US Patent: 611,813
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| Thermal Expansion Engine
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Patentee:
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| Georges A. Marconnett (exact or similar names) - Paris, France |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Nov. 27, 1897 |
| Granted: |
Oct. 04, 1898 |
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Joel Havens
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Description: |
| Patented in France, 30 Jan., 1897, #203,582 and in Luxemburg, 29 Jul., 1897, #2,921.
Claim:
Although the efficiency or economic coefficient of gas or other explosion motors in general may be much greater than that of steam motors, there exists, nevertheless, in these more perfected forms sources of inevitable loss of energy. It is very well known that the very high temperature produced by the explosion of a gaseous mixture (a temperature which varies from about 1,000° to 1,700° centigrade) would produce in cylinder and piston motors a heating of the walls of the cylinder and other parts which is incompatible with good working and the duration of the working parts. Recourse is therefore had to the employment of a circulation of cold water around the cylinder; but the action of this current of water causes a lowering of temperature sufficient to considerably modify the effects of expansion and the efficiency of the motors, especially during the period between the explosions, a period which is relatively long. Besides this the exhaust-gases carry off a large quantity of unutilized heat and the mechanical transmitting organs in any cylinder and piston motor absorb a considerable quantity of the power exerted. |
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