CN103032156A - Expansion working medium energy multilevel utilization device for internal combustion engine and using method thereof - Google Patents
Expansion working medium energy multilevel utilization device for internal combustion engine and using method thereof Download PDFInfo
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Abstract
The invention discloses an expansion working medium energy multilevel utilization device for an internal combustion engine and a using method thereof. The expansion working medium multilevel utilization device comprises the internal combustion engine, a piston-type expansion machine and a compressed gas source; the compressed gas source comprises a high pressure gas storage tank, a safety valve, a switch valve, a first compressed air injection pipeline and a second compressed air injection pipeline; the first compressed air injection pipeline comprises a first pressure regulating valve, a first flow regulating valve, a first pressure stabilizing box, a first high-speed solenoid valve, a first compressed air nozzle and a connecting pipeline; and the second compressed air injection pipeline comprises a second pressure regulating valve, a second flow regulating valve, a second pressure stabilizing box, a second high-speed solenoid valve, a second compressed air nozzle and a connecting pipeline. According to the expansion working medium energy multilevel utilization device for the internal combustion engine and the using method thereof, the compressed air injection pipelines are utilized to control the injection pressure, flow and time of the compressed air and simultaneously control the exhaust angle of advance of the internal combustion engine and the exhaust closure angle of the piston-type expansion machine, so that the expansion working medium energy multilevel utilization of the internal combustion engine can be realized to the maximum extent under different working conditions.
Description
Technical field
The invention belongs to the energy-saving and emission-reduction field, relate to a kind of internal-combustion engine expansion working medium energy multi-level utilized device and using method thereof.
Background technique
Along with the shortage of oil, the pollution of environment, the energy-conservation common recognition that has become the whole mankind.For the internal-combustion engine industry, how Reduce fuel consuming rate, improve the focus that fuel utilization ratio has become research.There are some researches show that the expansion working medium energy that the motor fuel burning produces only is used effectively less than 40%, remaining energy is mainly taken away by exhaust and cooling liquid, causes the waste of the energy and the thermo-pollution of environment.Take full advantage of internal-combustion engine expansion working medium energy, can significantly improve fuel of internal combustion engine Economy, environmental contamination reduction.Ilmor company and Scuderia company adopt and engine exhaust gas is entered another cylinder expand and reclaim expansion working medium energy; Said method reclaims internal-combustion engine expansion working medium energy by single channel, and capacity usage ratio is not high.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the invention is to propose a kind of internal-combustion engine expansion working medium energy multi-level utilized device and using method thereof.
The present invention adopts following technological scheme:
A kind of internal-combustion engine expansion working medium energy multi-level utilized device comprises internal-combustion engine, piston expansion engine and compressed gas source; Internal-combustion engine is provided with internal combustion engine, and piston expansion engine is provided with the piston expansion engine piston; Internal-combustion engine links to each other with an end of internal-combustion engine vent-pipe by the I. C. engine exhaust door, the other end of internal-combustion engine vent-pipe is communicated with an end of piston expansion engine suction tude, and piston expansion engine links to each other with the other end of piston expansion engine suction tude by the piston expansion engine intake valve; Piston expansion engine links to each other with the piston expansion engine outlet pipe by the piston expansion engine exhaust valve; Compressed gas source comprises high pressure tank, safety valve, switch valve, the first blast injection pipeline and the second blast injection pipeline; The first blast injection pipeline comprises the first pressure regulator valve, first flow modulating valve, the first pressure stabilizer, the first high-speed electromagnetic valve, the first compressed-air atomizer and connecting pipeline; The second blast injection pipeline comprises the second pressure regulator valve, second adjustable valve, the second pressure stabilizer, the second high-speed electromagnetic valve, the second compressed-air atomizer and connecting pipeline; The first compressed-air atomizer of the first blast injection pipeline, the first high-speed electromagnetic valve, the first pressure stabilizer, first flow modulating valve, the first pressure regulator valve are connected with switch valve by connecting pipeline successively; The second compressed-air atomizer of the second blast injection pipeline, the second high-speed electromagnetic valve, the second pressure stabilizer, second adjustable valve, the second pressure regulator valve are connected with switch valve by connecting pipeline successively; The first compressed-air atomizer is installed in the internal-combustion engine cylinder head; The second compressed-air atomizer is installed in the piston expansion engine cylinder head; High pressure tank one end connection safety valve, the other end by switch valve respectively with the first blast injection pipeline and the second blast injection pipeline connection; The piston expansion engine discharge capacity is greater than engine swept volume; Described internal-combustion engine is oil-burning internal combustion engine or gas internal-combustion engine, internal-combustion piston engine or rotary combustion engine, single-cylinder engine or multi-cylinder engine, compression ignition internal combustion engine or ignition internal combustion engine.
