CN107218119B - Single-supercharger double-cylinder engine - Google Patents

Single-supercharger double-cylinder engine Download PDF

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Publication number
CN107218119B
CN107218119B CN201710677778.XA CN201710677778A CN107218119B CN 107218119 B CN107218119 B CN 107218119B CN 201710677778 A CN201710677778 A CN 201710677778A CN 107218119 B CN107218119 B CN 107218119B
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cylinder
valve
stroke
dead center
continuously
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CN107218119A (en
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孔闯
邱世军
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ANHUI HIGH-TECH POWER TECHNOLOGY Co.,Ltd.
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徐芝香
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/44—Passages conducting the charge from the pump to the engine inlet, e.g. reservoirs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/04—Mechanical drives; Variable-gear-ratio drives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1808—Number of cylinders two
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supercharger (AREA)

Abstract

The invention relates to the field of heat energy and power, in particular to a single-supercharger double-cylinder engine, which comprises: the first cylinder, the second cylinder, the supercharger and the communication channel I. The communication channel is connected with a first air inlet valve of the first air cylinder, a second air inlet valve of the second air cylinder and an exhaust valve of the supercharger; the phase difference between the phase of the first crank arm of the first cylinder and the phase difference between the phase of the second crank arm of the second cylinder is 360 degrees; the phase of the first crank arm of the first cylinder is 90 degrees different from the phase of the third crank arm of the supercharger. Has the advantages that: 1, the invention supplies compressed air to two cylinders at one time through a supercharger by a communication channel, thereby realizing the supercharging effect; 2, no obvious delay voltage increase phenomenon exists.

Description

Single-supercharger double-cylinder engine
Technical Field
The invention relates to the field of heat energy and power, in particular to a single-supercharger double-cylinder engine.
Background
According to the prior art, the proper supercharging device is adopted to improve the intake pressure of the engine so as to improve the intake density and the efficiency of the engine, but the supercharging device needs more energy and leads to a more complex system. The invention provides an effective supercharging device with simple structure, which is needed.
Disclosure of Invention
The invention provides a single-supercharger double-cylinder engine, which supplies compressed air to two cylinders at one time through a supercharger by a communication channel so as to realize the supercharging effect.
The invention is realized by the following steps: a single supercharger double-cylinder engine is a four-stroke internal combustion engine with two cylinders, comprising: two identical cylinders, i.e., cylinder one and cylinder two, the supercharger, communicate with channel one.
The cylinder I comprises a cylindrical hollow chamber, namely a combustion chamber I defined by the wall of the combustion chamber, and a reciprocating piston I driven by a crankshaft is arranged in the cylinder I; the first cylinder further comprises an inlet valve A, an inlet valve B and an exhaust valve I; air may enter the first combustion chamber from an air source, such as the ambient environment, through the first intake valve; the first inlet valve B is connected with the first communication channel, and air can enter the first combustion chamber from the first communication channel through the first inlet valve B; the first exhaust valve is used for exhausting exhaust gas from the combustion chamber.
The second cylinder comprises a cylindrical empty chamber, namely a second combustion chamber defined by the wall of the combustion chamber, and a second piston which is driven by the crankshaft and can reciprocate is arranged in the second combustion chamber; the cylinder II also comprises an intake valve II, an intake valve II and an exhaust valve II; air may enter combustion chamber two from an air source, such as ambient, through intake valve two; the air inlet valve diethyl is connected with the first communication channel, and air can enter the second combustion chamber from the first communication channel through the air inlet valve diethyl; and the second exhaust valve is used for exhausting the waste gas from the second combustion chamber.
The supercharger comprises a cylindrical chamber, i.e. a pressure chamber defined by pressure chamber walls, within which a reciprocatingly movable piston three is located, driven by the crankshaft. The supercharger also comprises a third inlet valve and a third exhaust valve; air may flow from an air source, such as ambient, through the intake valve and into the supercharger; the exhaust valve III is connected with the communication channel I, and air can flow to the communication channel I from the supercharger through the exhaust valve III; in this way, the air can be supplied from an air source, for example the surroundings, to the air chamber and can also be pressed out from the air chamber to the communication channel.
The communicating channel is an air moving channel and comprises three interfaces, wherein the interface I is connected with an inlet valve I B of the cylinder I, the interface II is connected with an inlet valve II of the cylinder II, the interface III is connected with an exhaust valve III of the supercharger, and the three interfaces are communicated with each other.
The first cylinder, the second cylinder and the supercharger share the same crankshaft; the phase difference between the phase of the first crank arm of the first cylinder and the phase difference between the phase of the second crank arm of the second cylinder is 360 degrees; the phase of the first crank arm of the first cylinder is 90 degrees different from the phase of the third crank arm of the supercharger. Such as: when the phase of crank arm one is 0 degrees, the phase of crank arm two is 360 degrees, and the phase of crank arm three is 90 degrees.
