CN110594011A - Single screw internal combustion engine - Google Patents
Single screw internal combustion engine Download PDFInfo
- Publication number
- CN110594011A CN110594011A CN201810641411.7A CN201810641411A CN110594011A CN 110594011 A CN110594011 A CN 110594011A CN 201810641411 A CN201810641411 A CN 201810641411A CN 110594011 A CN110594011 A CN 110594011A
- Authority
- CN
- China
- Prior art keywords
- expander
- compressor
- fuel
- screw
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/02—Methods of operating
-
- 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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/04—Charge admission or combustion-gas discharge
- F02B53/08—Charging, e.g. by means of rotary-piston pump
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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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/10—Fuel supply; Introducing fuel to combustion space
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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
- F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines
- F02B53/14—Adaptations of engines for driving, or engine combinations with, other devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Supercharger (AREA)
Abstract
The invention discloses a single-screw internal combustion engine, which uses a single-screw compressor as an air compressor and uses another single-screw machine as an expander; the compressor shell is provided with an oil spray hole, and the expander shell is provided with a spark plug; other than that, the compressor and the expander have the same structure. In the compressor, fuel is injected when air is compressed, the fuel is gasified and absorbs heat, the temperature of the compressed air is reduced, the compressed air is attached to a screw rod and star wheel teeth to play a role in sealing, the temperature of the fuel is also improved, a high-pressure and high-temperature fuel-air mixture enters an exhaust cavity of the compressor, then the fuel-air mixture passes through a connecting pipe and a high-pressure cavity of the expander and enters a sealed cavity formed by a spiral groove, a shell and the star wheel teeth, and after the sealed cavity is separated from an inlet of the expander, the fuel-air mixture is ignited by a spark plug and becomes gas with higher temperature and higher pressure; the gas with higher temperature and higher pressure expands in the closed cavity to push the screw to rotate and output power.
Description
Technical Field
The invention relates to an internal combustion engine, in particular to an internal combustion engine consisting of 1 single-screw air compressor and 1 single-screw expander.
Background
The internal combustion engine commonly used at present is a reciprocating piston type internal combustion engine, and has the disadvantages of complex structure, more parts and poor reliability; high-temperature residual waste gas exists in the air cylinder in the working process, so that the volumetric efficiency of the machine is reduced; the kinetic energy of the piston, the connecting rod and other parts cannot be utilized; inertia isodynamic system can not be completely balanced, and the machine has large vibration; low rotation speed, low exhaust frequency and high noise.
Wankel engines do not have these disadvantages of reciprocating piston engines, but have poor low speed operation and require seal replacement.
Disclosure of Invention
The invention provides a single-screw internal combustion engine which has no abrasion and wearing parts and can run efficiently for a long time.
The technical scheme adopted by the invention is as follows: a single-screw internal combustion engine, it uses 2 special single-screw machines as air compressor and expander; the difference between the air compressor and the expander is that: the shell of the air compressor is provided with an oil spray hole, and the shell of the expander is provided with a spark plug; the air compressor and the expander are provided with a shell, a screw rod and a star wheel which have the same structure.
The special single-screw machine used for the internal combustion engine has the advantages of good stress balance, large capacity, compact structure, small volume, no residual gap volume, high volume efficiency, low noise, small vibration and no abrasion.
Scheme 1: the air compressor and the expander are mounted on the same shaft in opposite directions.
Scheme 2: the air compressor and the expander are installed in the same direction, and the back is connected by 1 pair of meshed gears.
Description of the drawings:
fig. 1-4 are schematic structural diagrams of a first embodiment of the present invention. Fig. 1 is a front view, fig. 2 is an upper perspective view, and fig. 3 and 4 are partial sectional views of fig. 2.
Fig. 5 is a schematic structural diagram of a second embodiment of the present invention.
The specific implementation mode is as follows:
the invention is described in further detail below with reference to figures 1-4.
Example one
As shown in fig. 1, in the present embodiment, when the shaft rotates in the direction shown (counterclockwise with respect to the protruding end of the shaft), air enters the groove formed by the star wheel 3, the screw 5 and the housing 4 through the air inlet hole 8 of the compressor 2; the whole spiral groove is filled with air and closed, the volume of the closed spiral groove is reduced, fuel is sprayed from a fuel spray hole 11 while the air is compressed, the generated fuel-air mixture is discharged from a vent hole 12, enters the small-volume spiral groove of the expander 2 through an outlet 9 of a high-pressure cavity, a connecting pipe 10 and an inlet 14 of the expander 1, is ignited by a spark plug 13 and is changed into high-temperature high-pressure gas, the shaft 6 is pushed to rotate, power is output, and the waste gas after acting is discharged from an outlet 7 of the expander to finish 1 cycle.
Example two
In the present embodiment, as shown in fig. 5, when the shaft rotates in the direction shown (counterclockwise facing the protruding end of the shaft), air enters the screw groove formed by the star wheel 3 and the screw 5 and the housing 4 from the air inlet 8 of the compressor 2, continues to rotate, the whole screw groove is filled with air and closed, the volume of the closed screw groove is reduced, the air is compressed and simultaneously fuel is injected from the fuel injection hole 11, the generated fuel-air mixture is discharged from the exhaust hole 12, passes through the outlet 9 of the high pressure chamber, the connecting pipe 10 and the inlet 14 of the expander 1, enters the screw groove with the small volume of the expander 2, which is closed, is ignited by the spark plug 13, becomes high temperature and high pressure gas, and pushes the shaft 6 to rotate; the gear 15 installed on the shaft 6 drives the compressor 2 through the gear 14 installed on the compressor 2, and simultaneously outputs power, and the exhaust gas after doing work is discharged from the outlet 7 of the expander to complete 1 cycle.
Claims (2)
1. A single screw internal combustion engine has 1 single screw air compressor and 1 single screw expander. The method is characterized in that: the single screw air compressor and the single screw expander are mounted on 1 shaft in opposite directions.
2. A single screw internal combustion engine has 1 single screw air compressor and 1 single screw expander. The method is characterized in that: the single-screw air compressor and the single-screw expander are arranged in parallel, have the same direction and are connected together by 1 pair of gears.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641411.7A CN110594011A (en) | 2018-06-13 | 2018-06-13 | Single screw internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810641411.7A CN110594011A (en) | 2018-06-13 | 2018-06-13 | Single screw internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110594011A true CN110594011A (en) | 2019-12-20 |
Family
ID=68849279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810641411.7A Withdrawn CN110594011A (en) | 2018-06-13 | 2018-06-13 | Single screw internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110594011A (en) |
-
2018
- 2018-06-13 CN CN201810641411.7A patent/CN110594011A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191220 |
|
| WW01 | Invention patent application withdrawn after publication |