A kind of internal-combustion engine expansion working medium energy multi-level utilized device comprises internal-combustion engine, piston expansion engine and compressed gas source; Internal-combustion engine is provided with internal combustion engine, and piston expansion engine is provided with the piston expansion engine piston; Internal-combustion engine links to each other with an end of internal-combustion engine vent-pipe by the I. C. engine exhaust door, and the other end of internal-combustion engine vent-pipe links to each other with piston expansion engine by the piston expansion engine suction tude; Piston expansion engine links to each other with the piston expansion engine outlet pipe by the piston expansion engine exhaust valve; Compressed gas source comprises high pressure tank, safety valve, switch valve, the first blast injection pipeline and the second blast injection pipeline; The first blast injection pipeline comprises the first pressure regulator valve, first flow modulating valve, the first pressure stabilizer, the first high-speed electromagnetic valve, the first compressed-air atomizer and connecting pipeline; The second blast injection pipeline comprises the second pressure regulator valve, second adjustable valve, the second pressure stabilizer, the second high-speed electromagnetic valve, the second compressed-air atomizer and connecting pipeline; The first compressed-air atomizer of the first blast injection pipeline, the first high-speed electromagnetic valve, the first pressure stabilizer, first flow modulating valve, the first pressure regulator valve are connected with switch valve by connecting pipeline successively; The second compressed-air atomizer of the second blast injection pipeline, the second high-speed electromagnetic valve, the second pressure stabilizer, second adjustable valve, the second pressure regulator valve are connected with switch valve by connecting pipeline successively; The first compressed-air atomizer is installed in the internal-combustion engine cylinder head; The second compressed-air atomizer is installed in the piston expansion engine cylinder head; High pressure tank one end connection safety valve, the other end by switch valve respectively with the first blast injection pipeline and the second blast injection pipeline connection; The piston expansion engine discharge capacity is greater than engine swept volume; Described internal-combustion engine is oil-burning internal combustion engine or gas internal-combustion engine, internal-combustion piston engine or rotary combustion engine, single-cylinder engine or multi-cylinder engine, compression ignition internal combustion engine or ignition internal combustion engine.
Described piston expansion engine outlet pipe connects emission-control equipment and/or exhaust gas turbocharge device.
The using method of described internal-combustion engine expansion working medium energy multi-level utilized device, working procedure is as follows: when internal combustion engine operation, the internal-combustion engine air amount, through after the compression stroke, combustion in IC engine produces high temperature and high pressure gas working medium, the acting of promotion internal combustion engine, this process is the utilization of the expansion working medium energy first order; Proceed to certain phase at expansion stroke, the first high-speed electromagnetic valve is opened, compressed gas source sprays pressurized air by the first compressed-air atomizer to internal-combustion engine, expansion working medium forms the High Temperature High Pressure mixed gas in pressurized air and the internal-combustion engine, continue to promote the internal combustion engine acting, this process is that the expansion working medium energy second level utilizes; After expansion stroke finished, mixed gas entered piston expansion engine by pipeline in the internal-combustion engine, and piston expansion engine utilizes mixed gas to expand, and this process is that the expansion working medium energy third level utilizes; Piston expansion engine is to extraneous discharge section mixed gas subsequently, and will remain mixed gas and compress; When near, the second high-speed electromagnetic valve is opened, compressed gas source sprays pressurized air by the second compressed-air atomizer to piston expansion engine, gas mixes in pressurized air and the piston expansion engine, form mixed gas, pushing piston formula decompressor does work again, and this process is the utilization of the expansion working medium energy fourth stage; Gas is all discharged in the last piston expansion engine.
