PM Research Engines

Water Cooled Red Wing Motor 1/4 Scale. This is a factory machined and completed engine.

The 5 HP Red Wing Engine was the inspiration for this quarter scale version. This model is fully functional and has a 2 inch stroke, a 1.25 inch bore and has 8 inch flywheels. It runs on camping fuel and uses a buzz coil as an ignition source.

This bronze and iron engine is completely machined, painted, assembled, tested and ready to run.

The engine is all hand machined! (The drain cock shown is optional - drain cock part DC-3 see below).

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Instructions How to Use

Related Products:

Drain Cock 3/16 - 40 $26.50

Detailed Machining Directions for The Red Wing Hit & Miss Engine $19.95

Air Cooled Red Wing Motor 1/3 Scale - Engine Ready to Run

Bore 1-1/2", Stroke 2", Gasoline Engine

The 2.5 HP air cooled Red Wing Engine was the inspiration for this fully functional one third scale model. It runs on regular gasoline and uses a buzz coil as an ignition source.

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This item (as shown) includes an OPTIONAL grooving for the Wilesco belts and rubber cord belts sold on this site. This option for the grooving is $7.95.

You can belt this dynamo to any of our steam engines and produce power for your miniature factories or light your small villages. This is reminiscent of a vintage open frame dynamo used for lighting in early factories.

This Dynamo comes completed sporting cast iron construction. The frame has mounting ears and two aluminum end caps to contain the magnet, armature and brushes. You can paint this to suit your requirements.

SPECIFICATIONS:

Speed: 5300 rpm

Voltage: 10 VDC @ 10 watts

Voltage no load: 12 VDC

Max. Current: 2.4 Amps

Dimensions: 2-3/8"W x 3-1/2"L x 2-1/4"H

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Retail Price $269.98

On Sale Limited Time Offer!

This miniature Stirling Cycle Engine measures 7" x 4-1/4" and comes complete with built-in alcohol burner. Red flywheels and chassis mounted on a green base, these all-metal beauties silently running at speeds in excess of 1,000 RPM attract attention and create awe wherever displayed. This model comes completely assembled and ready to run, accompanied by our "Stirling Cycle Engines" book.

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The Fantastic Vacuum Engine
With a slight twist of the flywheel, the engine roars to life. The alcohol flame dances furiously and a lance of fire stabs through the rapidly working valve. The exhaust-like popping coupled with the clattering of the valve assembly causes a pleasant commotion that is music to the ears of those who enjoy the mechanical marvels of man. This is the exciting "Vacuum Engine," with a history that goes back to the early 1700's. It is the ultimate in craftsmanship, function and beauty of design. This engine has a beautiful combination of fine wood grain and black base. It is highlighted by a polished brass cylinder and standard. The massive flywheel, crank and burner are nickel plated.
The Flame Eater measures 6" x 8-1/2" and comes with its own alcohol burner. Completely assembled, factory-tested and ready to fascinate you and your audiences with speeds up to 1,000 RPM. This engine is perfect for hobbyists, students, collectors, and experimenters. Completely assembled and ready to run.

Not a Stirling but an unconventional heat engine in which the piston, on the outward stroke and driven by the flywheels, draws a flame and hot gas into the cylinder through a valve in the cylinder head which is held open during this half-cycle.
At the bottom of the stroke the valve is closed and the gas, now cooled by the water jacket, contracts. The resulting drop in internal pressure allows external air pressure to drive the piston back on its inward stroke, storing energy in the flywheels. As it approaches TDC the internal pressure rises to equal the external, but the piston continues on its stroke, now driven by the flywheels, and with any further rise in internal pressure prevented by the valve opening.
When the piston reaches TDC the cycle is complete and begins again on the outward stroke.
The engine produces very little useable power but does make a splendid noise due to the flame and gasses being alternately drawn into, and blown away from, the valve.

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The Glassworks

See the pistons at work. Look inside the glass cylinders at the Stirling Cycle principle in action. This engine is extremely interesting to watch, is well built, and runs at speeds up to 1500 RPM. This is a hard combination to beat. Gyro-quality ball bearings, machined flywheel, sand cast frame which is painted royal blue, aluminum cooling fins and a hardwood platform are only a few of the outstanding features incorporated into this engine. To illustrate the versatility of a Stirling Engine, we provide a burner for denatured alcohol and a platform for solid fuel. A sample quantity of ESBIT dry fuel is supplied with the engine as well.

Special features include: replaceable and adjustable Pyrex hot cap, replaceable Pyrex power cylinder, dual fuel capability, and a solid hardwood platform. Specifications: 9" length x 4" height x 6" width. Completely assembled and ready to run.

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The first "RIDER" engines were manufactured in 1880 by the De Lamater Iron Works. This engine was the inspiration for our "Peanut RIDER."

This all metal, black and brass engine with red flywheel is mounted on a solid hardwood platform. It is an excellent running engine and will make a handsome addition to your collection.

Each engine is test run at the factory and comes complete with an alcohol fuel cell, extra wick, allen wrenches, and Owner's Manual.

Specifications: Base is 5-1/4" x 5-1/4", 4" width x 9" height, 3/4" stroke, 3-1/2" flywheel.

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1895 RIDER-ERICSSON HOT AIR PUMPING ENGINE

Now, you too can own the most sought after model hot air engine!

The Rider-Ericsson is the only hot air engine that was actually manufactured in production quantities. This marvelous engine is fascinating to see run, with all of its moving parts and a pump that really works! It is a must for all model hot air collections!

Our Hot Air Engine measures 4-1/2" x 5" x 6". The curved spokes of the flywheel, the cast linkages, bedplate, water jacket, and crankshaft bracket all contribute to the air of authenticity.

The original Ericsson engines were all water cooled. We are offering a water-cooled version complete with pump to circulate water through the engine. A free, 12-page leaflet containing interesting information on the original Ericsson engine is included with each model.

Each engine is tested at the factory and comes complete, ready to run, with an alcohol fuel burner, water tank, extra wick, allen wrenches and Owner's Manual.

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Stirling Cycle Motor Driven Fan