CN201461056U - Exhaust manifold of natural gas automobile engine - Google Patents
Exhaust manifold of natural gas automobile engine Download PDFInfo
- Publication number
- CN201461056U CN201461056U CN2009201279115U CN200920127911U CN201461056U CN 201461056 U CN201461056 U CN 201461056U CN 2009201279115 U CN2009201279115 U CN 2009201279115U CN 200920127911 U CN200920127911 U CN 200920127911U CN 201461056 U CN201461056 U CN 201461056U
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- gas
- air flue
- exhaust manifold
- gas exhaust
- air
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Abstract
The utility model relates to an exhaust manifold of a natural gas automobile engine. The exhaust manifold has an integral structure and consists of a plurality of parallel gas channels; gas inlet ends of all the gas channels are respectively independent gas inlets, and gas outlet ends of all the gas channels are combined into two exhaust ports which are independent mutually; each exhaust port is communicated with at least two gas channels; the gas inlets of all the gas channels are provided with flange disks used for connecting cylinder covers; the two exhaust ports are arranged on the same flange disk used for connecting exhaust cylinders; the end surface of the flange disk used for connecting the cylinder covers and the end surface of the flange disk used for connecting exhaust cylinders form an included angle of 90 degrees; and the vertical distance of the axis of the gas inlet to the end surface of the flange disk of a gas outlet is 180 to 200mm. The exhaust manifold of the natural gas automobile engine adopts two exhaust ports for exhausting, increases the exhaust amount of the exhaust manifold, reduces exhaust resistance, improves the power performance of the engine, increases the length of the gas channel of the exhaust manifold and reduces the temperature of the exhausted gas.
Description
Technical field
The utility model relates to the component on the natural gas engine, is specifically related to a kind of gas exhaust manifold of gas-fueled vehicles motor.
Background technique
Novel, energy-saving and environmental protection are ideas of development of the required drive energy in New Times society's sustainable development, bring into play gas storage advantage (can use 200 years) simultaneously and demand changing over to the social development demand of power utilization urgently, rely on each side energy pressure such as gasoline, diesel oil for further alleviating automobile power, so to need a large amount of on the market be the motor car engine of fuel with the rock gas.And existing be that the motor car engine of fuel is commonly with the improved duel fuel engine of taking into account rock gas of petrol engine with the rock gas, or with the improved single natural gas fueled engines of diesel oil, discharge by gas exhaust manifold behind the fuel gas buring of this motor, the ventilation air flue of existing gas exhaust manifold is shorter, waste gas is got rid of from cylinder and is had very high-temperature, by short gas exhaust manifold, the temperature that arrives exhaust pipe is higher, and exhaust pipe is at high temperature worked for a long time and damaged easily.In addition, a plurality of air flues of gas exhaust manifold merge to an exhaust outlet, and the air displacement of a relief opening is limited, if discharge gas is more in the cylinder, gas exhaust manifold just can not in time scavenge, thereby influences engine power performance.How to improve the power that rock gas is the motor of fuel, improving with diesel engine is the power character of basic improved natural gas engine, the object of always studying for a long time for people, but unresolved.
Summary of the invention
The purpose of this utility model provides a kind of gas exhaust manifold of gas-fueled vehicles motor, this gas exhaust manifold adopts two relief opening exhausts, increase the air displacement of gas exhaust manifold, reduce exhaust resistance and improve engine power performance, and the length of gas exhaust manifold air flue increases, and reduces the temperature of discharging gas.
The purpose of this utility model is achieved in that the gas exhaust manifold structure that is formed in one, it is characterized in that: gas exhaust manifold is made up of a plurality of air flues arranged side by side, the inlet end of each air flue is respectively independently suction port, two separate relief openings are merged in the outlet side of each air flue, each relief opening is communicated with at least two air flues, the suction port of each air flue is provided with the flange plate that is used to connect cylinder head, two relief openings are arranged on the same flange plate that is used to connect exhaust pipe, the described flange plate end face that is used to connect cylinder head is 90 ° of angles with the flange plate end face that is connected exhaust pipe, and the shaft axis of described suction port to the perpendicular distance of relief opening flange plate end face is 180～200mm.
Described a plurality of air flue arranged side by side, a relief opening is merged in the outlet side that wherein is positioned at the air flue in two outsides, and another relief opening is merged in the outlet side of the air flue in the middle of being positioned at.
Downward oblique bending behind described a plurality of air flue horizontal-extending arranged side by side, the angle that is positioned at the shaft axis of the shaft axis of air flue horizontal segment in two outsides and downward oblique bending section is 90～110 °, and the angle of the shaft axis of the air flue horizontal segment in the middle of being positioned at and the shaft axis of downward oblique bending section is 100～120 °.
Described gas exhaust manifold is made up of four air flues arranged side by side, wherein be positioned at first air flue in the outside and the outlet side of the 4th air flue and merge into a relief opening, another relief opening is merged in second air flue in the middle of being positioned at and the outlet side of the 3rd air flue, it is 70～90 ° that the center line of first air flue and the 4th air flue intersects the angle that forms, and it is 30～50 ° that the center line of second air flue and the 3rd air flue intersects the angle that forms.