For the internal-combustion engine of an operating mode, according to operating point fixedly compressed gas source spray compressed-air actuated pressure, flow and constantly and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine and piston expansion engine; Internal-combustion engine for lineman's condition and face operating mode, according to internal-combustion engine lineman condition and face operating mode, regulate compressed gas source and spray compressed-air actuated pressure, flow and the moment and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine and piston expansion engine, make internal-combustion engine under different operating modes, all can utilize to greatest extent expansion working medium energy.
Compared with prior art, the present invention has following beneficial effect:
1. can realize the utilization of internal-combustion engine expansion working medium energy multi-level, take full advantage of fuel combustion and release energy, improve fuel utilization efficient, environmental contamination reduction.
2. utilize pressure regulator valve, flow control valve and high-speed electromagnetic valve can effectively control blast injection pressure, flow and the moment, controlling combustion engine exhaust advance angle and piston expansion engine exc. angle make internal-combustion engine all can utilize to greatest extent expansion working medium energy under different operating modes simultaneously.
Description of drawings
Fig. 1 is internal-combustion engine expansion working medium energy multi-level utilized device structural representation;
Fig. 2 is that internal-combustion engine expansion working medium energy multi-level utilizes the using method schematic representation.
Fig. 3 is gas pressure change curve synoptic diagram in internal-combustion engine and the piston expansion engine.
Be labeled as among the figure: internal-combustion engine 1, internal-combustion engine vent-pipe 2, I. C. engine exhaust door 3, the first high-speed electromagnetic valve 4, the first pressure stabilizer 5, the second pressure stabilizer 6, the second high-speed electromagnetic valve 7, piston expansion engine suction tude 8, piston expansion engine intake valve 9, piston expansion engine outlet pipe 10, piston expansion engine exhaust valve 11, the second compressed-air atomizer 12, piston expansion engine 13, piston expansion engine piston 14, safety valve 15, high pressure tank 16, switch valve 17, the second pressure regulator valve 18, second adjustable valve 19, the first pressure regulator valve 20, first flow modulating valve 21, internal combustion engine 22, the first compressed-air atomizer 23.
Embodiment
Be further elaborated below in conjunction with accompanying drawing 1, accompanying drawing 2 and 3 pairs of technical solution of the present invention of accompanying drawing.
A kind of internal-combustion engine expansion working medium energy multi-level utilized device comprises internal-combustion engine 1, piston expansion engine 13 and compressed gas source; Internal-combustion engine 1 is provided with internal combustion engine 22, and piston expansion engine 13 is provided with piston expansion engine piston 14; Internal-combustion engine 1 links to each other with an end of internal-combustion engine vent-pipe 2 by I. C. engine exhaust door 3, the other end of internal-combustion engine vent-pipe 2 is communicated with an end of piston expansion engine suction tude 8, and piston expansion engine 13 links to each other with the other end of piston expansion engine suction tude 8 by piston expansion engine intake valve 9; Piston expansion engine 13 links to each other with piston expansion engine outlet pipe 10 by piston expansion engine exhaust valve 11; Compressed gas source comprises high pressure tank 16, safety valve 15, switch valve 17, the first blast injection pipeline and the second blast injection pipeline; The first blast injection pipeline comprises the first pressure regulator valve 20, first flow modulating valve 21, the first pressure stabilizer 5, the first high-speed electromagnetic valve 4, the first compressed-air atomizer 23 and connecting pipeline; The second blast injection pipeline comprises the second pressure regulator valve 18, second adjustable valve 19, the second pressure stabilizer 6, the second high-speed electromagnetic valve 7, the second compressed-air atomizer 12 and connecting pipeline; The first compressed-air atomizer 23 of the first blast injection pipeline, the first high-speed electromagnetic valve 4, the first pressure stabilizer 5, first flow modulating valve 21, the first pressure regulator valve 20 are connected connection by connecting pipeline successively with switch valve; The second compressed-air atomizer 12 of the second blast injection pipeline, the second high-speed electromagnetic valve 7, the second pressure stabilizer 6, second adjustable valve 19, the second pressure regulator valve 18 are connected connection by connecting pipeline successively with switch valve; The first compressed-air atomizer 23 is installed in internal-combustion engine 1 cylinder head; The second compressed-air atomizer 12 is installed in piston expansion engine 13 cylinder heads; High pressure tank 16 1 end connection safety valves 15, the other end by switch valve 17 respectively with the first blast injection pipeline and the second blast injection pipeline connection; Piston expansion engine 13 discharge capacities are greater than internal-combustion engine 1 discharge capacity; Described internal-combustion engine 1 is oil-burning internal combustion engine or gas internal-combustion engine, internal-combustion piston engine or rotary combustion engine, single-cylinder engine or multi-cylinder engine, compression ignition internal combustion engine or ignition internal combustion engine.