The invention has the beneficial effects that: 1, a specific structure is created, so that one supercharger supercharges and supplements air to two cylinders in a time-sharing manner, and the supercharging effect is realized; 2, the structure is simple, the manufacturing cost is low, and the reliability is high; 3, no obvious delay voltage increase phenomenon exists.
The invention relates to a single-supercharger double-cylinder engine which can be further improved into a two-stage supercharged engine, comprising a first-stage supercharging system, a second-stage supercharging system and an engine body; the first-stage supercharging system comprises a turbine, a gas compressor, a second communication channel, a third communication channel and a flow stabilizer, and waste gas turbine is used for supercharging; the second-stage supercharging system comprises a supercharger, a first communication channel and a second communication channel, wherein the supercharger is used for supercharging through mechanical movement of the supercharger; the engine body comprises a first cylinder, a second cylinder and a crankshaft; the flow stabilizer is a tank body with an opening at one end, is connected with the communicating channel two phase and is used for storing pressurized air, storing energy and stabilizing air pressure.
The air compressor of the first-stage supercharging system is connected with a first inlet valve, a second inlet valve and a third inlet valve of the second-stage supercharging system through a communication channel II; the first communicating channel of the second-stage supercharging system comprises three interfaces, wherein the first interface is connected with an inlet valve I of the first cylinder, the second interface is connected with an inlet valve II of the second cylinder, the third interface is connected with an exhaust valve III of the supercharger, and the three interfaces are communicated with each other; and the first exhaust valve and the second exhaust valve of the engine body are connected with the turbine of the first-stage supercharging system through a communication channel III.
The improved two-stage supercharged engine has the beneficial effects that: the air compressor compresses air, so that the second-stage supercharging system sucks air with higher pressure and density on the premise of unchanged volume, and a better supercharging effect is achieved; 2, due to the existence of the second-stage pressurization system, more air is sucked, and more waste gas is discharged, so that the turbine is driven to rotate more strongly and better, and the compressor is driven more strongly; therefore, the first-stage exhaust gas turbocharging system and the second-stage turbocharging system are mutually promoted, and a positive effect is generated.
In the present invention, necessary components, units or systems are provided where necessary according to the well-known technique in the engine field.
Drawings
FIG. 1 is a schematic diagram of a single supercharger two-cylinder engine.
Fig. 2 is a schematic view of a work cycle.
FIG. 3 is a schematic diagram of a process.
FIG. 4 is a diagram of a second process.
Fig. 5 is a schematic diagram of the process.
FIG. 6 is a process diagram.
Fig. 7 is a process diagram.
Fig. 8 is a process diagram.
Figure 9 is a seven schematic diagram of the process.
Fig. 10 process eight schematic.
FIG. 11 is a schematic diagram of a two-stage supercharged engine.
In the figure, 1 crankshaft, 2 communication channel I, 2.1 interface I, 2.2 interface II, 2.3 interface III, 3 communication channel II, 4 communication channel III, 5 turbine, 6 compressor, 7 flow stabilizer and 8 airflow directions.
10 cylinder one, 11 combustion chamber one, 12 piston one, 13 intake valve one, 14 intake valve one, 15 exhaust valve one, 16 exhaust passage one, 17 crank arm one, 18 spark plug one, 19 fuel injector one.
20 cylinder II, 21 combustion chamber II, 22 piston II, 23 intake valve II, 24 intake valve II, 25 exhaust valve II and 26 exhaust passage II.
30 superchargers, 31 air compression chambers, 32 pistons three, 33 inlet valves three, 35 exhaust valves three and 37 crank arms three.
Detailed Description
The first embodiment.
The invention is further described with reference to the accompanying description, figures 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 and 11.
Referring to fig. 1, a single supercharger two-cylinder engine is a four-stroke internal combustion engine with two cylinders, comprising: two identical cylinders, cylinder one (10) and cylinder two (20), a supercharger (30), communicating with channel one (2).
The first cylinder (10) comprises a cylindrical hollow chamber, namely a first combustion chamber (11) defined by the walls of the combustion chamber, and a first piston (12) which is driven by the crankshaft (1) and can reciprocate is arranged in the first combustion chamber; the cylinder I (10) further comprises an intake valve I (13), an intake valve I (14) and an exhaust valve I (15); air may enter the combustion chamber one (11) from an air source, such as the ambient environment, through the intake valve one (13); the first inlet valve B (14) is connected with the first communication channel (2), and air can enter the first combustion chamber (11) from the first communication channel (2) through the first inlet valve B (14); the first exhaust valve (15) is used for exhausting exhaust gas from the first combustion chamber (11).
