CN102877930A - Direct-current ventilation four-stroke engine - Google Patents
Direct-current ventilation four-stroke engine Download PDFInfo
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- CN102877930A CN102877930A CN2012103225154A CN201210322515A CN102877930A CN 102877930 A CN102877930 A CN 102877930A CN 2012103225154 A CN2012103225154 A CN 2012103225154A CN 201210322515 A CN201210322515 A CN 201210322515A CN 102877930 A CN102877930 A CN 102877930A
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- 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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Abstract
The invention discloses a direct-current ventilation four-stroke engine. The engine comprises an air cylinder and a piston, wherein the piston is arranged in the air cylinder and is matched with the air cylinder; the side wall of the air cylinder is provided with an air inlet; the air cylinder is provided with an exhaust valve; and the exhaust valve is controlled by an exhaust control mechanism which enables the engine to work in a four-stroke operating mode including such four strokes as vacuum inflation stroke, compression stroke, expansion work stroke and exhaust stroke. According to the direct-current ventilation four-stroke engine disclosed by the invention, the air suction and exhaust circulation resistances are low, the thermal load is low, and the efficiency is high.
Description
Technical field
The present invention relates to field of internal combustion engine, especially a kind of four stroke engine.
Background technique
Reciprocating engine is divided into four stroke engine and two stroke engine, and four stroke engine will be arranged intake valve and exhaust valve two quasi-valves in cylinder head in general, and this has just inevitably caused, and the gas flow flux is little, flow resistance is large; Two stroke engine all is by the form of scavenging waste gas to be discharged from cylinder, and fresh air is imported cylinder, and often there is the problem that scavenging is not thorough or scavenging is excessive and heat load is high in this mode.Therefore, a kind of air inlet flux of needs invention is large, heat load is low, the thoroughly new work engine of taking a breath.
Summary of the invention
In order to address the above problem, the technological scheme that the present invention proposes is as follows:
A kind of direct current ventilation four stroke engine, comprise cylinder and piston, described piston is arranged in the described cylinder, described piston matches with described cylinder, sidewall at described cylinder is established suction port, establish exhaust valve at described cylinder, described exhaust valve is made---the exhaust control mechanism control of compression stroke---expansion expansion stroke---exhaust stroke four-stroke mode of operation work by the vacuum gas filling stroke of described direct current ventilation four stroke engine.
Described exhaust valve is arranged on the cylinder head of described cylinder.
Described exhaust valve is arranged on the sidewall of the corresponding described cylinder of described piston top dead center.
Two described pistons of opposite disposed in a described cylinder, the axial direction along described cylinder on the sidewall of described cylinder arranges two groups of described suction ports, and described exhaust valve is arranged on the sidewall of the described cylinder between these two groups of described suction ports.
A kind of direct current ventilation four stroke engine, comprise cylinder and piston, described piston is arranged in the described cylinder, described piston matches with described cylinder, sidewall at described cylinder is established suction port, establish exhaust valve at described piston, described exhaust valve is made---the exhaust control mechanism control of compression stroke---expansion expansion stroke---exhaust stroke four-stroke mode of operation work by the vacuum gas filling stroke of described direct current ventilation four stroke engine.
Described suction port is communicated with the gas outlet of air-admission pressure-booster.
The relief opening that matches with described exhaust valve is communicated with the gas access of Exhaust Pressure mechanism.
Described exhaust control mechanism be made as the described exhaust valve of control exhaust stroke begin front opening before the gas control mechanism processed that begins to rehearse.
Described exhaust control mechanism is made as cam control gear.
Described direct current ventilation four stroke engine also comprises crankcase and vacuum pump, and described crankcase is communicated with described vacuum pump.
Principle of the present invention is: when the exhaust stroke that is in last circulation when described piston is over, motor begins vacuum gas filling stroke (suction stroke that namely is equivalent to the conventional, four-stroke motor), at this moment described exhaust valve is in closed condition, described piston begins descending, form vacuum in the described cylinder, descending along with described piston, degree of vacuum improves constantly, when described piston is inswept when being arranged on described suction port on the sidewall of described cylinder, fresh air pours in the described cylinder by described suction port, described piston is crossed lower dead center and is advanced into compression stroke on beginning, along with described piston stroking upward, the pressure of gas in the jar improves constantly, in the time of near described piston is in top dead center, by in described cylinder, importing fuel and/or igniting, the combustion chemistry reaction occurs in the fuel in the described cylinder and the air (or other oxygen-containing gas) in the described cylinder, described piston is crossed top dead center and is entered the expansion expansion stroke, when described expansion expansion stroke draws to an end, opening state opened and keeps by described exhaust valve under the control of described exhaust control mechanism, described piston is crossed lower dead center and is entered exhaust stroke, and described exhaust valve cuts out and keep closed condition under the control of described exhaust control mechanism when described exhaust stroke draws to an end.So circulation goes round and begins again.