The length of at least two air flues that a described relief opening is communicated with is identical.
The flange plate that being used to of the suction port end of described each air flue connects cylinder head connects as one successively.
Described gas exhaust manifold is provided with a plurality of projectioies that screw is installed that have.
Because adopt technique scheme, gas exhaust manifold is made up of a plurality of air flues arranged side by side, the inlet end of each air flue is respectively independently suction port, and two separate relief openings are merged in the outlet side of each air flue.Gas exhaust manifold adopts two separate relief openings, and under the identical situation of air flue size, relief opening quantity increases, increased the air displacement of gas exhaust manifold, the waste gas of firing chamber is in time got rid of, so that the motor continuous doing work increases the power performance of starting.The described flange plate end face that is used to connect cylinder head is 90 ° of angles with the flange plate end face that is connected exhaust pipe, this relief opening the suction port of air flue and air flue is arranged on both direction, make exhaust pipe be installed on next door, motor bottom, can not interfere with other component of motor.The shaft axis of described suction port is 180～200mm to the perpendicular distance of relief opening flange plate end face, and the air flue of gas exhaust manifold is longer, makes waste gas have the moving time of more multithread in air flue, reduces the temperature of discharging gas, also helps the heat radiation of engine cylinder simultaneously.The flange plate that being used to of the suction port end of described each air flue connects cylinder head connects as one successively, makes the flange plate Transverse plane form the attachment face of an one, and the installation of gas exhaust manifold and cylinder head is more firm.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the C of Fig. 1 is to view;
Fig. 3 is that the A of Fig. 1 is to view;
Fig. 4 is that the B of Fig. 1 is to view;
Fig. 5 is an inlet end schematic representation of the present utility model.
In the accompanying drawing, 1 is gas exhaust manifold, and 1a, 1b, 1c, 1d are air flue, and 2 for connecting the flange plate of exhaust pipe, and 2a, 2b are relief opening, and 3 for being used to connect the flange plate of cylinder head, and 4 is double-screw bolt, and 5 is fitting seat, and 6 is suction port.
Embodiment
Referring to figs. 1 through Fig. 5, the gas exhaust manifold 1 of motor is installed on the cylinder head, described gas exhaust manifold 1 structure that is formed in one, gas exhaust manifold is made up of a plurality of air flues arranged side by side, the inlet end of each air flue is respectively independently suction port 6, two separate relief openings are merged in the outlet side of each air flue, a relief opening is merged in the outlet side that wherein is positioned at the air flue in two outsides, another relief opening is merged in the outlet side of the air flue in the middle of being positioned at, two relief openings make effective leaving area of gas exhaust manifold increase, increasing air displacement. each relief opening is communicated with at least two air flues, and the length of at least two air flues that each relief opening is communicated with is identical, gas exhaust manifold of the present utility model is made up of four air flues arranged side by side, comprise the first air flue 1a, the second air flue 1b, the 3rd air flue 1c, the 4th air flue 1d, wherein be positioned at the first air flue 1a in the outside and the outlet side of the 4th air flue 1d and merge into a relief opening 2a, another relief opening 2b is merged in second air flue 1b in the middle of being positioned at and the outlet side of the 3rd air flue 1c, it is 70～90 ° that the center line of first air flue and the 4th air flue intersects the angle that forms, the utility model adopts 80 degree angles, it is 30～50 ° that the center line of second air flue and the 3rd air flue intersects the angle that forms, the utility model adopts 40 degree angles. certainly, the number of the cylinder of natural gas engine also can be other numbers, for example, the motor of 8 cylinders, then the number of gas exhaust manifold air flue is 8,8 air flues are merged into two relief openings equally. downward oblique bending behind described a plurality of air flue horizontal-extendings arranged side by side, the angle that is positioned at the shaft axis of the shaft axis of air flue horizontal segment in two outsides and downward oblique bending section is 90～110 °, the utility model adopts 100 °, the angle of the shaft axis of the air flue horizontal segment in the middle of being positioned at and the shaft axis of downward oblique bending section is 100～120 °, the utility model adopts 109 °, the downward oblique bending of a plurality of air flues arranged side by side, make exhaust pipe be installed in next door, motor bottom. the suction port 6 of each air flue is provided with the flange plate 3 that is used to connect cylinder head, the mounting hole that passes the flange plate 3 that connects cylinder head by bolt is installed in cylinder to gas exhaust manifold and covers, the flange plate that being used to of the suction port end of each air flue connects cylinder head connects as one successively, make the flange plate Transverse plane form the attachment face of an one. two relief openings are arranged on the same flange plate 2 that is used to connect exhaust pipe, described flange plate 3 end faces that are used to connect cylinder head are 90 ° of angles with flange plate 2 end faces that are connected exhaust pipe, the shaft axis of described suction port to the perpendicular distance of air outlet flange plate end face is 180～200mm, outlet pipe has long ventilation air flue, helping the cooling of gas. described gas exhaust manifold is provided with a plurality of projectioies that screw is installed that have, the fitting seat 5 of the projection of horizontal segment for axially being provided with on the air flue in the middle of being positioned at, be positioned at the double-screw bolt 4 of projection for radially being provided with at the downward oblique bending section of first air flue and the 4th air flue middle part, the projection of merging place of second air flue and the 3rd air flue is the double-screw bolt 4 that radially is provided with, and described double-screw bolt is used for motor miscellaneous part is installed.