The second cylinder (20) comprises a cylindrical hollow chamber, namely a second combustion chamber (21) defined by the walls of the combustion chamber, and a second piston (22) which is driven by the crankshaft (1) and can reciprocate is arranged in the second combustion chamber; the second cylinder (20) further comprises an intake valve II (23), an intake valve II (24) and an exhaust valve II (25); air may enter combustion chamber two (21) from an air source, such as ambient, through intake valve two (23); the inlet valve diethyl (24) is connected with the first communication channel (2), and air can enter the second combustion chamber (21) from the first communication channel (2) through the inlet valve diethyl (24); the second exhaust valve (25) is used to exhaust gas from the second combustion chamber (21).
The supercharger (30) comprises a cylindrical chamber, i.e. a pressure chamber (31) delimited by the walls of the pressure chamber (31), in which a reciprocatingly movable piston (32) driven by the crankshaft (1) is located. The supercharger (30) also comprises a third inlet valve (33) and a third exhaust valve (35); air may flow from an air source, such as ambient, through intake valve three (33) into the supercharger (30); the exhaust valve III (35) is connected with the communication channel I (2), and air can flow to the communication channel I (2) from the supercharger (30) through the exhaust valve III (35); in this way, the air can be supplied from an air source, for example the surroundings, to the air chamber (31) and can also be pressed out of the air chamber (31) into the first communication channel (2).
The first communication channel (2) is an air moving channel and comprises three interfaces, the first interface (2.1) is connected with a first inlet valve B (14) of the first cylinder (10), the second interface (2.2) is connected with a second inlet valve B (24) of the second cylinder (20), the third interface (2.3) is connected with a third exhaust valve (35) of the supercharger (30), and the three interfaces are communicated with each other.
The cylinder I (10), the cylinder II (20) and the supercharger (30) share the same crankshaft (1); the phase of the crank arm one (17) of the cylinder one (10) is 360 degrees out of phase with the phase of the crank arm two of the cylinder two (20); the phase of the crank arm one (17) of the cylinder one (10) is 90 degrees different from the phase of the crank arm three (37) of the supercharger (30). Such as: when the phase of crank arm one (17) is 0 degrees, the phase of crank arm two is 360 degrees, and the phase of crank arm three (37) is 90 degrees.
Further, in some examples, the volume of the supercharger (30) is equal to twice the volume of cylinder one (10). For the supercharger (30) to produce a significant effect, the density of the air provided by the supercharger (30) must be significantly greater than that of the natural intake air, and for a given rotational speed of the supercharger (30), the volume of the supercharger (30) is required, where the volume of the supercharger (30) is preferably twice the volume of the cylinder one (10).
Further, the first cylinder (10) and the second cylinder (20) are equal in volume.
The single supercharger, two-cylinder engine is further described as follows: see figure 1.
The supercharger (30) comprises a cylindrical chamber, i.e. a plenum chamber (31) bounded by plenum chamber (31) walls. A piston III (32) is movably disposed in the air compression chamber (31) and is connected to the crankshaft (1) through a crank arm III (37).
The supercharger (30) also comprises a third inlet valve (33) and a third exhaust valve (35); air may flow from an air source, such as ambient, through intake valve three (33) into the supercharger (30); air may flow from within the supercharger (30) to the communication passage one (2) via the exhaust valve three (35). In this way, the air can be supplied from an air source, for example the surroundings, to the air chamber (31) and can also be pressed out of the air chamber (31) into the first communication channel (2).
The first communication channel (2) is used as an air moving channel, receives compressed air from the supercharger (30), and distributes the compressed air to the first cylinder (10) and the second cylinder (20) according to the opening and closing conditions of the first intake valve and the second intake valve. In this way, the first communication passage (2) functions to transmit the compressed air.
Cylinder one (10) includes a combustion chamber one (11) defined by combustion chamber walls. The first piston (12) is movably disposed in the first combustion chamber (11) and is connected to the crankshaft (1) through a first crank arm (17). The first cylinder (10) further comprises a first spark plug (18) for releasing an ignition spark to the first combustion chamber (11). The first combustion chamber (11) also comprises a first fuel injector (19) for supplying and injecting fuel required for combustion.