Among the present invention, described cylinder and described piston relative movement, for example: described cylinder is static, described piston movement; Described piston is static, described cylinder moving; Described cylinder and described piston all move.
Among the present invention, should adjust according to the suction pressure of described direct current ventilation four stroke engine the opening time of described exhaust valve, with prevent in expansion expansion stroke and exhaust stroke transfer process exhaust gas inside cylinder through described suction port flow backwards and air inlet this moment through the excessive cylinder that enters of described suction port.
Among the present invention, described air-admission pressure-booster can increase the mechanism of suction pressure for all, such as impeller gas compressor or cylinder piston mechanism etc.
Among the present invention, described Exhaust Pressure mechanism can be by utilizing exhaust energy and then the outside mechanism of outputting power, such as turbo-power mechanism or cylinder piston acting mechanism etc. for all.
Among the present invention, the exhaust advance angle of the larger described exhaust valve of gas pressure before the described suction port of described direct current ventilation four stroke engine can be less, otherwise the exhaust advance angle of the less described exhaust valve of gas pressure before the described suction port can be larger.
Among the present invention, should according to the known technology in heat energy and power and gas compression field, necessary parts, unit or system be set in the place of necessity.For example, fuel oil supply system, lubrication system are set, and when being necessary set-point ignition system, cooling system etc.
Beneficial effect of the present invention is as follows:
Air inlet, the exhaust circulation resistance of direct current ventilation four stroke engine disclosed in this invention are little, and heat load is little, and efficient is high.
Description of drawings
Shown in Figure 1 is the structural representation of the embodiment of the invention 1;
Shown in Figure 2 is the structural representation of the embodiment of the invention 2;
Shown in Figure 3 is the structural representation of the embodiment of the invention 3;
Shown in Figure 4 is the structural representation of the embodiment of the invention 4;
Shown in Figure 5 is the structural representation of the embodiment of the invention 5;
Shown in Figure 6 is the structural representation of the embodiment of the invention 6;
Shown in Figure 7 is the structural representation of the embodiment of the invention 7;
Shown in Figure 8 is the structural representation of the embodiment of the invention 8,
Among the figure:
Gas control mechanism processed begins to rehearse before 1 cylinder, 2 pistons, 3 suction ports, 4 cylinder head, 5 exhaust valves, 6 exhaust control mechanisms, 7 crankcases, 8 vacuum pumps, 33 air-admission pressure-boosters, 51 relief openings, the 55 Exhaust Pressure mechanisms, 61.
Embodiment
Direct current ventilation four stroke engine as shown in Figure 1, comprise cylinder 1 and piston 2, described piston 2 is arranged in the described cylinder 1, described piston 2 matches with described cylinder 1, establish suction port 3 at the sidewall of described cylinder 1, described suction port 3 is made as several, establish exhaust valve 5 at described cylinder 1, described exhaust valve 5 is made described direct current ventilation four stroke engine, and---exhaust control mechanism 6 controls of compression stroke---expansion expansion stroke---exhaust stroke four-stroke mode of operation work, described exhaust valve 5 is arranged on the cylinder head 4 of described cylinder 1 by the vacuum gas filling stroke.
The specific works process is as follows: when the exhaust stroke that is in last circulation when described piston 2 is over, motor begins vacuum gas filling stroke (suction stroke that namely is equivalent to the conventional, four-stroke motor), at this moment described exhaust valve 5 is in closed condition, described piston 2 beginnings are descending, described cylinder 1 interior formation vacuum, descending along with described piston 2, degree of vacuum in the described cylinder 1 improves constantly, when described piston 2 is inswept when being arranged on described suction port 3 on the sidewall of described cylinder 1, fresh air pours in the described cylinder 1 by described suction port 3, described piston 2 is crossed lower dead center and is advanced into compression stroke on beginning, along with described piston 2 is up, the pressure of gas in the jar improves constantly, in the time of near described piston 2 is in top dead center, by to described cylinder 1 interior importing fuel and/or igniting, the combustion chemistry reaction occurs in fuel and the air (or other oxygen-containing gas) in the described cylinder 1 in the described cylinder 1, described piston 2 is crossed top dead center and is entered the expansion expansion stroke, when described expansion expansion stroke draws to an end, opening state opened and keeps by described exhaust valve 5 under the control of described exhaust control mechanism 6, described piston 2 is crossed lower dead center and is entered exhaust stroke, and described exhaust valve 5 cuts out and keep closed condition under the control of described exhaust control mechanism 6 when described exhaust stroke draws to an end.So circulation goes round and begins again.
