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[Music]

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the sterling engine is recognized by the

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department of energy as a promising

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alternative to the internal combustion

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engine

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sterling burns any fuel creating heat

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for the cylinder

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the heat itself powers the engine

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any fuel can be used liquid solid or gas

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the sterling even operates on heat from

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nuclear and solar energy

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combustion is continuous and complete

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quiet and clean

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ongoing research in aeronautical and

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automotive engines at the nasa lewis

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research center in cleveland ohio

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indicates the sterling may be the engine

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of the future

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feasibility studies by manufacturers

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indicate the technology to produce

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sterling engines commercially exists

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today

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value engineering studies have shown the

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sterling can be manufactured in low

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production volumes at a competitive cost

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the engine can be built to provide power

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for both propulsion and stationary

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applications

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a sterling engine developed by

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mechanical technology incorporated for

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nasa lewis research center and the

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department of energy has been evaluated

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by a nasa technology utilization program

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under actual driving conditions

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the sterling engine was installed in an

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air force van

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the van's original 150 horsepower diesel

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engine was replaced by a 75 horsepower

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sterling and assigned actual duty

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service at langley air force base in

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virginia

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air force operators drove the van

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throughout the test serving 10 to 15

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aircraft on a flight line driving from

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base to aircraft moving about the field

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in and around aircraft

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stop and go

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hauling personnel and equipment

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performance was monitored by special

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equipment mounted in the van

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engine speed vehicle speed and miles

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accumulated were recorded daily

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during this air force mission three

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different fuels were used

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unleaded gasoline

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jp4 aircraft fuel

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and diesel fuel

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the van functioned normally during the

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one-year evaluation period on whatever

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fuel was available

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the sterling's high torque capability at

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low speeds enabled towing of all heavy

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support equipment

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after fourteen hundred hours and seven

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thousand miles results showed improved

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fuel economy

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a second vehicle a standard air force

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truck was also evaluated

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the truck's original 95 horsepower

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internal combustion engine was replaced

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by a 75 horsepower sterling engine

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tests were conducted over a one-year

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period for one thousand hours and

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nineteen thousand miles of open highway

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and city streets on rough and rural

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roads and in normal traffic in a variety

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in moderate climate the norfolk virginia

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area an expediter mission at langley air

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hot moist sea air environment a general

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transportation assignment at eglin air

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hot dry environment base taxi service at

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in the north a base supply mission at

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in addition the truck was driven from

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texas to washington dc

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a distance of 1600 miles the entire trip

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the sterling consistently delivered more

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miles per gallon

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current engines are a major contributor

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to the severe atmospheric pollution in

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our cities today

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exhaust emissions were evaluated and the

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sterling engine met federal emissions

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standards

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no catalytic converter or particulate

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trap was needed

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the exhaust is cool and clean

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the sterling engine can help reduce

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these pollutants to meet even the most

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stringent california standards

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also several maintenance requirements

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were eliminated with only one spark plug

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to start combustion

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no carburetor

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no catalytic converter and no muffler

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because the engine oil is not exposed to

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combustion products it stayed clean and

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uncontaminated throughout the test

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eliminating the oil changes

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the sterling engine offers increased

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fuel economy

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multi-fuel flexibility and reduced life

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cycle costs

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its economy and efficiency of operation

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are being demonstrated

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the sterling engine appears ready for

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market

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nasa's technical utilization division

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continues to work with u.s industry

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providing data to manufacturers and end

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users answering the questions on

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sterling technology

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and the technology is available now

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to build the power plant of the future

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today

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power for america on the land

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and in space

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the sterling engine