The first cylinder (10) comprises a first intake valve (13) driven by the intake valve driving mechanism, a first intake valve (14) driven by the intake valve driving mechanism and a first exhaust valve (15) driven by the exhaust valve driving mechanism. In this example, the drive mechanism may be configured as a cam drive mechanism. Operating a drive mechanism of the first intake valve (13) to open and close the first intake valve to allow air from an air source, such as the ambient environment, to enter the first combustion chamber (11); similarly, the drive mechanism of the first intake valve B (14) can be operated to open and close the first intake valve so that air enters the first combustion chamber (11) from the first communication passage (2); similarly, the actuating mechanism of exhaust valve one (15) may be operated to open and close exhaust valve one (15) to expel combustion products from combustion chamber one (11) into exhaust passage one (16). In this way, intake air can be supplied to the combustion chamber one (11) through the air source, the communication passage one (2), and combustion products can be discharged from the combustion chamber one (11) to the exhaust passage one (16).
It will be appreciated that cylinder two (20) includes the same components as cylinder one (10) described above. Thus, intake air may be supplied to combustion chamber two (21) through air source, communication passage one (2), and combustion products may be exhausted from combustion chamber two (21) to exhaust passage two (26).
In the invention, one working cycle of the single-supercharger double-cylinder engine comprises eight continuous processes, which are as follows: as shown in figure 2.
Fig. 2 illustrates four consecutive strokes of each of the three components (cylinder one (10), cylinder two (20), and supercharger (30)) of the single-supercharger two-cylinder engine in one working cycle, and further splits the four strokes into eight processes, as described below.
In the invention, one working cycle of the single-supercharger double-cylinder engine comprises eight continuous processes; and because the supercharger (30) is 90 degrees out of phase with cylinder one (10), the supercharger (30) air intake is advanced with cylinder one (10) air intake in one working cycle, and the process one is divided into a process one and a process nine to be stated; the details are as follows.
The first process. Process one is also process nine of the previous cycle. As shown in fig. 3.
The supercharger (30) is in the front stroke of an air inlet stroke, an air inlet valve III (33) is opened, an air outlet valve III (35) is closed, and a piston III (32) is driven by the crankshaft (1) to move from the top dead center to the bottom dead center; air flow direction (8) air enters the supercharger (30) from an air source, such as the ambient environment.
And (5) performing a second process. As shown in fig. 4.
The cylinder I (10) is in the front stroke of an air inlet stroke, the air inlet valve I (13) is opened, the air inlet valve I (14) is closed, the air outlet valve I (15) is closed, and the piston I (12) moves from the top dead center to the bottom dead center under the drive of the crankshaft (1); air flow direction (8) air enters cylinder one (10) from an air source, such as ambient.
And the second cylinder (20) is in the front stroke of the working stroke, the inlet valve II (23) is closed, the inlet valve II (24) is closed, the exhaust valve II (25) is closed, and the high-temperature and high-pressure gas pushes the second piston (22) to move from the top dead center to the bottom dead center and outputs mechanical energy to the outside through a crank-link mechanism.
The supercharger (30) is in the rear stroke of the air inlet stroke, the air inlet valve III (33) is continuously opened, the air outlet valve III (35) is continuously closed, and the piston III (32) is continuously moved under the driving of the crankshaft (1) until the bottom dead center; air flow direction (8) air enters the supercharger (30) from an air source, such as the ambient environment.
When the second process starts, the phase of crank arm one (17) is 0 degrees, the phase of crank arm two is 360 degrees, and the phase of crank arm three (37) is 90 degrees.
And a third step. As shown in fig. 5.
The cylinder I (10) is in the rear stroke of the air inlet stroke, the air inlet valve I (13) is continuously opened, the air inlet valve I (14) is continuously closed, the air outlet valve I (15) is continuously closed, and the piston I (12) is continuously moved under the driving of the crankshaft (1) until the bottom dead center; air flow direction (8) air enters cylinder one (10) from an air source, such as ambient.
And the cylinder II (20) is in the rear stroke of the working stroke, the intake valve II (23) is continuously closed, the intake valve II (24) is continuously closed, the exhaust valve II (25) is continuously closed, the high-temperature and high-pressure gas pushes the piston II (22) to continuously move until the bottom dead center, and mechanical energy is externally output through the crank-connecting rod mechanism.
The supercharger (30) is in the front stroke of the compression stroke, the intake valve III (33) is closed, the exhaust valve III (35) is continuously closed, the piston III (32) is driven by the crankshaft (1) to move from the bottom dead center to the top dead center, and air is compressed.
And fourthly, performing the process. As shown in fig. 6.
The cylinder I (10) is in the front stroke of a compression stroke, the intake valve I (13) is closed, the intake valve I (14) is opened, the exhaust valve I (15) is continuously closed, and the piston I (12) moves from a bottom dead center to a top dead center under the drive of the crankshaft (1); and the air flow direction (8) is that air enters the first cylinder (10) from the first communication channel (2).