Another internal-combustion engine expansion working medium energy multi-level utilized device, compare with said apparatus, remove piston expansion engine intake valve 9, in the 1 exhaust stroke stage of internal-combustion engine, internal-combustion engine 1 interior expansion working medium directly enters piston expansion engine 13 by I. C. engine exhaust door 3, internal-combustion engine vent-pipe 2 and piston expansion engine suction tude 8, when stating in realization the device identical function, simplified apparatus structure.It comprises internal-combustion engine 1, piston expansion engine 13 and compressed gas source; Internal-combustion engine 1 is provided with internal combustion engine 22, and piston expansion engine 13 is provided with piston expansion engine piston 14; Internal-combustion engine 1 links to each other with an end of internal-combustion engine vent-pipe 2 by I. C. engine exhaust door 3, and the other end of internal-combustion engine vent-pipe 2 links to each other with piston expansion engine 13 by piston expansion engine suction tude 8; Piston expansion engine 13 links to each other with piston expansion engine outlet pipe 10 by piston expansion engine exhaust valve 11; Compressed gas source comprises high pressure tank 16, safety valve 15, switch valve 17, the first blast injection pipeline and the second blast injection pipeline; The first blast injection pipeline comprises the first pressure regulator valve 20, first flow modulating valve 21, the first pressure stabilizer 5, the first high-speed electromagnetic valve 4, the first compressed-air atomizer 23 and connecting pipeline; The second blast injection pipeline comprises the second pressure regulator valve 18, second adjustable valve 19, the second pressure stabilizer 6, the second high-speed electromagnetic valve 7, the second compressed-air atomizer 12 and connecting pipeline; The first compressed-air atomizer 23 of the first blast injection pipeline, the first high-speed electromagnetic valve 4, the first pressure stabilizer 5, first flow modulating valve 21, the first pressure regulator valve 20 are connected connection by connecting pipeline successively with switch valve; The second compressed-air atomizer 12 of the second blast injection pipeline, the second high-speed electromagnetic valve 7, the second pressure stabilizer 6, second adjustable valve 19, the second pressure regulator valve 18 are connected connection by connecting pipeline successively with switch valve; The first compressed-air atomizer 23 is installed in internal-combustion engine 1 cylinder head; The second compressed-air atomizer 12 is installed in piston expansion engine 13 cylinder heads; High pressure tank 16 1 end connection safety valves 15, the other end by switch valve 17 respectively with the first blast injection pipeline and the second blast injection pipeline connection; Piston expansion engine 13 discharge capacities are greater than internal-combustion engine 1 discharge capacity; Described internal-combustion engine 1 is oil-burning internal combustion engine or gas internal-combustion engine, internal-combustion piston engine or rotary combustion engine, single-cylinder engine or multi-cylinder engine, compression ignition internal combustion engine or ignition internal combustion engine.
Described piston expansion engine outlet pipe 10 connects emission-control equipment and/or exhaust gas turbocharge device.
