CN1058319C - Double-acting engine - Google Patents

Abstract

The present invention provides a vaporizing safety valve of oil return with various fuels. A single fuel gas barrel and an engine with a long stroke of a reciprocating slide valve are adopted. Both ends of the fuel gas barrel are provided with a low pressure gas inlet valve, a high pressure gas inlet valve, a gas sweeping valve, an oil spraying gun and an electric glowing igniting plug. The slide valve is arranged in the fuel gas barrel to form two working chambers. Exhaust ports are arranged on an upper stopping point and a lower stopping point of the stroke of the slide valve; the exhaust ports are nozzles of a stopping point working device. Two-time gas entry, oil spray and combustion are carried out in each working chamber in a thermal work cycle, and the slide valve is pushed for applying work twice. The engine has the advantages of small size, large power, low noise, high thermal efficiency, good discharge performance, benefit to environmental protection and long service life.

Description

dual energy engine

The invention belongs to thermal power machinery, a dual combustion (hereinafter referred to as dual combustion) double inlet, double exhaust, reciprocating sliding valve of a gas cylinder acting at both ends in a thermal power cycle, reciprocating sliding valve on the same machine, and a dual combustion engine for power generation and work driven by a gas turbine. energy engine.

At present, the thermal power machinery commonly used mainly includes steam engines, gas engines, gas turbines, rotary engines, diesel engines and gasoline engines. Gasoline engine has the advantages of high power and low noise, but its fuel consumption rate is high; diesel engine is a widely used thermal power machine, but its work is rough, noisy, and exhaust pollutes the environment; gas turbine has low thermal efficiency, loud noise, short life, Poor acceleration performance and difficult braking; the rotary engine has the advantages of simple structure, small size and light weight, but due to difficult sealing, poor reliability and short life. These thermal power machines all have a single way of doing work, and light oil fuels cannot be used for constant-pressure thermal efficiency conversion cycles.

The purpose of the present invention is to design a dual-energy engine, which has high power, low noise, high thermal efficiency and low fuel consumption. Low and high pressure double air intake, upper constant pressure, lower constant volume double exhaust performance is good for environmental protection, long life, secondary combustion, secondary work, gasoline light fuel to achieve constant pressure heating cycle and stroke stop point and gas turbine Weekly work and other advantages.

The present invention is achieved in this way: the dual-energy engine and the dead point work device are arranged side by side by adopting the reciprocating type of the slide valve of the gas cylinder crank linkage mechanism, and the reverse common gas pump is connected to it at the bottom of the dual-energy engine; The bottom of the work device is provided with an exhaust gas turbocharger (the gas outlet of the gas wheel of the dead center work device is the intake nozzle of the waste gas turbocharger). In the two end covers of the gas cylinder of the dual-energy engine, there are high and low pressure intake valves and scavenging valves, fuel injection gun heads and electric glow plugs. There is a working slide valve in the gas cylinder to form two working chambers. An exhaust port is provided at the bottom dead center of the slide valve stroke (the intake nozzle of the power generator at the end point of the exhaust port). On the outer side of the upper end of the dual-energy engine and the inner side of one end of the reverse air supply pump, a crank connecting rod mechanism is respectively arranged, and the working slide valve of the dual-energy engine is connected with the crank wheel through the I-shaped head. Gear, its helical gear on the side of the rim is centrifugally meshed with the dead center power generator. The two ends of the dual-energy engine on the side of the reverse air supply pump are connected to the front and back of the synchronous shaft. This shaft is the power transmission shaft of the centrifugal governor, water pump, and oil pump, and is also the moving shaft of the meshing cam and the cooling fan. The helical gear set at the other end can be reversed and meshed with the through shaft in the middle of the front and rear ends of the transmission as the output of the power take-off device through forward and backward movement.

The dual-combustion reciprocating slide valve engine has two working chambers. During a cycle, each working chamber is fed with gas twice, the fuel injection gun sprays oil twice, and a combustible mixture is formed in the chamber twice. Combustion, expansion and push The slide valve does work twice; through the exhaust valve and the scavenging valve (nozzle), the gas is sprayed twice to the impeller blade of the dead center generator (after the work of the working chamber); the gas enters the exhaust gas turbocharger after half a circle of rotation in the blade wheel and then emission.

The dual-energy engine of the present invention has the advantages of simple gas cylinder structure, small volume, high power, low noise, self-pressure constant volume and forced constant pressure, double exhaust performance, good reliability and long service life.

The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

Figures 1, 2, and 3 are schematic diagrams of the dual-energy engine's front, side, and side views, respectively.