The second cylinder (20) is in the front stroke of the exhaust stroke, the second intake valve (23) is continuously closed, the second intake valve (24) is continuously closed, the second exhaust valve (25) is opened, and the second piston (22) moves from the bottom dead center to the top dead center under the drive of the crankshaft (1); and in the airflow direction (8), the combusted waste gas is discharged out of the second cylinder (20) under the action of the difference between the internal pressure and the external pressure of the second cylinder (20).
The supercharger (30) is in the rear stroke of the compression stroke, the intake valve III (33) is continuously closed, the exhaust valve III (35) is opened, and the piston III (32) is driven by the crankshaft (1) to continuously move until reaching the top dead center; and the airflow direction (8) is that compressed air enters the first communication channel (2) from the supercharger (30).
Because the supercharger (30) has no combustion chamber, when the piston three (32) reaches the top dead center, the air in the supercharger (30) is extruded, and the air sucked in before the cylinder one (10) and the supercharger (30) flows into the combustion chamber of the cylinder one (10). In this way, cylinder one (10) draws in more air than without the supercharger (30).
And a fifth step. As shown in fig. 7.
And when the cylinder I (10) is in the rear stroke of the compression stroke, the inlet valve I (13) is continuously closed, the inlet valve I (14) is closed, the exhaust valve I (15) is continuously closed, and the piston I (12) is driven by the crankshaft (1) to continuously move until the top dead center.
The cylinder II (20) is in the rear stroke of the exhaust stroke, the intake valve II (23) is continuously closed, the intake valve II (24) is continuously closed, the exhaust valve II (25) is opened, and the piston II (22) is driven by the crankshaft (1) to continuously move until reaching the top dead center; and in the airflow direction (8), the combusted waste gas is discharged out of the second cylinder (20) under the action of the difference between the internal pressure and the external pressure of the second cylinder (20).
The supercharger (30) is in the front stroke of an air inlet stroke, an air inlet valve III (33) is opened, an air outlet valve III (35) is closed, and a piston III (32) is driven by the crankshaft (1) to move from the top dead center to the bottom dead center; air flow direction (8) air enters the supercharger (30) from an air source, such as the ambient environment.
And a sixth step. As shown in fig. 8.
The first cylinder (10) is in the front stroke of the working stroke, the first inlet valve (13) is continuously closed, the first inlet valve (14) is continuously closed, the first exhaust valve (15) is continuously closed, and high-temperature and high-pressure gas pushes the first piston (12) to move from the top dead center to the bottom dead center and outputs mechanical energy outwards through the crank-link mechanism.
The second cylinder (20) is in the front stroke of an air inlet stroke, an air inlet valve II (23) is opened, an air inlet valve II (24) is continuously closed, an air outlet valve II (25) is closed, and a piston II (22) is driven by the crankshaft (1) to move from the top dead center to the bottom dead center; air flow direction (8) air enters cylinder two (20) from an air source, such as ambient.
The supercharger (30) is in the rear stroke of the air inlet stroke, the air inlet valve III (33) is continuously opened, the air outlet valve III (35) is continuously closed, and the piston III (32) is continuously moved under the driving of the crankshaft (1) until the bottom dead center; air flow direction (8) air enters the supercharger (30) from an air source, such as the ambient environment.
And a seventh step. As shown in fig. 9.
The cylinder I (10) is in the rear stroke of the working stroke, the air inlet valve I (13) is continuously closed, the air inlet valve I (14) is continuously closed, the air outlet valve I (15) is continuously closed, the high-temperature and high-pressure gas pushes the piston I (12) to continuously move until the bottom dead center, and mechanical energy is output outwards through the crank connecting rod mechanism.
The cylinder II (20) is in the rear stroke of the air inlet stroke, the air inlet valve II (23) is continuously opened, the air inlet valve II (24) is continuously closed, the exhaust valve II (25) is continuously closed, and the piston II (22) is continuously moved under the driving of the crankshaft (1) until the bottom dead center; air flow direction (8) air enters cylinder two (20) from an air source, such as ambient.
The supercharger (30) is in the front stroke of the compression stroke, the intake valve III (33) is closed, the exhaust valve III (35) is continuously closed, the piston III (32) is driven by the crankshaft (1) to move from the bottom dead center to the top dead center, and air is compressed.
And (9) carrying out the eighth process. As shown in fig. 10.
The cylinder I (10) is in the front stroke of an exhaust stroke, the intake valve I (13) is continuously closed, the intake valve I (14) is continuously closed, the exhaust valve I (15) is opened, and the piston I (12) moves from a bottom dead center to a top dead center under the drive of the crankshaft (1); and in the airflow direction (8), the combusted waste gas is discharged out of the cylinder I (10) under the action of the difference between the internal pressure and the external pressure of the cylinder I (10).
