DE141077C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The object of the invention relates to a gas engine in which the two Combustion chambers arranged outside the cylinder are enclosed by compressed air chambers, in which the compressed air initially heated and avts which the compressed air after the expansion of the burned gases in Cylinder flows into the combustion chambers and then flows into the cylinders to the combustion chamber to clean and act as a propellant in the cylinder.

In the drawings, Fig. 1 is a longitudinal section of the machine, Fig. 2 is a cross section of the pump valve. 3, 4, 5 and 6 are sections on an enlarged scale along the lines MM ₁ NN, 0-0 and PP in FIGS. 1 and 7. This is a section along the line QQ in FIG. 9. FIG and 9 are sections according to the lines RR respectively. 5 "-5" of FIG. 1.

The machine works as follows:

In a combustion chamber by a

is surrounded by a chamber filled with compressed air, a combustible mixture is ignited and guided into the cylinder by means of a line controlled by a valve and acts in this as a propellant.

The heat developed by the combustion of the gases is removed from the walls of the chamber recorded and communicated to the compressed air in the jacket. As soon as the pressure of the cocked Air has risen above the pressure in the chamber, one opens between the combustion chamber and valve disposed on the air jacket. The compressed air flows into the cylinder, expands and drives the piston forward.

Two combustion chambers surrounded by air jackets are expediently arranged and each provided with a jacket for the exhaust gases, which alternate with each piston stroke be driven into the next jacket so that the air in the jackets is warmed up or at least before it cools down " is protected.

The drawing illustrates a single-acting machine; but it can just as well be designed as a double-acting machine, since the gases and the air with relatively low temperatures act on the piston.

The working cylinder 15 is provided with a piston 16 which is supported by its rod 17 is connected to the crank of the shaft 18 on which the flywheels 19 and 20 sit.

The combustion chambers consist of a number of tubes 21 respectively. 24, which respectively in the inner walls of the housing 22 and 23. 25 and 26 open and with jackets 27 respectively. 28 are surrounded by strong sheet metal; these are in turn of coats 29 respectively. 30 included, which are attached to the cover of the cylinder 15. The jackets 27, 28 are connected to the combustion chambers 21, 24 by means of valves 21 ⁰ , 24 ″ as soon as overpressure occurs in the jackets.

The combustion chambers 21, 24 are fed through pipes 31 and 32 from the opposite ends of the charge pump 33; the air chambers are filled through tubes 34 and 35 from opposite ends of the air pump 36. Both

Claims (1)

Pumps are operated simultaneously by a rod 37 which is driven by a connecting rod 38 is connected to the crank 39 seated on a shaft 58. The shaft 58 carries a gear 40, which engages in the gear 41 attached to the crank 18. From the ends of the charge pump 33 pipes 43 and 44 lead to the shut-off valves 45 and 46, which are connected to the main gas supply pipe 42. These valves close with every decrease in the pump piston and open on the suction stroke to let in the mixture.
The mounted in the tubes 31 and 32, pressure valve 31 ^s and 32. "- open on the compression stroke and close in the operation of the pump piston, the air cylinder 36 is provided with intake valves 47 and 48 and the tubes 34 and 35 have relief valves 34 ^ and 35 *. The combustion chambers 21, 24 are connected to the working cylinder through wide tubes 49 and 50 connected to valves 51 (Figs. 3, 5 and 7) located after the cylinder to open, are provided. The valve rods 52 are each connected to a lever 53, whose pivot 54 is mounted on a chair 55 attached to the cylinder cover and rests on a thumb washer 56 mounted on shaft 57; the thumb shaft 57, which is rotated by the shaft 58, the lever 53 drops freely when the piston is on inner dead center has arrived and the valve 51 opens under pressure, and lifts the lever at the other end of the stroke of the cylinder piston again, so that the valve 51 is closed. The exhaust ports 59 and 60, which respectively in the jackets 29. 30 flow are with Valves 61 (Fig. 4, 6 and 7) provided, which by the pressure of the around their rods 62 put Springs 63 are kept closed. The upper end of the valve rod is opposite thumb washers 64 mounted on the shaft 57 which, when rotated, the valve release when the piston arrives at outer dead center and at the end of the exhaust close the valve again. The four thumb disks 56, 64 are ^{offset 90 ° from} one another on the shaft 57. They therefore open and close the valves in the following manner. If the piston is at the inner dead center, then the thumb disk 56 drops valve A (see FIG. 7), for example. The explosion has taken place in chamber 24 and the gases act on the piston through inlet A while the other three valves remain closed. The piston is now propelled forward by the expanding gases in combustion chamber 24 as a result of the explosion. As soon as this pressure has decreased as a result of the expansion of the gases in the working cylinder and the radiation of the walls of the combustion chamber 24 so that an overpressure of the air is distorted in the jacket 28, the valve 24 opens and the air flows into the combustion chamber 24 and cleans it of the combustion gases, while at the same time receiving a higher pressure as a result of heating and acting on the piston. Valve A is then closed at the end of the working stroke of the piston and exhaust valve B opens and only closes again at the end of the piston return. During this piston movement, the air pump 36 has filled the air chamber 27 and the air in this chamber is heated by the exhaust gases flowing through the jacket 29. The valve C is now opened, an ignition takes place again and the pressure of the gases initially drives the Piston forward until valve 21 ″ opens and air flows into combustion chamber 21 and finally into the cylinder t and acts on the piston. At the end of the working stroke, the valve C closes and the exhaust valve D opens and closes again at the end of the retraction of the piston, the exhaust gases flowing through the jacket 30 and heating the air in the chamber 28. This completes one revolution of the machine while two explosions have taken place. The amount of air contained in the air chambers is so large in relation to the content of the combustion chambers that they are the same of all when they pass through the latter Combustion gases cleans and prepares for a new filling. The heat generated in the explosions is determined by the amount of air used kept so low that a water jacket or similar device to cool the Cylinder is not required. The device has the further advantage that the generated Heat is not lost, but mostly used for the work of the machine will. Figures 8 and 9 illustrate the ignition devices. The detonators 65 are more suitable Way for each of the combustion chambers and are powered by power sources 66 fed. Patent-A ν Proverbs: I. Gas engine with combustion chambers arranged outside the cylinder, characterized in that the two combustion chambers 21, 24 of Compressed air chambers 27, 28 are enclosed, in which the compressed air is initially heated and from which the compressed air, after the expansion of the burnt gases in the cylinder, flows into the combustion chamber and then into the cylinder to clean the combustion chambers and serve as a propellant in the cylinder.
2. A gas engine according to claim i, characterized in that the exhaust gases originating from a combustion chamber pass into the exhaust chamber which surrounds the compressed air chamber surrounding the other combustion chamber, for the purpose of preheating effective compressed air during the next piston stroke. For this purpose ι sheet of drawings.