CN101319629A - Engine with double-exhaustion pipe line structure - Google Patents
Engine with double-exhaustion pipe line structure Download PDFInfo
- Publication number
- CN101319629A CN101319629A CNA2007101106075A CN200710110607A CN101319629A CN 101319629 A CN101319629 A CN 101319629A CN A2007101106075 A CNA2007101106075 A CN A2007101106075A CN 200710110607 A CN200710110607 A CN 200710110607A CN 101319629 A CN101319629 A CN 101319629A
- Authority
- CN
- China
- Prior art keywords
- exhaust valve
- exhaust
- engine
- dead center
- valve
- 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.)
- Pending
Links
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000002912 waste gas Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001347978 Major minor Species 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009183 running Effects 0.000 description 1
Classifications
-
- 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
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses a double-exhaust pipe engine. The design that the exhaust valve of a four-stroke engine is started too early produces largely leakage and waste of usable power, so a structure with a main pipe and an auxiliary exhaust pipe is designed. The engine is characterized in that a main exhaust valve is arranged on a cylinder wall, and the exhaust valve on a cylinder cover is taken as an auxiliary exhaust valve; the two exhaust pipes are used to improve the exhaust speed and delay the exhaust time.
Description
Technical field
The invention belongs to the motor car engine field.
Background technique
Four-cycle diesel or petrol engine, the design principle at its distribution device and air inlet phase angle is similar, it is different to be that concrete parameter has, the design of its exhaust advance angle all early, generally Before Bottom Dead Center between 40-80 °.Analyze and find, though exhaust submits to the too early design at angle to improve the working condition of motor, but valve is opened leak waste and the insufficient increase of the fuel combustion pollution that promptly causes a large amount of useful work too early, and can not solve thoroughly still that exhaust valve is too small to block the influence that brings to motor to combustion gas.
Summary of the invention
The objective of the invention is to solve the deficiency of former designing and arranging air pipe structure, and a kind of engine with double-exhaustion pipe line structure is provided.
Technological scheme of the present invention be on the cylinder wall of engine piston lower dead center to 15 ° of scopes before bottom dead center the perforate of ring cylinder as main exhaust valve, exhaust valve on the cylinder head is as secondary exhaust valve, the opening time design of secondary exhaust valve is after bottom dead center about 10 °, opens when main exhaust valve will be closed to be as the criterion.Intake valve on the cylinder head, be designed to 50 ° of budc between opening, more shift to an earlier date than common engine, has pressure-increasing machine and towards the motor of cooler structure, pressure-increasing machine can be designed to only be connected to primary exhaust conduit also can be connected to subsidiary bodies such as pressure-increasing machine earlier with the major-minor gas exhaust piping and after closing connection.
Advantage of the present invention is:
1, the exhauxt valve opens time postpones greatly, and fuel combustion is more abundant, has reduced pollution, and the work done energy is accepted by piston to greatest extent and outwards exported useful work.
2, main exhaust valve is programmable enough big, and waste gas can flow out cylinder fast in a large number, has also taken away a large amount of heats in advance, reduce the temperature in the cylinder, help improving air inflow, the motor of pressure-increasing machine design is arranged, its air-flow that flows out fast also helps the utilization of pressure-increasing machine.
3, the air pressure in the cylinder reduces fast and helps piston and return top dead center, also helps remainder of exhaust gas and discharges from secondary exhaust valve.
4, the main exhaust valve project organization is simple, and reliable performance is stable.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Among the figure: 1 main exhaust valve, 2 intake valves, 3 pressure-increasing machines, 4 suction tude, 5 intercoolers, 6 secondary exhaust valves, 7 exhaust manifolds, 8 oil sprayers, 9 valve spring, 10 top dead centers, 11 lower dead center, 12 cylinder block, 13 pistons, 14 connecting rods, 15 bent axles, 16 main exhaust valve exhaust branch pipes, 17 secondary exhaust valve exhaust branch pipes, 18 valve heads, 19 cylinders, 20 cylinder head.
Embodiment
Below in conjunction with drawings and Examples the present invention is further described.
As shown in the figure, the ring cylinder is offered main exhaust valve 1 on the cylinder wall of lower dead center 11 to 15 ° the scope before bottom dead center, exhaust valve on the cylinder head 20 is as secondary exhaust valve 6, and 3 of pressure-increasing machines are connected on the main exhaust valve exhaust branch pipe 16, and 17 of secondary exhaust valve exhaust branch pipes are connected on the exhaust manifold 7.Its working procedure and principle are:
1, intake valve 2 is opened in the preceding 50 ° of scopes back 30 ° to lower dead center 11 of top dead center 10, piston 13 from top dead center come downwards to lower dead center and cross lower dead center to after bottom dead center 30 ° the time air inlet finish.
2, piston is from after bottom dead center 30 ° the time, and inlet and exhaust valve is all closed, and piston stroking upward is to top dead center, with air compression in the cylinder 19.
3, air by high compression after temperature rise to 400-700 °, this moment oil sprayer 8 to in-cylinder injection diesel oil and lighted work done, promote descent of piston to lower dead center, and by the outside output useful work of connecting rod 14 and bent axle 15.
4, live when coming downwards to before bottom dead center 15 °, main exhaust valve begins to open, the waste gas of a large amount of High Temperature High Pressure flows out fast from main exhaust valve, and promotion pressure-increasing machine 3 runnings, main exhaust valve is closed 15 ° the time after bottom dead center and stops to discharge waste gas, at this moment secondary exhaust valve is just opened, residue in the cylinder, and waste gas is promoted up from secondary exhaust valve discharge cylinder by piston.
The present invention will be described above with reference to a concrete preferred embodiment, but those skilled in the art can be improved and be revised concrete parameter within the scope of the invention and do not departed from the scope and spirit of the present invention, and the scope of the invention is limited by claims.
Claims (1)
1. engine with double-exhaustion pipe line structure, it is characterized in that, it is by opening in the main exhaust valve (1) of piston lower dead center to 15 ° of left and right sides scope inside cylinder walls before bottom dead center, open the gas distribution system of forming intake valve (2) the formation motor on twin exhaust pipes road and the cylinder head at the secondary exhaust valve (6) on the cylinder head (20), the motor that the attached parts of pressure-increasing machine are arranged, pressure-increasing machine (3) is connected directly on the main exhaust valve exhaust branch pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101106075A CN101319629A (en) | 2007-06-07 | 2007-06-07 | Engine with double-exhaustion pipe line structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101106075A CN101319629A (en) | 2007-06-07 | 2007-06-07 | Engine with double-exhaustion pipe line structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101319629A true CN101319629A (en) | 2008-12-10 |
Family
ID=40179863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101106075A Pending CN101319629A (en) | 2007-06-07 | 2007-06-07 | Engine with double-exhaustion pipe line structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101319629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383862A (en) * | 2010-08-30 | 2012-03-21 | 中国石油化工股份有限公司 | Piston-type expander with liquid operation structure |
-
2007
- 2007-06-07 CN CNA2007101106075A patent/CN101319629A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383862A (en) * | 2010-08-30 | 2012-03-21 | 中国石油化工股份有限公司 | Piston-type expander with liquid operation structure |
| CN102383862B (en) * | 2010-08-30 | 2013-02-06 | 中国石油化工股份有限公司 | Piston-type expander with liquid operation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081210 |