The Four Cylinder Stirling Engine

This is the four-cylinder Stirling engine that putters up to an efficient 2,000 rpm, powered by the expansion and compression of air. Made in Germany from machine-tooled solid brass and stainless steel, its operation employs the thermodynamic principle of a regenerative heat engine—put to its first practical use in 1818 by Robert Stirling. Four alcohol burners resting on a hand-finished birch platform heat four horizontal piston cowlings; a quick flip of its dual brass flywheels sets the engine's displacement and working pistons into motion. The resulting expansion and contraction of heated and cooled air inside the cylinders transforms the 16 connecting rods, eight rocker arms, and crankshaft into a precisely calibrated alternating cycle. It can operate at lower rpms by using only one to three burners. Four full burners of ethyl alcohol (not included) power the engine for up to 10 minutes. 8" L x 6 1/4" W x 6 1/4" H. (5 1/4 lbs.)

Lifetime Guarantee

The Four Cylinder Stirling Engine comes with The Hammacher Schlemmer Lifetime Guarantee. If this product ever disappoints you, for any reason, you may return your Hammacher Schlemmer purchase for exchange, credit, or refund.

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Item 82970

Special Shipping Charges

Shipping charges noted in parentheses apply in addition to our standard shipping & service.

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Special Shipping Charges

Oversized items scheduled for expedited delivery (Premium or Express) may incur additional shipping and services charges because of their unusual size. Please call 1-800-321-1484 for an estimate of S&S charges. International callers, please call 1-513-860-3397.

We're sorry, but gift wrap is not available for oversized items.

Special Shipping Charges

Shipped via truck and may require customer assistance upon delivery. You will be contacted to make an appointment for delivery.

We're sorry, but gift wrap and gift cards are not available.

This product is Duty Free to Canada

GST still applies and will be charged upon processing. For complete shipping & service charges please call Customer Service at 1-800-321-1484 .

Price $1,000
We regret that this item is no longer available.
The Four Cylinder Stirling Engine
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