02-04-2011, 03:38 PM
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DYNA-CAM ENGINE
The Dyna-Cam engine is a type of Reciprocating engine that replaces the common crank shaft with a circular plate.
An alternate design replaces the plate with a sine-shaped cam, and is thus known as a cam engine
CRANKSHAFT
WORKING
• Pistons press down on the plate in sequence
• forcing plate to nutate around its center
• This motion can be simulated by placing a disc on a ball bearing at its centre
• It press down at progressive places around its circumference
• The plate is typically geared to produce rotary motion
RELATED PRODUCT MANUFACTURES
• Macomber
• Statax
• Michell
• J.O. Almen
• Heraclio Alfaro
• Bristol
• Wooler
• H.L.F Trebert
Macomber
• marketed one of the first axial internal-combustion engines.
• it had seven cylinders and a variable compression ratio.
• Ignition was supplied by a Bosch Magneto directly driven from the cam gears.
• The engine was claimed to be able to run at 150 to 1,500 rpm. It weighed 230 pounds (100 kg) and it was 28 inches (710 mm) long by 19 inches (480 mm) in diameter.
Statax
• Only a single prototype was produced, which is currently held in the science museum, London
• In 1914 introduced series of engine, a 3 cylinder of 10 hp, a 5 cyl of 40 hp, a 7 cyl of 80 hp, and a 10 cyl of 100 hp.
• Much improved versions were introduced by Statax's German division in 1929
Michell
• Its unique feature was the means of transferring the load from the pistons to the swashplate
• It is achieved using tilting slipper pads sliding on a film of oil.
• mathematical analysis of the mechanical design
• In 1920 established the Crankless Engines Company
• produced working prototypes of pumps, compressors, car engines and aero engines, all based on the same basic design.
• The largest Michell crankless engine was the XB-4070, a diesel aircraft engine Consisting of 18 pistons, it was rated at 2000 horsepower and weighed 2150 pounds.
J.O. Almen
• Experimental barrel engines for aircraft use were built and tested
• The A-4 had much smaller frontal area than water-cooled engines of comparable power output
• It was rated at 425 horsepower (317 kW), and weighed only 749 pounds (340 kg),
• giving a power/weight ratio of better than 1:2, a considerable design achievement at the time.
Heraclio Alfaro
• designing, building, and flying Spain's first airplane
• developed a barrel engine for aircraft use which was later produced by the INDIA motorcycle company as the Alfaro
• it included a sleev valve system based on a rotating cylinder head
Bristol
• it was a 7 litre, 9 cylinder, wobble-plate type engine
• It was originally conceived as a power unit for buses
• its compact format would allow it to be installed beneath the vehicle's floor
• The engine had a single rotary valve to control induction and exhaust
Wooler
• the most refined of the designs
• It was similar to the Bristol axial engine but had two wobble-plates
• driven by 12 opposed pistons in 6 cylinders
• The engine is often incorrectly referred to as a swashplate engine.
• H.L.F Trebert
• small barrel engines were produced for marine usage
PRESENT DAY PRODUCTS
• Dyna-Cam
• Fairdiesel
• Honda
Dyna-Cam
• The Dyna-Cam engine originally came from a design by the Blazer brothers, who worked for Studebaker in 1916
• It has 6 double-ended pistons working in 6 cylinders, and its 12 combustion chambers are fired every revolution of the drive shaft
• The pistons drive a sine-shaped cam, as opposed to a swashplate or wobble-plate
Fairdiesel
• engines which use non-sinusoidal cams
• industrial applications and aviation use. Their designs range from a 2-cylinder, 80mm bore engine to a 32-cylinder, 160mm bore one.
Applications
• The most well-known application is in topedo, where the cylindrical shape is desirable. The modern mark48 torpedo is powered by a 500 hp swashplate engine geared to a pump-jet propulsor. It is fueled by otto fuel II, a monopropellant that requires no oxygen supply and can propel the torpedo at up to 65 knots (120 km/h) (74.56 mph)
• Other applications include pneumatic and hydraulic motors,hydrostatic transmissons such as honda's Hondamatic cvt , and air conditioner pumps. Also, some striling engines use a swashplate arrangement, e.g. Stirling Thermal Motors' STM 4-120 engine
DYNA-CAM ENGINE
The Dyna-Cam engine is a type of Reciprocating engine that replaces the common crank shaft with a circular plate.
