US579378A - E rale des motetjrs gazogenes systems benier - Google Patents

Description

2 Sheets-Sheet 1. L. BNIER. vGAS ENGINE.

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Patented Mar. 23., 1897.

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L. BNIER. GAS ENGINE.

No. 579,378. Patented Mar. 23, 1897.

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LEON BENIER, OE PARIS', FRANCE, nssIoNoa To rrnE OOMPAGNIEGEN- ERALE DEs MOTEURS eAZoGENEs SYSTEME BENIER, or SAME PLACE.

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SPEGIFICATIGN forming part of Letters Patent No. 579,378, dated March 23, 1897'.l

Application iled February 17,1894. Serial No. 500,518. (No model.) Patented in France December 29, 1893, No. 235,146; in Belgium January 19, 1894, No. 108,139; in Switzerland January 22, 1894, No. 7,897; iu England January 24,1894,No. 1,581; in Germany January 28,1894, No.77,835; in Hungary February 18, 1894,No. 42; in Spain February 26,1894,No. 15,400; in AustriaMarch 1, 1894, No. 221; iu Italy MarohBO, 1894, No. 35,623 in Portugal November 28, 1894, No, 2,043;

in Luxemburg May 18, 1895, No. 2,809; iu Tunis May 26, 1895, No. 152, and in Turkey September 27,1895,1\To.465.

To @'ZZ whom t may concern:

Beit known that I, LON BNIER, engineer, a citizen of the Republic of France, residing in Paris, France7 have invented certain 1mprovements in and Relating to Gas-Engines, (for which I have obtained patents in France, dated December 29, 1898, No. 235,140; in Belgium, dated January 19, 1894, No. 108,139; in Hungary, dated February 18, 1894, No.

1o 42; in Austria, dated March 1, 1894, No. 221; in Italy, dated March 30, 1894, No. 35,028; in Turkey, dated September 27, 1895, No. 405; in Luxemburg, dated May 18, 1895, No. 2,309; in England, dated January 24, 1894,

i5 No.1,5815 in Spain, dated February26, 1894, No. 15,400; in Germany, dated January 28, 1894, No. 77,835; in Switzerland, dated Jannary 22, 1894, No' 7,897; in Portugal, dated November 28, 1894, No. 2,043, and in Tunis,

2o dated May 26, 1895, No. 152,) of which the following is a specification.

My invention relates to an engine especially constructed to be operated by poor gas and to work with a generator forming the subz 5 ject-matter of a patent granted to me December 24, 1895, No. 551,943, and in which the gas formed entirely depends on the Operation of the engine.

This improved gas-engine is arranged for giving one push in each revolution of the shaft, which push is more or less strong according to the power to be produced and does not need to be suppressed.

A form of this engine is represented in the 5 5 accompanying drawings.

Figure l is a vertical longitudinal section through the axis of the engine-cylind er. Fig. 2 shows a horizontal section through the axis of the engine-cylinder. Fig. 3 shows a transverse section through the axis of the admission-valve and the gas-generator in outline. Fig. 4is apartial longitudinal section through the axis of the pumps.

The general arrangement of the engine cour prises the engine-cylinder d', the gas-pump b,

and the airpu1np d. The cylinder cZ is provided with dischargeoriiices Zt, and when its piston d. is at the end of its instroke there is a space between the end of the piston and the end of the cylinder, usually called the 5o compression-chamber. 7 The pistons of the gas and air pumps are in one, and the pumps have approximately the same volume.. The air-pump a draws in air through the valve a', and on its return stroke drives the air out through the pipe q to the space n and valve c. The gas-pu mp b communicates with the gasgenerator G lV by the pipe X X', in which is a throttlevalve m, hereinafter explained. The gas-pump b sucks the gas from the gen- 6o erator through the valve b, and on its return stroke drives the gas through the pipe y to the space p, Where it mixes with the air from the space n and passes through the valve c to the engine-cylinder. 6 5