As shown in Figure 2 direct current ventilation four stroke engine, itself and embodiment's 1 difference is: described exhaust valve 5 is arranged on the sidewall of the corresponding described cylinder 1 of described piston 2 top dead centers.
Direct current ventilation four stroke engine as shown in Figure 3, itself and embodiment's 1 difference is: at two described pistons 2 of described cylinder 1 an interior opposite disposed, axial direction along described cylinder 1 on the sidewall of described cylinder 1 arranges two groups of described suction ports 3, and described exhaust valve 5 is arranged on the sidewall of these the two groups described cylinders 1 between the described suction port 3.
Direct current ventilation four stroke engine as shown in Figure 4, comprise cylinder 1 and piston 2, described piston 2 is arranged in the described cylinder 1, described piston 2 matches with described cylinder 1, establish suction port 3 at the sidewall of described cylinder 1, establish exhaust valve 5 at described piston 2, described exhaust valve 5 is made---exhaust control mechanism 6 controls of compression stroke---expansion expansion stroke---exhaust stroke four-stroke mode of operation work by the vacuum gas filling stroke of described direct current ventilation four stroke engine.
The specific works process is as follows: when the exhaust stroke that is in last circulation when described piston 2 is over, motor begins vacuum gas filling stroke (suction stroke that namely is equivalent to the conventional, four-stroke motor), at this moment described exhaust valve 5 is in closed condition, described piston 2 beginnings are descending, described cylinder 1 interior formation vacuum, descending along with described piston 2, degree of vacuum in the described cylinder 1 improves constantly, when described piston 2 is inswept when being arranged on described suction port 3 on the sidewall of described cylinder 1, fresh air pours in the described cylinder 1 by described suction port 3, described piston 2 is crossed lower dead center and is advanced into compression stroke on beginning, along with described piston 2 is up, the pressure of gas in the jar improves constantly, in the time of near described piston 2 is in top dead center, by to described cylinder 1 interior importing fuel and/or igniting, the combustion chemistry reaction occurs in fuel and the air (or other oxygen-containing gas) in the described cylinder 1 in the described cylinder 1, described piston 2 is crossed top dead center and is entered the expansion expansion stroke, when described expansion expansion stroke draws to an end, opening state opened and keeps by described exhaust valve 5 under the control of described exhaust control mechanism 6, described piston 2 is crossed lower dead center and is entered exhaust stroke, and described exhaust valve 5 cuts out and keep closed condition under the control of described exhaust control mechanism 6 when described exhaust stroke draws to an end.So circulation goes round and begins again.
Direct current ventilation four stroke engine as shown in Figure 5, its difference with embodiment 1 is: described suction port 3 is communicated with the gas outlet of air-admission pressure-booster 33, gas after described pressurized machine 33 superchargings is as the air inlet of described direct current ventilation four stroke engine, improve suction pressure, and then can improve the efficient of motor.
Direct current ventilation four stroke engine as shown in Figure 6, its difference with embodiment 4 is: the relief opening 51 that matches with described exhaust valve 5 is communicated with the gas access of Exhaust Pressure mechanism 55, in the present embodiment, the energy that described Exhaust Pressure mechanism 55 purposes are set are exhaust utilizes again, and then improves the efficient of motor.
As shown in Figure 7 direct current ventilation four stroke engine, its difference with embodiment 1 is: described exhaust control mechanism be made as control described exhaust valve 5 exhaust stroke begin front opening before the gas control mechanism 61 processed that begins to rehearse.
During implementation, described exhaust control mechanism 6 also can be made as cam control gear.
Direct current ventilation four stroke engine as shown in Figure 8, itself and embodiment's 1 difference is: described direct current ventilation four stroke engine also comprises crankcase 7 and vacuum pump 8, described crankcase 7 is communicated with described vacuum pump 8, the purpose that described vacuum pump 8 is set is in order to discharge the waste gas in the described crankcase 7 that bleeds, to make the steadily work of safety of described direct current ventilation four stroke engine.
Obviously, the invention is not restricted to above embodiment, according to known technology and the technological scheme disclosed in this invention of related domain, can derive or association goes out many flexible programs, all these flexible programs also should be thought protection scope of the present invention.
Claims (10)
1. direct current ventilation four stroke engine, comprise cylinder (1) and piston (2), it is characterized in that: described piston (2) is arranged in the described cylinder (1), described piston (2) matches with described cylinder (1), establish suction port (3) at the sidewall of described cylinder (1), establish exhaust valve (5) at described cylinder (1), described exhaust valve (5) is made---exhaust control mechanism (6) control of compression stroke---expansion expansion stroke---exhaust stroke four-stroke mode of operation work by the vacuum gas filling stroke of described direct current ventilation four stroke engine.