The using method of described internal-combustion engine expansion working medium energy multi-level utilized device, working procedure is as follows: when internal-combustion engine 1 operation, internal-combustion engine 1 air amount, through after the compression stroke, internal-combustion engine (1) burning produces high temperature and high pressure gas working medium, promote internal combustion engine 22 actings, this process is the utilization of the expansion working medium energy first order; Proceed to certain phase at expansion stroke, the first high-speed electromagnetic valve 4 is opened, compressed gas source sprays pressurized air by the first compressed-air atomizer 23 to internal-combustion engine 1, pressurized air and internal-combustion engine 1 interior expansion working medium form the High Temperature High Pressure mixed gas, continue to promote internal combustion engine 22 actings, this process is that the expansion working medium energy second level utilizes; After expansion stroke finished, internal-combustion engine 1 interior mixed gas entered piston expansion engine 13 by pipeline, and piston expansion engine 13 utilizes mixed gas to expand, and this process is that the expansion working medium energy third level utilizes; Piston expansion engine 13 is to extraneous discharge section mixed gas subsequently, and will remain mixed gas and compress; When near, the second high-speed electromagnetic valve 7 is opened, compressed gas source sprays pressurized air by the second compressed-air atomizer 12 to piston expansion engine 13, pressurized air and piston expansion engine 13 interior gases mix, form mixed gas, pushing piston formula decompressor 13 does work again, and this process is the utilization of the expansion working medium energy fourth stage; Last piston expansion engine 13 interior gases are all discharged.
For the internal-combustion engine 1 of an operating mode, according to operating point fixedly compressed gas source spray compressed-air actuated pressure, flow and constantly and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine 1 and piston expansion engine 13; Internal-combustion engine 1 for lineman's condition and face operating mode, according to internal-combustion engine 1 lineman's condition and face operating mode, regulate compressed gas source and spray compressed-air actuated pressure, flow and the moment and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine 1 and piston expansion engine 13, make internal-combustion engine 1 under different operating modes, all can utilize to greatest extent expansion working medium energy.
As shown in Figure 1, after internal-combustion engine 1 compression stroke finished, electronic control unit control oil spout igniting (compression ignition internal combustion engine is without igniting process) made internal-combustion engine 1 interior generation High Temperature High Pressure expansion working medium, promoted internal combustion engine 22 descending actings.This process is the utilization of the internal-combustion engine expansion working medium energy first order.
When internal combustion engine 22 went downwards to certain phase, electronic control unit was controlled the first high-speed electromagnetic valve 4 and is sprayed pressurized air to internal-combustion engine 1.Pressurized air and internal-combustion engine 1 interior gas mix formation High Temperature High Pressure mixed gas, continue to promote internal combustion engine 22 descending actings.This process is that the internal-combustion engine expansion working medium energy second level utilizes.
Electronic control unit controlling combustion engine exhaust valve 3 start-up times make internal-combustion engine 1 interior mixed gas enter internal-combustion engine vent-pipe 2 subsequently.Piston expansion engine piston 14 is in the descending stage at this moment.Internal-combustion engine 1 interior mixed gas enters piston expansion engine 13, the 14 descending actings of pushing piston formula decompressor piston through piston expansion engine suction tude 8 and piston expansion engine intake valve 9.This process is that the internal-combustion engine expansion working medium energy third level utilizes.
When piston expansion engine piston 14 went downwards to certain phase, electronic control unit control piston formula decompressor exhaust valve 11 was opened, and this moment, piston expansion engine 13 interior gases entered piston expansion engine outlet pipe 10 by piston expansion engine exhaust valve 11.When piston expansion engine piston 14 is up to certain phase, electronic control unit control piston formula decompressor exhaust valve 11 cuts out, and residual gas is stored in the piston expansion engine 13.Subsequently piston expansion engine piston 14 continuation are up, compression piston type decompressor 13 gas in the jar.
When piston expansion engine piston 14 rises to certain phase, electronic control unit is controlled the second solenoid valve 7 and is sprayed pressurized air to piston expansion engine 13, mix formation mixed gas, the 14 descending actings of pushing piston formula decompressor piston with gas in piston expansion engine 13 cylinders.This process is the utilization of the internal-combustion engine expansion working medium energy fourth stage.
When piston expansion engine piston 14 goes downwards to certain phase, electronic control unit control piston formula decompressor exhaust valve 11 is opened.Piston expansion engine 13 interior gases are all discharged through piston expansion engine exhaust valve 11 and piston expansion engine outlet pipe 10.