The second cylinder (20) is in the front stroke of the compression stroke, the inlet valve II (23) is closed, the inlet valve II (24) is opened, the exhaust valve II (25) is continuously closed, and the second piston (22) moves from the bottom dead center to the top dead center under the drive of the crankshaft (1); and the air flow direction (8) is that air enters the cylinder II (20) from the communication channel I (2).
The supercharger (30) is in the rear stroke of the compression stroke, the intake valve III (33) is continuously closed, the exhaust valve III (35) is opened, and the piston III (32) is driven by the crankshaft (1) to continuously move until reaching the top dead center; and the airflow direction (8) is that compressed air enters the first communication channel (2) from the supercharger (30).
And a ninth process. Process nine is also process one of the next cycle. As shown in fig. 3.
The cylinder I (10) is in the rear stroke of the exhaust stroke, the intake valve I (13) is continuously closed, the intake valve I (14) is continuously closed, the exhaust valve I (15) is continuously opened, and the piston I (12) is driven by the crankshaft (1) to continuously move until reaching the top dead center; and in the airflow direction (8), the combusted waste gas is discharged out of the cylinder I (10) under the action of the difference between the internal pressure and the external pressure of the cylinder I (10).
And the second cylinder (20) is in the rear stroke of the compression stroke, the intake valve II (23) is continuously closed, the intake valve II (24) is closed, the exhaust valve II (25) is continuously closed, and the second piston (22) is driven by the crankshaft (1) to continuously move until the top dead center.
Example two. As shown in fig. 1 and fig. 11.
A two-stage supercharged engine comprises a first-stage supercharging system, a second-stage supercharging system and an engine body; the first-stage supercharging system comprises a turbine (5), a gas compressor (6), a communication channel II (3), a communication channel III (4) and a flow stabilizer (7), and the waste gas turbine (5) is used for supercharging; the second-stage supercharging system comprises a supercharger (30), a first communication channel (2) and a second supercharging device, wherein the supercharger (30) is used for mechanical movement supercharging; the engine body comprises a first cylinder (10), a second cylinder (20) and a crankshaft (1); the flow stabilizer (7) is a tank body with an opening at one end, is connected with the communicating channel II (3) and is used for storing pressurized air, storing energy and stabilizing air pressure.
The compressor (6) of the first-stage supercharging system is connected with a first inlet valve (13), a second inlet valve (23) and a third inlet valve (33) of the second-stage supercharging system through a communication channel II (3); the first communication channel (2) of the second-stage supercharging system comprises three interfaces, the first interface (2.1) is connected with a first inlet valve B (14) of the first cylinder (10), the second interface (2.2) is connected with a second inlet valve B (24) of the second cylinder (20), the third interface (2.3) is connected with a third exhaust valve (35) of the supercharger (30), and the three interfaces are communicated with each other; and a first exhaust valve (15) and a second exhaust valve (25) of the engine body are connected with a turbine (5) of the first-stage supercharging system through a communication channel III (4).
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment and the components, but on the contrary, is intended to cover various modifications, combinations of features, equivalent arrangements, and equivalent components included within the spirit and scope of the appended claims. Further, the dimensions of features of each component appearing in the figures are not limiting, where the dimensions of each component may differ from the dimensions of the components depicted in the figures. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

Claims (3)

1. An engine, comprising: two identical cylinders, namely a cylinder one (10) and a cylinder two (20), a supercharger (30), a communication channel one (2);
the cylinder I (10) comprises an inlet valve I (13), an inlet valve I (14) and an exhaust valve I (15); air can enter the first combustion chamber (11) from an air source through the first inlet valve (13); the first inlet valve B (14) is connected with the first communication channel (2), and air can enter the first combustion chamber (11) from the first communication channel (2) through the first inlet valve B (14);
the second cylinder (20) comprises a second intake valve (23), a second intake valve (24) and a second exhaust valve (25); air may enter combustion chamber two (21) from an air source through intake valve two (23); the inlet valve diethyl (24) is connected with the first communication channel (2), and air can enter the second combustion chamber (21) from the first communication channel (2) through the inlet valve diethyl (24);
the supercharger (30) comprises an inlet valve III (33) and an outlet valve III (35); air may flow from the air source through the intake valve three (33) into the supercharger (30); the exhaust valve III (35) is connected with the communication channel I (2), and air can flow to the communication channel I (2) from the supercharger (30) through the exhaust valve III (35);
the cylinder I (10), the cylinder II (20) and the supercharger (30) share the same crankshaft (1);