Using process of the present utility model: gas exhaust manifold is installed on the cylinder head of motor by the flange plate of the entrance point of air flue, the relief opening of air flue also is connected on the exhaust pipe by flange plate, the waste gas that produces in the cylinder of motor enters gas exhaust manifold by the air flue suction port, enter exhaust pipe from the relief opening of gas exhaust manifold, realize the exhaust of motor, two relief openings increase the gas exhaust manifold air displacement, reduce exhaust resistance and help improving engine power performance.
Claims (7)
1. the gas exhaust manifold of a gas-fueled vehicles motor, the gas exhaust manifold structure that is formed in one, it is characterized in that: gas exhaust manifold is made up of a plurality of air flues arranged side by side, the inlet end of each air flue is respectively independently suction port, two separate relief openings are merged in the outlet side of each air flue, each relief opening is communicated with at least two air flues, the suction port of each air flue is provided with the flange plate that is used to connect cylinder head, two relief openings are arranged on the same flange plate that is used to connect exhaust pipe, the described flange plate end face that is used to connect cylinder head is 90 ° of angles with the flange plate end face that is connected exhaust pipe, and the shaft axis of described suction port to the perpendicular distance of relief opening flange plate end face is 180～200mm.
2. the gas exhaust manifold of gas-fueled vehicles motor according to claim 1, it is characterized in that: described a plurality of air flues arranged side by side, a relief opening is merged in the outlet side that wherein is positioned at the air flue in two outsides, and another relief opening is merged in the outlet side of the air flue in the middle of being positioned at.
3. the gas exhaust manifold of gas-fueled vehicles motor according to claim 2, it is characterized in that: downward oblique bending behind described a plurality of air flue horizontal-extendings arranged side by side, the angle that is positioned at the shaft axis of the shaft axis of air flue horizontal segment in two outsides and downward oblique bending section is 90～110 °, and the angle of the shaft axis of the air flue horizontal segment in the middle of being positioned at and the shaft axis of downward oblique bending section is 100～120 °.
4. the gas exhaust manifold of gas-fueled vehicles motor according to claim 1, it is characterized in that: described gas exhaust manifold is made up of four air flues arranged side by side, wherein be positioned at first air flue in the outside and the outlet side of the 4th air flue and merge into a relief opening, another relief opening is merged in second air flue in the middle of being positioned at and the outlet side of the 3rd air flue, it is 70～90 ° that the center line of first air flue and the 4th air flue intersects the angle that forms, and it is 30～50 ° that the center line of second air flue and the 3rd air flue intersects the angle that forms.
5. according to the gas exhaust manifold of claim 1,2 or 4 arbitrary described gas-fueled vehicles motors, it is characterized in that: the length of at least two air flues that a described relief opening is communicated with is identical.
6. the gas exhaust manifold of gas-fueled vehicles motor according to claim 1 is characterized in that: the flange plate that being used to of the suction port end of described each air flue connects cylinder head connects as one successively.
7. the gas exhaust manifold of gas-fueled vehicles motor according to claim 1 is characterized in that: described gas exhaust manifold is provided with a plurality of projectioies that screw is installed that have.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201279115U CN201461056U (en) | 2009-07-03 | 2009-07-03 | Exhaust manifold of natural gas automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201279115U CN201461056U (en) | 2009-07-03 | 2009-07-03 | Exhaust manifold of natural gas automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461056U true CN201461056U (en) | 2010-05-12 |
Family
ID=42388410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201279115U Expired - Fee Related CN201461056U (en) | 2009-07-03 | 2009-07-03 | Exhaust manifold of natural gas automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331650A (en) * | 2017-12-13 | 2018-07-27 | 江苏多为泵业股份有限公司 | A kind of discharge manifold |
-
2009
- 2009-07-03 CN CN2009201279115U patent/CN201461056U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331650A (en) * | 2017-12-13 | 2018-07-27 | 江苏多为泵业股份有限公司 | A kind of discharge manifold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHTC POWER CO., LTD. Free format text: FORMER OWNER: CHONGQING PUNAI GAS ENGINE CO., LTD. Effective date: 20120427 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 400039 JIULONGPO, CHONGQING TO: 330013 NANCHANG, JIANGXI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120427 Address after: 330013 Jiangxi Province, Nanchang economic and Technological Development Zone Green Lanlu Patentee after: Hi Tech Power Co. Ltd. Address before: 400039 Chongqing Jiulongpo Branch City Road Erlang students Pioneering Park C District No. 2 Patentee before: Chongqing Punai Gas Engine Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20150703 |
|
| EXPY | Termination of patent right or utility model |