An alternate design replaces the plate with a sine-shaped cam, and is thus known as a cam engine
CRANKSHAFT
WORKING
• Pistons press down on the plate in sequence
• forcing plate to nutate around its center
• This motion can be simulated by placing a disc on a ball bearing at its centre
• It press down at progressive places around its circumference
• The plate is typically geared to produce rotary motion
RELATED PRODUCT MANUFACTURES
• Macomber
• Statax
• Michell
• J.O. Almen
• Heraclio Alfaro
• Bristol
• Wooler
• H.L.F Trebert
Macomber
• marketed one of the first axial internal-combustion engines.
• it had seven cylinders and a variable compression ratio.
• Ignition was supplied by a Bosch Magneto directly driven from the cam gears.
• The engine was claimed to be able to run at 150 to 1,500 rpm. It weighed 230 pounds (100 kg) and it was 28 inches (710 mm) long by 19 inches (480 mm) in diameter.
Statax
• Only a single prototype was produced, which is currently held in the science museum, London
• In 1914 introduced series of engine, a 3 cylinder of 10 hp, a 5 cyl of 40 hp, a 7 cyl of 80 hp, and a 10 cyl of 100 hp.
• Much improved versions were introduced by Statax's German division in 1929
Michell
• Its unique feature was the means of transferring the load from the pistons to the swashplate
• It is achieved using tilting slipper pads sliding on a film of oil.
• mathematical analysis of the mechanical design
• In 1920 established the Crankless Engines Company
• produced working prototypes of pumps, compressors, car engines and aero engines, all based on the same basic design.
• The largest Michell crankless engine was the XB-4070, a diesel aircraft engine Consisting of 18 pistons, it was rated at 2000 horsepower and weighed 2150 pounds.
J.O. Almen
• Experimental barrel engines for aircraft use were built and tested
• The A-4 had much smaller frontal area than water-cooled engines of comparable power output
• It was rated at 425 horsepower (317 kW), and weighed only 749 pounds (340 kg),
• giving a power/weight ratio of better than 1:2, a considerable design achievement at the time.
Heraclio Alfaro
• designing, building, and flying Spain's first airplane
• developed a barrel engine for aircraft use which was later produced by the INDIA motorcycle company as the Alfaro
• it included a sleev valve system based on a rotating cylinder head
Bristol
• it was a 7 litre, 9 cylinder, wobble-plate type engine
• It was originally conceived as a power unit for buses
• its compact format would allow it to be installed beneath the vehicle's floor
• The engine had a single rotary valve to control induction and exhaust
Wooler
• the most refined of the designs
• It was similar to the Bristol axial engine but had two wobble-plates
• driven by 12 opposed pistons in 6 cylinders
• The engine is often incorrectly referred to as a swashplate engine.
• H.L.F Trebert
• small barrel engines were produced for marine usage
PRESENT DAY PRODUCTS
• Dyna-Cam
• Fairdiesel
• Honda
Dyna-Cam
• The Dyna-Cam engine originally came from a design by the Blazer brothers, who worked for Studebaker in 1916
• It has 6 double-ended pistons working in 6 cylinders, and its 12 combustion chambers are fired every revolution of the drive shaft
• The pistons drive a sine-shaped cam, as opposed to a swashplate or wobble-plate
Fairdiesel
• engines which use non-sinusoidal cams
• industrial applications and aviation use. Their designs range from a 2-cylinder, 80mm bore engine to a 32-cylinder, 160mm bore one.
Applications
• The most well-known application is in topedo, where the cylindrical shape is desirable. The modern mark48 torpedo is powered by a 500 hp swashplate engine geared to a pump-jet propulsor. It is fueled by otto fuel II, a monopropellant that requires no oxygen supply and can propel the torpedo at up to 65 knots (120 km/h) (74.56 mph)
• Other applications include pneumatic and hydraulic motors,hydrostatic transmissons such as honda's Hondamatic cvt , and air conditioner pumps. Also, some striling engines use a swashplate arrangement, e.g. Stirling Thermal Motors' STM 4-120 engine