the first cylinder (10) and the second cylinder (20) have equal volumes;
the method is characterized in that:
the first communication channel (2) comprises three interfaces, the first interface (2.1) is connected with a first inlet valve B (14) of the first cylinder (10), the second interface (2.2) is connected with a second inlet valve B (24) of the second cylinder (20), the third interface (2.3) is connected with a third exhaust valve (35) of the supercharger (30), and the three interfaces are communicated with each other;
the phase of the crank arm one (17) of the cylinder one (10) is 360 degrees out of phase with the phase of the crank arm two of the cylinder two (20); the phase of the crank arm one (17) of the cylinder one (10) is different from the phase of the crank arm three (37) of the supercharger (30) by 90 degrees;
one working cycle of the engine comprises nine continuous processes; the concrete steps are as follows;
a first process;
the supercharger (30) is in the front stroke of an air inlet stroke, an air inlet valve III (33) is opened, an air outlet valve III (35) is closed, and a piston III (32) is driven by the crankshaft (1) to move from the top dead center to the bottom dead center;
a second step;
the cylinder I (10) is in the front stroke of an air inlet stroke, the air inlet valve I (13) is opened, the air inlet valve I (14) is closed, the air outlet valve I (15) is closed, and the piston I (12) moves from the top dead center to the bottom dead center under the drive of the crankshaft (1);
the second cylinder (20) is in the front stroke of the working stroke, the second inlet valve (23) is closed, the second inlet valve (24) is closed, the second exhaust valve (25) is closed, and high-temperature and high-pressure gas pushes the second piston (22) to move from the top dead center to the bottom dead center and outputs mechanical energy outwards through a crank-link mechanism;
the supercharger (30) is in the rear stroke of the air inlet stroke, the air inlet valve III (33) is continuously opened, the air outlet valve III (35) is continuously closed, and the piston III (32) is continuously moved under the driving of the crankshaft (1) until the bottom dead center;
a third step;
the cylinder I (10) is in the rear stroke of the air inlet stroke, the air inlet valve I (13) is continuously opened, the air inlet valve I (14) is continuously closed, the air outlet valve I (15) is continuously closed, and the piston I (12) is continuously moved under the driving of the crankshaft (1) until the bottom dead center; the cylinder II (20) is in the rear stroke of the working stroke, the intake valve II (23) is continuously closed, the intake valve II (24) is continuously closed, the exhaust valve II (25) is continuously closed, the high-temperature and high-pressure gas pushes the piston II (22) to continuously move until the bottom dead center, and mechanical energy is externally output through the crank-connecting rod mechanism;
the supercharger (30) is in the front stroke of the compression stroke, the intake valve III (33) is closed, the exhaust valve III (35) is continuously closed, the piston III (32) is driven by the crankshaft (1) to move from the bottom dead center to the top dead center, and air is compressed;
a fourth step;
the cylinder I (10) is in the front stroke of a compression stroke, the intake valve I (13) is closed, the intake valve I (14) is opened, the exhaust valve I (15) is continuously closed, and the piston I (12) moves from a bottom dead center to a top dead center under the drive of the crankshaft (1);
the second cylinder (20) is in the front stroke of the exhaust stroke, the second intake valve (23) is continuously closed, the second intake valve (24) is continuously closed, the second exhaust valve (25) is opened, and the second piston (22) moves from the bottom dead center to the top dead center under the drive of the crankshaft (1);
the supercharger (30) is in the rear stroke of the compression stroke, the intake valve III (33) is continuously closed, the exhaust valve III (35) is opened, and the piston III (32) is driven by the crankshaft (1) to continuously move until reaching the top dead center;
a fifth step;
the cylinder I (10) is in the rear stroke of the compression stroke, the intake valve I (13) is continuously closed, the intake valve I (14) is closed, the exhaust valve I (15) is continuously closed, and the piston I (12) is driven by the crankshaft (1) to continuously move until reaching the top dead center;
the cylinder II (20) is in the rear stroke of the exhaust stroke, the intake valve II (23) is continuously closed, the intake valve II (24) is continuously closed, the exhaust valve II (25) is opened, and the piston II (22) is driven by the crankshaft (1) to continuously move until reaching the top dead center;
the supercharger (30) is in the front stroke of an air inlet stroke, an air inlet valve III (33) is opened, an air outlet valve III (35) is closed, and a piston III (32) is driven by the crankshaft (1) to move from the top dead center to the bottom dead center;
a sixth process;
the cylinder I (10) is in the front stroke of the working stroke, the inlet valve I (13) is continuously closed, the inlet valve I B (14) is continuously closed, the exhaust valve I (15) is continuously closed, and high-temperature and high-pressure gas pushes the piston I (12) to move from the top dead center to the bottom dead center and outputs mechanical energy outwards through the crank connecting rod mechanism;