Figures 4, 5, and 6 are schematic diagrams of a dual-energy reciprocating slide valve engine. In Fig. 1, 2, 3 (1) starter motor (2) oil spray gun (3) cam (4) reverse air supply pump (5) cooling water spray pipe (6) work slide valve (7) I-shaped head ( 8) Gas cylinder (9) Oil inlet cooling port (10) Cooling oil pipe (11) Thermostat (12) Exhaust port (13) Air guide pipe (14) Crank wheel flywheel (15) Generator (16) Oil return expansion Box (17) Transmission helical gear (18) Rocker connecting rod (19) Governor (20) Gas cylinder end cover (21) Synchronous shaft (22) Exhaust gas turbocharger (23) Dead point power generator (24) Centrifugal clutch Gear (25) Oil filter (26) Cooling water pump and fan (27) Safety intake valve (28) Radiator (29) High pressure intake valve (30) Low pressure intake valve (31) Scavenging valve (32) Fuel Filter (33) power take-off (34) oil pump (35) fixture (36) oil sump (37) air filter (38) case cover (39) electric glow plug.

As can be seen from Fig. 1, 2, 3: the present invention mainly is made up of five parts such as gas cylinder, crank-link mechanism, reverse air supply pump, dead center work device and generator, exhaust gas turbocharger.

The structure of the dual-energy engine: a crank linkage mechanism is set on the outside of the engine and the inside of the reverse air supply pump, and a high-pressure intake valve (29) is set in the two end covers (20) of the gas cylinder (8) of the dual-combustion engine Low-pressure intake valve (30) scavenging valve (31) fuel injection gun head (2) electric glow plug (39) and reverse air supply pump (4) gas distribution oil supply cam (3) slide valve ( 6) There is an exhaust port (12) at the bottom dead center of the slide valve stroke. This exhaust port is also the nozzle of the power generator at the end point. Connected; the helical gear (17) at the coaxial end of the crank wheel meshes with the power output device (33) of the through shaft, and the helical gear of the through shaft is shifted forward and backward to complete the reversing and the power of the engine by the power output device (33) OUTPUT.

The gas distribution system of the engine is divided into two sets of low-pressure and high-pressure systems, which respectively complete the scavenging and two-time intake of the dual-combustion reciprocating slide valve engine. The low-pressure scavenging and gas distribution system consists of an air filter (37), an exhaust gas turbocharger (22), a low-pressure intake valve (30), a scavenging valve (31), a safety inlet light oil volatilization valve (27), and a dead point power generator (23) and cam (3) form. The high-pressure charging system consists of an exhaust gas turbocharger (22), a reverse air supply pump (4), a high-pressure charging valve (29), a cam (3) and a dead center power generator (22). Its working process: first, the starter motor (1) drives the meshing wheel to rotate the whole machine, and the exhaust gas turbocharger (22) provides a communication air path through the reverse air supply pump (4), and the scavenging valve (31) and The low-pressure intake valve (30) is controlled by the ups and downs of the cam (3), and supplies the initial work of the dual-burning reciprocating slide valve engine with the process of scavenging and air distribution compression. The second combustion is to strengthen the air charge, and its gas source is provided by the exhaust gas turbocharger (22) and the reverse air supply pump (4) of the two-stage compression, and the first combustion action stroke is completed at the working slide valve to 1/ At 2 o'clock, the high-pressure intake valve (29) is controlled by the cam (3) to inflate the working cavity.

The fuel supply system of engine is also high and low two sets of facilities, is made up of governor (19) fuel injection gun (2) (wheel oil pump, fuel injection pump and fuel injector joint) cam (3). Cam (3) is coaxially connected with the crank wheel. Air distribution and oil supply are realized according to cam-shaped undulation control. The return oil path enters the oil return expansion tank, and flows back to the large fuel tank after filtration or sedimentation. The volatile gas of light fuel oil passes through the pressure gas path and opens the safety valve to aerate and then enters the dead center power generator (23) to burn and drive the impeller to perform work.

The cooling system of the engine adopts two forms of water cooling and oil cooling. It consists of an oil filter (25), a rotor type oil pump (34), an oil inlet pipe (10), a cooling oil port (9), an oil pool (36), a cooling fan (6) and a centrifugal fan (6). Type water pump coaxial radiator (28) thermostat (11). Centrifugal water pump drives cooling water to circulate compulsively, through radiator (28) from gas cylinder middle cooling water spray pipe (5) (far large hole, near small hole) water is sprayed on the gas cylinder surface to take away the residual heat of gas cylinder surface, again through The dead point power generator (23) casing flows back to the radiator to form a water cooling cycle. Oily cooling is achieved by the rotor oil pump (34) oil pipe (10) and cooling oil port (9) to cool the inner chamber of the slide valve. After cooling, the machine oil flows back to the oil pool (36) and is pumped into the radiator to form this cycle.

