Research Investigation of the Migratory Combustion Chamber Engine PDF Download
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Author: Kenneth C. Streeter
Publisher:
ISBN:
Category : Combustion chamber
Languages : en
Pages : 366
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Book Description
Author: Kenneth C. Streeter
Publisher:
ISBN:
Category : Combustion chamber
Languages : en
Pages : 366
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 43
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Book Description
The Belvoir Research, Development and Engineering Center (BRDEC) tested three Migrating Combustion Chamber (MCC) engines built by Engine Research Associates (ERA) for Natick RD and E Center. The MCC concept attempts to provide a lightweight, quiet engine having a cool exhaust gas stream. The cool exhaust is attained by capturing additional energy from expansion beyond that achievable in conventional engines by the use of gas porting to multiple expansion chambers; this provides a more efficient engine operation than is otherwise attainable for the configuration. The testing included determining the engine torque-speed-power characteristics and the Brake Specific Fuel Consumption (BSFC) under a variety of load conditions Startability and operability were concerns; starting under normal ambient conditions was difficult. All testing was performed using a 10: I fuel/oil mixture of low lead gasoline with AMZOIL synthetic lubricating oil for two-stroke engines. The maximum power achieved was 0.25 horsepower at 4,400 rpm. The peak torque observed was 69 oz.-in. at 3,200 rpm. It was not possible to make noise and vibration measurements during the testing cycle, but they appeared to be low. The MCC engines tested had relatively short lives, operating for less than 25 hours. Performance and durability improvements are necessary before this MCC design can be considered as a viable alternative to commercially available two-cycle engines.
Author: V. S. Gusarov
Publisher:
ISBN:
Category :
Languages : en
Pages : 15
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The 1Ch 8.5/11 engine is a single-cylinder unit put out by the Riga Diesel Plant. A study was made of the feasibility of direct injection with the combustion chamber in the piston in this type of engine. A diagram of the modified combustion chamber with a compression ratio of 15.8 is shown. A new cylinder head was used together with the revised cylinder, which was made of aluminum. The compression ratio was changed by increasing the depth of the chamber. The axis of the chamber was displaced by 5 mm from the cylinder axis toward the spray unit so that the tip of the unit would reach the chamber. The engine was otherwise left unaltered. Various spray units with from one to four nozzle apertures were used in the tests. The test stand was equipped with an equalizing dynamo, systems for fuel supply and measuring the rate of fuel flow, engine cooling regulation, exhaust gas temperature measurement, registration of the initiation and termination of fuel spray. A stroboscopic tachometer was used for setting and monitoring the engine speed. In studying the effect of the number of nozzle apertures on operational indices, the diameters were varied to give approximately the same total cross section in all cases. It was found that optimum operating conditions are achieved with a four-aperture spray unit and a compression ratio of 15.8 without axial vorticity. Conversion to direct injection results in increased indicator efficiency chiefly due to reduced losses in cooling and incomplete combustion. (Author).
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 536
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Author: Institution of Mechanical Engineers (Great Britain)
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 180
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 464
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 1352
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Author: Eugene L. Keating
Publisher: CRC Press
ISBN: 1420017489
Category : Science
Languages : en
Pages : 685
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Book Description
The second edition of this practical text offers a broad introduction to the engineering principles of chemical energy conversion. Eugene L. Keating, Ph.D., P.E., a recognized authority within academia, government, and industry, examines combustion science and technology using fundamental principles. Thermochemical engineering data and design formu
Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 792
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Author:
Publisher:
ISBN:
Category : Fossil fuels
Languages : en
Pages : 1052
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