In order that the replacement of the burned gases by the fresh mixture may be eected under economical conditions without loss of gas by escape, it is necessary that the first portions delivered by the pumps shall not 7o contain gas, but only `pure air, which comes in contact with the burned gases and drives them away. As the two pumps operate together, the gas-pump must commence by delivering pure air like the air-pump. This is obtained in the following manner: The two pumps are in constant communication by means of their delivery-pipes q and gy and through the spaces n and p in the interior of the valve-loox o. Consequently during the 8o suction of the pumps some air passes into the outlet-pipe g/ of the gas-pump b. A valve Z is placed upon the gas-deliverypipe to pre vent the gas-pump being filled with air during the suction, the air entering more easily 8 5 than the gas, which must traverse the 1whole gasgenerator. By completely closing this valve Z during the suction, a certain quantity only of air is permitted to pass into the gas-A pump, this quantity being limited to the vol- 9o unie necessary for filling the delivery-pipe. A nut g regulates the opening of the valve Z during suction. From this it follows that when the piston of the pumps commences the delivery only air will at first pass into the engine-cylinder until the air contained in the gas delivery pipe has been driven away. Then gas enters through p and air through n in suitable proportions for forming the explosive mixture, which are determined by the section of the cylinders of the pumps. The gas-pump sucks in at each stroke a certain volume of gas from the gas-generator and delivers it directly into the engine-cylinder. This suction causes the drawing into the n'asgenerator of an equivalent quantity ot air and steam, which traverses the furnace of the gas-generator to form the gas.

I do not claim in this application the specic form of gas-generator, as this is claimed in my aforesaid patent, but its relation to the engine described herein, which operates the gas-generator to form the gas necessary for the consumption of this engine.

The quantity of gas sucked in each stroke, and consequently the inlet of air and steam into the furnace of the gas-generator, may be varied by the governor.

The governor placed at f and actuating the throttle-valve m allows only the quantity of gas necessary for producing the work which the engine is required to perform to pass into the pump in each stroke. I obtain more or less strong explosions without any need for suppressing them, even when the engine runs idle.

The ignition of the explosive mixture is effected by an electric igniting device placed at if.

The working of the apparatus is as follows: The piston of the pumps, which is actuated by a crank forming an angle ot' ninety degrees with the crank of the engine, is drawing air into the cylinder a, gas into the cylinder Z9, (and in consequence air and steam into the gasgenerator G,) and air into the return-pipe y during the latter part of the inward and the first part of the outward strokes of the piston d of the engine-cylinder d. The discharge from the cylinder d takes place naturally while the piston uncovers the orifices h. They are uncovered when the piston has traversed about ve-sixths of its forward stroke. Therefore they remain open during the last sixth of the forward stroke and during the first sixth of the backward stroke. During this time the piston of the pumps, making its return stroke, forces into the engine-cylinder the air and gas which have been sucked in. This mixture enters the cylinder through the valve c, the air arriving at n and the gas at p. The mixture, passing thro ugh the pipe r, provided at the center of the cylinder-cover, traverses the small plates s, which have for their object to cause the current of the mixture to take the section of the cylinder, se as to completely drive away the burned gases which iill the cylinder. The en gine-piston, returning to the rear after it has covered the discharge-orices, compresses the mixture introduced until it reaches the end of its rear stroke. At this moment the explosion takes place and the expanding gases push the engine-piston in its forward stroke until the dischargeoriiices open, when the same operations recommence.

I claim as my inventionl. In a gas-motor, the combination of a motive-power cylinder, with a gas-pump provided with a gas-inlet valve and a return-pipe leading to the motive-power cylinder, and means whereby during the suction stroke of the gas-pum p, gas is drawn into the pump and air into the said returnpipe, substantially as set forth.

2. In a gas-motor the combination of a motive-power cylinder, with a gas-pump provided with a gas-inlet valve and a return-pipe leading to the motive-power cylinder, the said pipe communicating with the atmosphere during the suction of the pump, and an adjustable automatic valve in the said pipe adapted to open freely during the return stroke of the pump, but to incompletely close during the suction, substantially as and for the purposes set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. l I

LEON BICNIER.

W'itnesses:

CLYDE SHRoPsHIRE, LoN FRANKENs.

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