion engine as set forth in claim 4, further comprising at least one of a cooling gas and air input wherein the electronic control unit measures a temperature at the at least one heater head and supplies the at least one of a cooling gas and air input to manage the temperature of the heater head. 7. The external combustion engine as set forth in claim 6, further comprising a single blower controlled according to the electronic control unit to provide the at least one of a cooling gas and air input to the engine. 8. A Stirling engine comprising: at least two heater heads, each heater head characterized by a heater head axis;at least two pistons, each piston located within one of the at least two heater heads and each piston reciprocating in one of the at least two heater heads along the heater head axis at least two piston rods, each piston rod having a first end and a second end, the first end fixedly mounted to one of the at least two pistons; at least two link rods, each link rod having a proximal end and a distal end, each proximal end rotatably connected to the second end of one of the at least two piston rods; a crankshaft;at least one rocking beam having two end pivots, one end pivot near each end of the beam, each end pivot connected to the distal end of one of the at least two link rods, the at least one rocking beam mechanically connected to the crankshaft, the at least one rocking beam located between the crankshaft and the at least two pistons, and the oscillating rotation of the at least one rocking beam being converted to reciprocal motion of the at least two pistons via the at least two link rods and the at least two piston rods;a workspace defined in part by the at least two heater heads, the at least two pistons, and first portions of the at least two piston rods, the workspace filled with a working gas;a crankcase containing the at least two link rods, the at least one rocking beam, and the crankshaft, the crankcase being filled with crankcase gas; andan airlock located between the workspace and the crankcase, the airlock defined by an airlock housing and second portions of the at least two piston rods, the airlock containing working gas, the airlock maintaining a constant volume and wherein the at least two piston rods extend from the workspace, through the airlock and into the crankcase. 9. The Stirling cycle machine as set forth in claim 8, further comprising an airlock pressure regulator connected between the crankcase and one of the airlock space and the working space. 10. The Stirling cycle machine as set forth in claim 8, wherein the airlock pressure regulator is a bidirectional regulator for maintaining a predetermined pressure differential between the crankcase and one of the airlock space and the working space. 11. The Stirling engine set forth in claim 8, further comprising two rolling diaphragm seals between the airlock and the crankcase, the rolling diaphragm seals sealably connected to the second portions of each of the at least two piston rods. 12. The Stirling engine set forth in claim 11, the two rolling diaphragm seals comprise non-woven fabric. 13. The Stirling engine set forth in claim 8, further comprising four piston rod seals mounted in the airlock housing and each piston rod seal placed against one of the four piston rods to prevent gas in the workspace from escaping into the airlock. 14. The Stirling engine set forth in claim 13, wherein each piston rod seal comprises a spring energized lip seal. 15. The Stirling engine set forth in claim 13, wherein each piston rod seal comprises a clearance seal. 16. The Stirling engine set forth in claim 8, further comprising a small opening fluidically connecting the workspace and the airlock, the working gas of the airlock having an airlock pressure, the working gas of the workspace having a workspace pressure, the workspace pressure oscillating about a mean pressure and the small opening configured to substantially maintain the airlock pressure at the mean pressure.
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