the second cylinder (20) is in the front stroke of an air inlet stroke, an air inlet valve II (23) is opened, an air inlet valve II (24) is continuously closed, an air outlet valve II (25) is closed, and a piston II (22) is driven by the crankshaft (1) to move from the top dead center to the bottom dead center;
the supercharger (30) is in the rear stroke of the air inlet stroke, the air inlet valve III (33) is continuously opened, the air outlet valve III (35) is continuously closed, and the piston III (32) is continuously moved under the driving of the crankshaft (1) until the bottom dead center;
a seventh process;
the cylinder I (10) is in the rear stroke of the working stroke, the air inlet valve I (13) is continuously closed, the air inlet valve I (14) is continuously closed, the air outlet valve I (15) is continuously closed, the high-temperature and high-pressure gas pushes the piston I (12) to continuously move until the bottom dead center, and mechanical energy is externally output through the crank connecting rod mechanism;
the cylinder II (20) is in the rear stroke of the air inlet stroke, the air inlet valve II (23) is continuously opened, the air inlet valve II (24) is continuously closed, the exhaust valve II (25) is continuously closed, and the piston II (22) is continuously moved under the driving of the crankshaft (1) until the bottom dead center;
the supercharger (30) is in the front stroke of the compression stroke, the intake valve III (33) is closed, the exhaust valve III (35) is continuously closed, the piston III (32) is driven by the crankshaft (1) to move from the bottom dead center to the top dead center, and air is compressed;
a eighth process;
the cylinder I (10) is in the front stroke of an exhaust stroke, the intake valve I (13) is continuously closed, the intake valve I (14) is continuously closed, the exhaust valve I (15) is opened, and the piston I (12) moves from a bottom dead center to a top dead center under the drive of the crankshaft (1);
the second cylinder (20) is in the front stroke of the compression stroke, the inlet valve II (23) is closed, the inlet valve II (24) is opened, the exhaust valve II (25) is continuously closed, and the second piston (22) moves from the bottom dead center to the top dead center under the drive of the crankshaft (1);
the supercharger (30) is in the rear stroke of the compression stroke, the intake valve III (33) is continuously closed, the exhaust valve III (35) is opened, and the piston III (32) is driven by the crankshaft (1) to continuously move until reaching the top dead center;
a ninth process;
the cylinder I (10) is in the rear stroke of the exhaust stroke, the intake valve I (13) is continuously closed, the intake valve I (14) is continuously closed, the exhaust valve I (15) is continuously opened, and the piston I (12) is driven by the crankshaft (1) to continuously move until reaching the top dead center;
and the second cylinder (20) is in the rear stroke of the compression stroke, the intake valve II (23) is continuously closed, the intake valve II (24) is closed, the exhaust valve II (25) is continuously closed, and the second piston (22) is driven by the crankshaft (1) to continuously move until the top dead center.
2. An engine according to claim 1, wherein: the volume of the supercharger (30) is equal to twice the volume of the cylinder one (10).
3. An engine according to claim 1, wherein: the system comprises a first-stage supercharging system, a second-stage supercharging system and an engine body;
the first-stage supercharging system comprises a waste gas turbine (5), a gas compressor (6), a communication channel II (3), a communication channel III (4) and a flow stabilizer (7), and the waste gas turbine (5) is used for supercharging; the second-stage supercharging system comprises a supercharger (30), a first communication channel (2) and a second supercharging device, wherein the supercharger (30) is used for mechanical movement supercharging; the engine body comprises a first cylinder (10), a second cylinder (20) and a crankshaft (1); the flow stabilizer (7) is a tank body with an opening at one end, is connected with the communicating channel II (3) and is used for storing pressurized air, storing energy and stabilizing air pressure;
the compressor (6) of the first-stage supercharging system is connected with a first inlet valve (13), a second inlet valve (23) and a third inlet valve (33) of the second-stage supercharging system through a communication channel II (3); the first communication channel (2) of the second-stage supercharging system comprises three interfaces, the first interface (2.1) is connected with a first inlet valve B (14) of the first cylinder (10), the second interface (2.2) is connected with a second inlet valve B (24) of the second cylinder (20), the third interface (2.3) is connected with a third exhaust valve (35) of the supercharger (30), and the three interfaces are communicated with each other; and a first exhaust valve (15) and a second exhaust valve (25) of the engine body are connected with an exhaust gas turbine (5) of the first-stage supercharging system through a communication channel III (4).
CN201710677778.XA 2017-08-09 2017-08-09 Single-supercharger double-cylinder engine Active CN107218119B (en)

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CN101832176A (en) * 2009-03-09 2010-09-15 大连理工大学 Engine
CN207111231U (en) * 2017-08-09 2018-03-16 徐芝香 A kind of single pressurizator bi-block engine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101832176A (en) * 2009-03-09 2010-09-15 大连理工大学 Engine
CN207111231U (en) * 2017-08-09 2018-03-16 徐芝香 A kind of single pressurizator bi-block engine

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