User:MichaelFrey/Manson engine
The Manson engine is a Hot air engine was first described by A. D. Manson in the March 1952 issue of Newnes Practical Mechanics-Magazines.[1]
Manson Engines can be started both ways (clockwise and counter clockwise).[2]
The piston is stepped. The front part is acting as a displacer and the back part as work piston. (Displacer and Piston move as a single component)[3][1]
The Manson Engine has no commercial or practical application. Engines are mainly build as Desk toys/Physics demonstration/novelties.[2]
The engine is double acting,[1] as it is using both the expansion of the warmed air and the contraction of cooling air to exploit work.[3][4][5]
The engine only requires three moving parts (Piston[3], Piston Rod and crank).
Functioning mechanism[edit]
- Phase 1 (cooling down the work medium, suction stroke)
- when the Piston is moved towards the heat source, the hot gas inside the engine is moved to the cool side of the cylinder.
- the gas is cooled there, resulting in a drop in pressure, further moving the piston towards the heat source.
- Phase 2 (upper death center)
- When the piston reaches the upper death center, the valve is open, releasing the vacuum.
- the flywheel keeps the piston moving
- Phase 3 (heating up the work medium, expansion stroke)
- when the piston is moving away from the heat source, the air is pushed towards the heat source.
- the air is then heating up, resulting in the air expanding and the piston being further pushed away from the heat source
- Phase 4 (lower death center)
- when the piston reaches the lower death center, the valve is open, releasing the build up pressure and hot air.
- the flywheel keeps the piston moving
differences to Stirling engines[edit]
Stirling engines are typically closed systems. Manson Engines are open system.[3][5][8][2]
Displacer and Work piston of the Manson Engine have zero phase angle.[4]
Variations[edit]
The valve/gas paths are considered by some to be complicated to manufacture, so various variants exists with improved/modified simplified vales/gas paths.[9][10]
Sources[edit]
- ^ a b c d "The Manson experimental double acting engine". www.stirlingengines.org.uk.
- ^ a b c "Nano Disc - Horizontal - From www.stirlingengine.co.uk". Stirlingengine.co.uk.
- ^ a b c d "Manson". techref.massmind.org.
- ^ a b "New generation of hot air engines: Manson engine".
- ^ a b "Manson". www.geocities.ws.
- ^ "Principes de fonctionnement du moteur Manson". web.archive.org. December 22, 2018.
- ^ "Manson-Motor". www.w-haag.de.
- ^ https://journeymans-workshop.uk/images/downloads/manson.pdf
- ^ a b C2 DE 19904269 C2, Michael Ruppel, "Heißluftmotor - Heat engine has a simplified design with combined piston and valve and with alternate sides of the piston vented in either limits of the piston movement", published 2000-11-9, issued 2001-6-5
- ^ GB application 2554458A, Christopher Guise, "Improvement to Manson engine", published 2000-11-09
Weblinks[edit]