High-pressure air source keeps discontinuity to supply with pressurized air to internal-combustion engine 1 and piston expansion engine 13 at system's run duration.When system brought into operation, switch valve 17 was opened.Pressurized air enters the first pressure regulator valve 20 and the second pressure regulator valve 18 from high pressure tank 16 through pipeline.The first pressure regulator valve 20 and the second pressure regulator valve 18 are regulated respectively blast injection pressure according to demand.Enter respectively first flow modulating valve 21 and second adjustable valve 19 through pressure controlled pressurized air; First flow modulating valve 21 and second adjustable valve 19 are regulated respectively the blast injection flow according to demand.Enter respectively the first pressure stabilizer 5 and the second pressure stabilizer 6, constant compression air pressure through the pressurized air after the Flow-rate adjustment.Arrive respectively the first high-speed electromagnetic valve 4 and the second high-speed electromagnetic valve 7 through the pressurized air after the pressure stability.The first high-speed electromagnetic valve 4 and the second high-speed electromagnetic valve 7 are controlled respectively blast injection constantly according to demand.Last pressurized air enters respectively internal-combustion engine 1 and piston expansion engine 13 respectively by the first compressed-air atomizer 23 and the second compressed-air atomizer 12.
As shown in Figure 2, when internal-combustion engine 1 is in expansion stroke, this moment, piston expansion engine 13 was in exhaust stroke.Internal-combustion engine 1 interior expansion working medium expands and does work, and in the expansion stroke later stage, the first high-speed electromagnetic valve 4 sprays pressurized air to internal-combustion engine 1.I. C. engine exhaust door 3 and piston expansion engine intake valve 9 are opened subsequently, and internal-combustion engine 1 is in exhaust stroke, and piston expansion engine 13 is in intake stroke.Mixed gas enters piston expansion engine 13 through internal-combustion engine vent-pipe 2 and piston expansion engine suction tude 8.I. C. engine exhaust door 3 and piston expansion engine exhaust valve 11 are closed subsequently, and internal-combustion engine 1 exhaust stroke finishes to enter intake stroke, and piston expansion engine 13 intake strokes finish to enter exhaust stroke.Internal-combustion engine 1 intake stroke is identical with tradition.Piston expansion engine 13 exhaust strokes proceed to certain phase, and piston expansion engine exhaust valve 11 cuts out, and a part of waste gas is remained in the piston expansion engine 13.Internal-combustion engine 1 enters compression stroke subsequently, and piston expansion engine 13 enters expansion stroke.This moment, the second high-speed electromagnetic valve 7 sprayed pressurized air to piston type expansion 13.Last internal-combustion engine 1 enters expansion stroke again, and piston expansion engine 13 enters exhaust stroke again.
As shown in Figure 3, during internal-combustion engine 1 was in expansion stroke, internal-combustion engine 1 interior gas was along with internal combustion engine 22 descending pressure reduce gradually.When internal combustion engine went downwards to a certain degree, the first high-speed electromagnetic valve 4 sprayed pressurized air to internal-combustion engine 1, absorbs the gas in the jar heat, makes internal-combustion engine 1 interior gas pressure continue to be in higher state.This moment, piston expansion engine 13 was in exhaust phase, and piston expansion engine 13 internal pressures reduce gradually.Internal-combustion engine 1 enters exhaust stroke subsequently, and internal-combustion engine 1 exhaust enters in the piston expansion engine 13, and internal-combustion engine 1 internal pressure reduces gradually, the rear reduction and piston expansion engine 13 interior gas pressures raise first.Internal-combustion engine 1 enters intake stroke subsequently, and piston expansion engine 13 enters exhaust stroke.Because piston expansion engine exhaust valve 11 cuts out during exhaust stroke, piston expansion engine 13 in-cylinder pressures are risen.Internal-combustion engine 1 enters compression stroke subsequently, and internal-combustion engine 1 interior gas pressure rises gradually, and in compression stroke latter stage, because fuel combustion, rapid increase trend appears in pressure.And spray into owing to pressurized air in the piston expansion engine 13, pressure keeps higher level, and blast injection stops subsequently, and piston expansion engine 13 internal pressures descend gradually.
