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Stirling Engine with Rhombic Drive  (highspeed)
Stirling Engine with Rhombic Drive (highspeed)
::2014/04/18::
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2
Stirling Engine with Rhombic Drive Part 1
Stirling Engine with Rhombic Drive Part 1
::2008/09/05::
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3
Stirling engine  with Rhombic drive
Stirling engine with Rhombic drive
::2014/11/26::
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4
Rhombic animation
Rhombic animation
::2010/08/14::
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5
Stirling Engine with Rhombic Drive
Stirling Engine with Rhombic Drive
::2014/04/18::
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6
beta rhombic drive twin crank pressurised hot air engine
beta rhombic drive twin crank pressurised hot air engine
::2013/08/06::
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7
Rhombic drive VS. My 105° "L" yoke
Rhombic drive VS. My 105° "L" yoke
::2014/04/11::
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8
RHOMBIC DRIVE STIRLING CYCLE ENGINE PART TWO
RHOMBIC DRIVE STIRLING CYCLE ENGINE PART TWO
::2008/09/07::
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9
Homemade rhombic drive model
Homemade rhombic drive model
::2014/08/24::
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10
Rhombic Drive Stirling Engine by William Kidd
Rhombic Drive Stirling Engine by William Kidd
::2013/03/09::
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11
Rhombic Drive Stirling Engine,    10cc Pressurized,  Part 2
Rhombic Drive Stirling Engine, 10cc Pressurized, Part 2
::2009/12/05::
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12
Rhombic Drive Stirling Engine Part 4
Rhombic Drive Stirling Engine Part 4
::2008/10/27::
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13
Stirling Engine with Rhombic Drive details
Stirling Engine with Rhombic Drive details
::2014/03/05::
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14
Rhombic Drive Stirling Engine Part 3
Rhombic Drive Stirling Engine Part 3
::2008/09/13::
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15
Rhombic Drive Stirling Engine, 10cc Pressurized, Part 1
Rhombic Drive Stirling Engine, 10cc Pressurized, Part 1
::2009/12/03::
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16
Pallarpad
Pallarpad's concept vs Rhombic drive
::2014/05/30::
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17
Stirling Engine with Rhombic Drive
Stirling Engine with Rhombic Drive
::2013/11/09::
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18
Stirling engine rhombic drive
Stirling engine rhombic drive
::2015/02/07::
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19
Stirling engine with rhombic drive
Stirling engine with rhombic drive
::2014/02/24::
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20
RHOMBIC DRIVE STIRLING ENGINE, PART FIVE
RHOMBIC DRIVE STIRLING ENGINE, PART FIVE
::2008/11/08::
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21
Rhombic drive simulation
Rhombic drive simulation
::2007/10/13::
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22
Animated Beta Type Stirling, Rhombic Drive (CatiaV5)
Animated Beta Type Stirling, Rhombic Drive (CatiaV5)
::2013/06/16::
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23
Rhombic drive Stirling engine - moteur Stirling à embiellage rhombique
Rhombic drive Stirling engine - moteur Stirling à embiellage rhombique
::2010/04/24::
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24
Stirling Beta - Rhombic drive
Stirling Beta - Rhombic drive
::2010/04/21::
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25
Asymmetric Rhombic Drive Stirling Engine [PEACE Lab. NCKU]
Asymmetric Rhombic Drive Stirling Engine [PEACE Lab. NCKU]
::2008/10/21::
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26
beta stirling engine simulation with rhombic drive
beta stirling engine simulation with rhombic drive
::2012/01/11::
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27
Rhombic Drive for Stirling Engine
Rhombic Drive for Stirling Engine
::2009/07/13::
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28
Stirling engine (rhombic drive Beta configuration)
Stirling engine (rhombic drive Beta configuration)
::2012/06/03::
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29
Rhombic Drive for Speed Governor
Rhombic Drive for Speed Governor
::2009/07/13::
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30
Jellyfish test - rhombic drive first movement.
Jellyfish test - rhombic drive first movement.
::2015/03/04::
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31
Ross 11cc beta rhombic drive hot air engine
Ross 11cc beta rhombic drive hot air engine
::2013/08/01::
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32
Rhombic Drive Stirling Engine Part 3
Rhombic Drive Stirling Engine Part 3
::2013/07/30::
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33
#3 Stirling 2 - Rhombic Model
#3 Stirling 2 - Rhombic Model
::2009/02/10::
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34
stirling engine twin 3  スターリングエンジン
stirling engine twin 3  スターリングエンジン
::2014/12/12::
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35
Rhombic Diamond - Tutorial
Rhombic Diamond - Tutorial
::2014/04/07::
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36
Demonstration of a wood burning Stirling engine.
Demonstration of a wood burning Stirling engine.
::2013/09/19::
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37
Stirling engine with ball joint piston - invention
Stirling engine with ball joint piston - invention
::2009/10/02::
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38
Solar Stirling Engine
Solar Stirling Engine
::2012/10/25::
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39
Silnik Stirlinga typu rhombic - prezentacja
Silnik Stirlinga typu rhombic - prezentacja
::2014/04/20::
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40
Rhombic Beta Stirling v2 (in design)
Rhombic Beta Stirling v2 (in design)
::2008/11/26::
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41
Stirling engine 001
Stirling engine 001
::2013/03/25::
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42
Bees with PhDs
Bees with PhDs
::2011/08/08::
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43
Sterling Engine
Sterling Engine
::2009/04/23::
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44
Solar Stirling Motor Works in all condition. In extreme hot or cold without any problem
Solar Stirling Motor Works in all condition. In extreme hot or cold without any problem
::2013/07/19::
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45
speed testing of stirling engine A-03 (no load)
speed testing of stirling engine A-03 (no load)
::2012/08/12::
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46
NiteCore MT2A
NiteCore MT2A
::2013/11/20::
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47
Stirling Engine ~Mach II~
Stirling Engine ~Mach II~
::2013/03/10::
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48
Dos Mejorado
Dos Mejorado
::2013/03/26::
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49
use and repair stirling engine no02 part2 ----  user
use and repair stirling engine no02 part2 ---- user's guide video
::2009/08/31::
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50
engr baltazar
engr baltazar's turn
::2009/07/22::
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From Wikipedia, the free encyclopedia
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Cut away diagram of a Rhombic Drive Beta Stirling Engine Design
Pink - Hot cylinder wall, Dark grey - Cold cylinder wall (with coolant inlet and outlet pipes in Yellow), Dark Green - Thermal insulation separating the two cylinder ends, Light Green - Displacer piston, Dark Blue - Power piston, Light Blue - Flywheels,
Not Shown: external heat-source, and external heat-sinks. In this design the Displacer piston is used without a regenerator.