The starting of the engine is driven by the starter motor (1) meshing with the ring gear of the crank wheel (14), and the reverse air supply pump (4) is inflated through the high-pressure intake valve (29), and the fuel injection combustion pushes the slide valve to do work. run.

The drive train of engine is made up of slide valve (6) I-beam (7) rocking connecting rod (18) crank wheel (14) helical gear (17) synchronizing shaft (21) and power take-off (33). The reciprocating linear motion of the slide valve is converted into the rotary motion of the crank wheel flywheel (14) through the I-shaped head (7) rocker connecting rod (18), and then through the shaft of the gas turbine at the dead point (23) and the transmission generator (15) The power of the other end transmission helical gear meshing through shaft (33) is output at last. The gear rack of the governor (19) is meshed with the gear of the oil spray gun to realize the speed regulating work combining braking and operation.

In Fig. 4, 5, 6 (40 (41) is two working chambers of a group of dual-burning reciprocating slide-valve engines. The working slide valve (6) of dual-burning reciprocating slide-valve engines and the reverse air supply pump (4 ) share an I-shaped head (7) on the outside of one end of the gas cylinder and the inside of one end of the reverse air supply pump, respectively, a crank wheel linkage mechanism is provided, and the two crank wheel working phases are an angle of 180 degrees. Among Fig. 4, the working chamber (41) has been air intake and compression is over, the fuel injection gun (2) in this chamber starts to spray oil, and the combustion gas in the working chamber expands to push the slide valve (6) to do work; the working chamber (40) completes the first self- Discharge at a constant pressure, and the nozzle of the dead center power generator enters the waste heat gas to drive the gas wheel to do work. At this time, the crank wheel works at the flat angle, and the working slide valve realizes the dead center work at the top dead center. The slide valve (6) starts to move to the left Move, the scavenging valve opens and the slide valve compresses the stroke to forcibly drive up the residual gas, which enters the dead center power generator (23) through the air guide pipe (13). When the working slide valve (6) travels to 2/3 of the whole process, the low-pressure intake valve (30) is opened, and the gas source of the exhaust gas turbocharger (22) sweeps the residual gas and fills it with fresh air, and at 3/4 of the working stroke, the scavenging valve (31) and the low-pressure intake valve (30) are fully closed At this time, when the working slide valve is compressed to 0 degrees, the first fuel injection in the working chamber (40) is ignited by the self-pressure and electric glow plug (39), and the combustion and expansion gas pushes the slide valve to do work as shown in Figure 6 , the high-pressure air intake valve (29) of the working chamber (41) is opened, the reverse air supply pump (4) provides high-pressure air, and then the fuel injection gun (2) injects fuel into the working chamber to form a second combustible The mixed gas is ignited by the electric glow plug (39) or naturally in the high-temperature mixed gas, the combustion gas expands and pushes the slide valve to do work, and the waste heat gas enters the nozzle of the dead center power generator (23) at the exhaust port (14). In 6, the compression has been completed in the (40) working chamber, that is, the initial working process, and the reciprocating slide valve engine (40) (41) is the same working process, thus forming a double-inlet, double-exhaust, double-supply fuel, repeated cycle The cyclic work process of heat work exchange.

Claims (1)

1. A thermal power machine, a dual-energy engine that reciprocates with slide valves and gas turbine drives to generate power and work. It consists of a gas cylinder, a working slide valve, a reverse air supply pump, a fuel injection gun, a dead-point power generator, and a generator. , an oil pump, an exhaust gas turbocharger, a radiator, etc., the present invention is characterized in that: the reciprocating slide valve type engine works and the gas turbine transmission power generation of the dead point work device is suitable for operating work, and the dual-energy engine mainly includes: gas cylinder ( 8) The intake valves (29) and (30), the scavenging valve (31), the fuel injection gun (2), the electric glow plug (39), the oil supply and gas distribution cam (3), and The working slide valve (6) in the gas cylinder is connected to the rocker connecting rod (18) between the I-shaped head (7) and the crank flywheel (14), and the central axis of the slide valve and the reverse air supply pump (4) reciprocate and rotate Compressed air and work, the reciprocating stroke of the slide valve is set at the stop point of the exhaust port (12), the inlet nozzle of the work device (23) at the stop point, and the gas drives the gas wheel shaft to rotate the transmission generator to generate electricity, between the reciprocating slide valve and the gas wheel Output electrical energy and mechanical power through clutch operation.

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