Engine conditions can be divided into an operating mode, lineman's condition and face operating mode.For an operating mode, for the internal-combustion engine of an operating mode, according to operating point fixedly compressed gas source spray compressed-air actuated pressure, flow and constantly and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine and piston expansion engine; Internal-combustion engine for lineman's condition and face operating mode, according to internal-combustion engine lineman condition and face operating mode, regulate compressed gas source and spray compressed-air actuated pressure, flow and the moment and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine and piston expansion engine, make internal-combustion engine under different operating modes, all can utilize to greatest extent expansion working medium energy.
Claims (5)
1. an internal-combustion engine expansion working medium energy multi-level utilized device is characterized in that it comprises internal-combustion engine (1), piston expansion engine (13) and compressed gas source; Internal-combustion engine (1) is provided with internal combustion engine (22), and piston expansion engine (13) is provided with piston expansion engine piston (14); Internal-combustion engine (1) links to each other with an end of internal-combustion engine vent-pipe (2) by I. C. engine exhaust door (3), the other end of internal-combustion engine vent-pipe (2) is communicated with an end of piston expansion engine suction tude (8), and piston expansion engine (13) links to each other with the other end of piston expansion engine suction tude (8) by piston expansion engine intake valve (9); Piston expansion engine (13) links to each other with piston expansion engine outlet pipe (10) by piston expansion engine exhaust valve (11); Compressed gas source comprises high pressure tank (16), safety valve (15), switch valve (17), the first blast injection pipeline and the second blast injection pipeline; The first blast injection pipeline comprises the first pressure regulator valve (20), first flow modulating valve (21), the first pressure stabilizer (5), the first high-speed electromagnetic valve (4), the first compressed-air atomizer (23) and connecting pipeline; The second blast injection pipeline comprises the second pressure regulator valve (18), second adjustable valve (19), the second pressure stabilizer (6), the second high-speed electromagnetic valve (7), the second compressed-air atomizer (12) and connecting pipeline; First compressed-air atomizer (23) of the first blast injection pipeline, the first high-speed electromagnetic valve (4), the first pressure stabilizer (5), first flow modulating valve (21), the first pressure regulator valve (20) are connected 17 by connecting pipeline with switch valve successively) connect; Second compressed-air atomizer (12) of the second blast injection pipeline, the second high-speed electromagnetic valve (7), the second pressure stabilizer (6), second adjustable valve (19), the second pressure regulator valve (18) are connected 17 by connecting pipeline with switch valve successively) connect; The first compressed-air atomizer (23) is installed in internal-combustion engine (1) cylinder head; The second compressed-air atomizer (12) is installed in piston expansion engine (13) cylinder head; High pressure tank (16) one end connection safety valves (15), the other end by switch valve (17) respectively with the first blast injection pipeline and the second blast injection pipeline connection; Piston expansion engine (13) discharge capacity is greater than internal-combustion engine (1) discharge capacity; Described internal-combustion engine (1) is oil-burning internal combustion engine or gas internal-combustion engine, internal-combustion piston engine or rotary combustion engine, single-cylinder engine or multi-cylinder engine, compression ignition internal combustion engine or ignition internal combustion engine.