The rhombic drive is a specific method of transferring mechanical energy, or work, used when a single cylinder is used for two separately oscillating pistons.

History[edit]

It was originally developed around 1900 for the twin-cylinder Lanchester car engine where it allowed perfect balancing of the inertial forces on both pistons.  A current example of its use is on beta type-Stirling engines; the drive's complexity and tight tolerances, causing a high cost of manufacture, is a hurdle for the widespread usage of this drive.

Operation[edit]

Schematic of a rhombic drive stirling engine in operation.

In its simplest form, the drive utilizes a jointed rhomboid to convert linear work from a reciprocating piston to rotational work.   The connecting rod of the piston is rigid as opposed to a common reciprocating engine which directly connects the piston to the crankshaft with a flexible joint in the piston. Instead, the rod connects to one corner of a rhombus.   When force is applied to the piston, it pushes down; at the same time, the outer corners of the rhomboid push out. They push on two cranks/flywheels which cause them to rotate, each in opposite directions. As the wheels rotate the rhombus progresses its change of shape from being flattened in the direction of the piston axis at top dead centre to being flattened in the perpendicular direction to the piston axis at bottom dead centre.

In the pictured example the left crank/flywheel turns clockwise and the right crank/flywheel anticlockwise. They turn at the same angular velocity and this can be reinforced by intermeshing them as gear wheels.

References[edit]

See also[edit]


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