#3 Stirling 2 - Rhombic Model

Channel: PulseFuelNerd   |   2009/02/10
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#3 Stirling 2 - Rhombic Model
#3 Stirling 2 - Rhombic Model
::2009/02/10::
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Rhombic animation
Rhombic animation
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Rhombic Drive Stirling Engine, 10cc Pressurized, Part 1
Rhombic Drive Stirling Engine, 10cc Pressurized, Part 1
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Stirling engine with rhombic drive
Stirling engine with rhombic drive
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Stirling Engine with Rhombic Drive Part 1
Stirling Engine with Rhombic Drive Part 1
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RHOMBIC DRIVE STIRLING CYCLE ENGINE PART TWO
RHOMBIC DRIVE STIRLING CYCLE ENGINE PART TWO
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Rhombic Drive Stirling Engine Part 3
Rhombic Drive Stirling Engine Part 3
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Rhombic Drive Stirling Engine Part 4
Rhombic Drive Stirling Engine Part 4
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Rhombic drive VS. My 105° "L" yoke
Rhombic drive VS. My 105° "L" yoke
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RHOMBIC DRIVE STIRLING ENGINE, PART FIVE
RHOMBIC DRIVE STIRLING ENGINE, PART FIVE
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Rhombic drive Stirling engine - moteur Stirling à embiellage rhombique
Rhombic drive Stirling engine - moteur Stirling à embiellage rhombique
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Rhombic Drive Stirling Engine by William Kidd
Rhombic Drive Stirling Engine by William Kidd
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Stirling Engine with Rhombic Drive details
Stirling Engine with Rhombic Drive details
::2014/03/05::
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Rhombic Drive Stirling Engine,    10cc Pressurized,  Part 2
Rhombic Drive Stirling Engine, 10cc Pressurized, Part 2
::2009/12/05::
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Stirling Engine with Rhombic Drive  (highspeed)
Stirling Engine with Rhombic Drive (highspeed)
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Animated Beta Type Stirling, Rhombic Drive (CatiaV5)
Animated Beta Type Stirling, Rhombic Drive (CatiaV5)
::2013/06/16::
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Asymmetric Rhombic Drive Stirling Engine [PEACE Lab. NCKU]
Asymmetric Rhombic Drive Stirling Engine [PEACE Lab. NCKU]
::2008/10/22::
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Stirling Engine with Rhombic Drive
Stirling Engine with Rhombic Drive
::2014/04/18::
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Stirling engine (rhombic drive Beta configuration)
Stirling engine (rhombic drive Beta configuration)
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beta rhombic drive twin crank pressurised hot air engine
beta rhombic drive twin crank pressurised hot air engine
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Stirling Engine with Rhombic Drive
Stirling Engine with Rhombic Drive
::2013/11/09::
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Rhombic drive simulation
Rhombic drive simulation
::2007/10/13::
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beta stirling engine simulation with rhombic drive
beta stirling engine simulation with rhombic drive
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Ross 11cc beta rhombic drive hot air engine
Ross 11cc beta rhombic drive hot air engine
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Stirling Beta - Rhombic drive
Stirling Beta - Rhombic drive
::2010/04/21::
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Rhombic Drive for Speed Governor
Rhombic Drive for Speed Governor
::2009/07/13::
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Rhombic Drive for Stirling Engine
Rhombic Drive for Stirling Engine
::2009/07/13::
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Rhombic engine
Rhombic engine
::2013/07/21::
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STIRLING  ENGINE
STIRLING ENGINE
::2008/08/07::
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2 Watt Rhombic Cycle Stirling Engine
2 Watt Rhombic Cycle Stirling Engine
::2008/06/11::
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model stover engine
model stover engine
::2008/07/13::
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Rhombic Beta Stirling v2 (in design)
Rhombic Beta Stirling v2 (in design)
::2008/11/27::
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Julius De Waal Rhombic Stirling engine
Julius De Waal Rhombic Stirling engine
::2013/04/23::
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Moteur Stirling Rhombic
Moteur Stirling Rhombic
::2012/10/21::
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My Beta Stirling crank drive mechanism close view
My Beta Stirling crank drive mechanism close view
::2014/03/16::
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stirling engine z axis crank スターリングエンジン Z軸クランク
stirling engine z axis crank スターリングエンジン Z軸クランク
::2008/01/04::
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Stirling Engine
Stirling Engine
::2009/09/17::
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NCKU PEACE LAB Stirling Engine
NCKU PEACE LAB Stirling Engine
::2008/10/07::
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New design with 120 degrees yoke upside view
New design with 120 degrees yoke upside view
::2014/03/24::
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The HHOPP engine
The HHOPP engine
::2008/08/08::
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stirling engine   スターリングエンジン
stirling engine   スターリングエンジン
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Mk IV Thermal Lag Stirling Engine
Mk IV Thermal Lag Stirling Engine
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stirling  engine  スターリングエンジン 1
stirling engine  スターリングエンジン 1
::2014/01/04::
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Rhombic 210-hedron
Rhombic 210-hedron
::2009/07/13::
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Animation Stirling Engine.mp4
Animation Stirling Engine.mp4
::2013/02/16::
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STIRLING ENGINE 8 CYL RADIAL
STIRLING ENGINE 8 CYL RADIAL
::2010/09/09::
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Andres Sanzol Motor Stirling Engine
Andres Sanzol Motor Stirling Engine
::2009/05/21::
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Solar Stirling Engine
Solar Stirling Engine
::2012/10/25::
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Demonstration of a wood burning Stirling engine.
Demonstration of a wood burning Stirling engine.
::2013/09/19::
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GammaStirlingEngine2.avi
GammaStirlingEngine2.avi
::2012/03/31::
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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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