2. an internal-combustion engine expansion working medium energy multi-level utilized device is characterized in that it comprises internal-combustion engine (1), piston expansion engine (13) and compressed gas source; Internal-combustion engine (1) is provided with internal combustion engine (22), and piston expansion engine (13) is provided with piston expansion engine piston (14); Internal-combustion engine (1) links to each other with an end of internal-combustion engine vent-pipe (2) by I. C. engine exhaust door (3), and the other end of internal-combustion engine vent-pipe (2) links to each other with piston expansion engine (13) by piston expansion engine suction tude (8); Piston expansion engine (13) links to each other with piston expansion engine outlet pipe (10) by piston expansion engine exhaust valve (11); Compressed gas source comprises high pressure tank (16), safety valve (15), switch valve (17), the first blast injection pipeline and the second blast injection pipeline; The first blast injection pipeline comprises the first pressure regulator valve (20), first flow modulating valve (21), the first pressure stabilizer (5), the first high-speed electromagnetic valve (4), the first compressed-air atomizer (23) and connecting pipeline; The second blast injection pipeline comprises the second pressure regulator valve (18), second adjustable valve (19), the second pressure stabilizer (6), the second high-speed electromagnetic valve (7), the second compressed-air atomizer (12) and connecting pipeline; First compressed-air atomizer (23) of the first blast injection pipeline, the first high-speed electromagnetic valve (4), the first pressure stabilizer (5), first flow modulating valve (21), the first pressure regulator valve (20) are connected 17 by connecting pipeline with switch valve successively) connect; Second compressed-air atomizer (12) of the second blast injection pipeline, the second high-speed electromagnetic valve (7), the second pressure stabilizer (6), second adjustable valve (19), the second pressure regulator valve (18) are connected 17 by connecting pipeline with switch valve successively) connect; The first compressed-air atomizer (23) is installed in internal-combustion engine (1) cylinder head; The second compressed-air atomizer (12) is installed in piston expansion engine (13) cylinder head; High pressure tank (16) one end connection safety valves (15), the other end by switch valve (17) respectively with the first blast injection pipeline and the second blast injection pipeline connection; Piston expansion engine (13) discharge capacity is greater than internal-combustion engine (1) discharge capacity; Described internal-combustion engine (1) is oil-burning internal combustion engine or gas internal-combustion engine, internal-combustion piston engine or rotary combustion engine, single-cylinder engine or multi-cylinder engine, compression ignition internal combustion engine or ignition internal combustion engine.
3. internal-combustion engine expansion working medium energy multi-level utilized device as claimed in claim 1 or 2 is characterized in that, described piston expansion engine outlet pipe (10) connects emission-control equipment and/or exhaust gas turbocharge device.
4. the using method of an internal-combustion engine expansion working medium energy multi-level utilized device as claimed in claim 1, it is characterized in that, working procedure is as follows: when internal-combustion engine (1) moves, internal-combustion engine (1) air amount, through after the compression stroke, internal-combustion engine (1) burning produces high temperature and high pressure gas working medium, promotes internal combustion engine (22) acting, and this process is the utilization of the expansion working medium energy first order; Proceed to certain phase at expansion stroke, the first high-speed electromagnetic valve (4) is opened, compressed gas source sprays pressurized air by the first compressed-air atomizer (23) to internal-combustion engine 1, the interior expansion working medium of pressurized air and internal-combustion engine (1) forms the High Temperature High Pressure mixed gas, continue to promote internal combustion engine (22) acting, this process is that the expansion working medium energy second level utilizes; After expansion stroke finished, the interior mixed gas of internal-combustion engine (1) entered piston expansion engine (13) by pipeline, and piston expansion engine (13) utilizes mixed gas to expand, and this process is that the expansion working medium energy third level utilizes; Piston expansion engine (13) is to extraneous discharge section mixed gas subsequently, and will remain mixed gas and compress; When near, the second high-speed electromagnetic valve (7) is opened, compressed gas source sprays pressurized air by the second compressed-air atomizer (12) to piston expansion engine (13), the interior gas of pressurized air and piston expansion engine (13) mixes, form mixed gas, pushing piston formula decompressor (13) does work again, and this process is the utilization of the expansion working medium energy fourth stage; The last interior gas of piston expansion engine (13) is all discharged.
5. method as claimed in claim 4, it is characterized in that, for the internal-combustion engine (1) of an operating mode, according to operating point fixedly compressed gas source spray compressed-air actuated pressure, flow and constantly and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine (1) and piston expansion engine (13); Internal-combustion engine (1) for lineman's condition and face operating mode, according to internal-combustion engine (1) lineman's condition and face operating mode, regulate compressed gas source and spray compressed-air actuated pressure, flow and the moment and I. C. engine exhaust advance angle and piston expansion engine exc. angle to internal-combustion engine (1) and piston expansion engine (13), make internal-combustion engine (1) under different operating modes, all can utilize to greatest extent expansion working medium energy.
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| CN112682102A (en) * | 2020-12-24 | 2021-04-20 | 内蒙古科技大学 | Structure coupling type multistage pneumatic power machine |
| CN112814742A (en) * | 2021-02-08 | 2021-05-18 | 天津大学 | Air hybrid power homogeneous combustion two-stage expansion engine system and control method |
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