2. direct current ventilation four stroke engine as claimed in claim 1, it is characterized in that: described exhaust valve (5) is arranged on the cylinder head (4) of described cylinder (1).
3. direct current ventilation four stroke engine as claimed in claim 1, it is characterized in that: described exhaust valve (5) is arranged on the sidewall of described piston (2) the corresponding described cylinder of top dead center (1).
4. direct current ventilation four stroke engine as claimed in claim 1, it is characterized in that: two described pistons of opposite disposed (2) in a described cylinder (1), axial direction along described cylinder (1) on the sidewall of described cylinder (1) arranges two groups of described suction ports (3), and described exhaust valve (5) is arranged on the sidewall of the described cylinder (1) between these two groups of described suction ports (3).
5. direct current ventilation four stroke engine, comprise cylinder (1) and piston (2), it is characterized in that: described piston (2) is arranged in the described cylinder (1), described piston (2) matches with described cylinder (1), establish suction port (3) at the sidewall of described cylinder (1), establish exhaust valve (5) at described piston (2), described exhaust valve (5) is made---exhaust control mechanism (6) control of compression stroke---expansion expansion stroke---exhaust stroke four-stroke mode of operation work by the vacuum gas filling stroke of described direct current ventilation four stroke engine.
6. such as direct current ventilation four stroke engine as described in claim 1 or 5, it is characterized in that: described suction port (3) is communicated with the gas outlet of air-admission pressure-booster (33).
7. such as direct current ventilation four stroke engine as described in claim 1 or 5, it is characterized in that: the relief opening (51) that matches with described exhaust valve (5) is communicated with the gas access of Exhaust Pressure mechanism (55).
8. such as direct current ventilation four stroke engine as described in claim 1 or 5, it is characterized in that: described exhaust control mechanism (6) be made as the described exhaust valve of control (5) exhaust stroke begin front opening before the gas control mechanism processed (61) that begins to rehearse.
9. such as direct current ventilation four stroke engine as described in claim 1 or 5, it is characterized in that: described exhaust control mechanism (6) is made as cam control gear.
10. such as direct current ventilation four stroke engine as described in claim 1 or 5, it is characterized in that: described direct current ventilation four stroke engine also comprises crankcase (7) and vacuum pump (8), and described crankcase (7) is communicated with described vacuum pump (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103225154A CN102877930A (en) | 2011-09-05 | 2012-09-03 | Direct-current ventilation four-stroke engine |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110260761 | 2011-09-05 | ||
| CN201110260761.7 | 2011-09-05 | ||
| CN201110266279 | 2011-09-08 | ||
| CN201110266279.4 | 2011-09-08 | ||
| CN2012103225154A CN102877930A (en) | 2011-09-05 | 2012-09-03 | Direct-current ventilation four-stroke engine |
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| Publication Number | Publication Date |
|---|---|
| CN102877930A true CN102877930A (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103225154A Pending CN102877930A (en) | 2011-09-05 | 2012-09-03 | Direct-current ventilation four-stroke engine |
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| CN (1) | CN102877930A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979853A (en) * | 2018-06-20 | 2018-12-11 | 安徽工程大学 | Pancake engine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985358A (en) * | 1982-11-09 | 1984-05-17 | Mitsubishi Heavy Ind Ltd | Production of cylinder |
| US5080081A (en) * | 1989-07-17 | 1992-01-14 | Isuzu Motors Limited | Four-cycle heat insulating engine |
| CN1651732A (en) * | 2005-03-28 | 2005-08-10 | 吴春杰 | New type engine |
| EP2039896A2 (en) * | 2007-09-21 | 2009-03-25 | MANN+HUMMEL GmbH | Device for separating oil out of an air flow |
-
2012
- 2012-09-03 CN CN2012103225154A patent/CN102877930A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985358A (en) * | 1982-11-09 | 1984-05-17 | Mitsubishi Heavy Ind Ltd | Production of cylinder |
| US5080081A (en) * | 1989-07-17 | 1992-01-14 | Isuzu Motors Limited | Four-cycle heat insulating engine |
| CN1651732A (en) * | 2005-03-28 | 2005-08-10 | 吴春杰 | New type engine |
| EP2039896A2 (en) * | 2007-09-21 | 2009-03-25 | MANN+HUMMEL GmbH | Device for separating oil out of an air flow |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979853A (en) * | 2018-06-20 | 2018-12-11 | 安徽工程大学 | Pancake engine |
| CN108979853B (en) * | 2018-06-20 | 2020-07-14 | 安徽工程大学 | Horizontally opposed engine |
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Application publication date: 20130116 |