CN203161379U - Natural gas supply structure of oil-gas mixture dual-fuel engine - Google Patents
Natural gas supply structure of oil-gas mixture dual-fuel engine Download PDFInfo
- Publication number
- CN203161379U CN203161379U CN2013201439002U CN201320143900U CN203161379U CN 203161379 U CN203161379 U CN 203161379U CN 2013201439002 U CN2013201439002 U CN 2013201439002U CN 201320143900 U CN201320143900 U CN 201320143900U CN 203161379 U CN203161379 U CN 203161379U
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- China
- Prior art keywords
- natural gas
- valve seat
- intake manifold
- injection valve
- fuel engine
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- Expired - Fee Related
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Fuel-Injection Apparatus (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a natural gas supply structure of an oil-gas mixture dual-fuel engine. The natural gas supply structure of the oil-gas mixture dual-fuel engine comprises an intake manifold and an air cylinder cover, wherein a natural gas ejection valve seat is arranged between the intake manifold and a gas inlet passage of the air cylinder cover, an installation hole is formed in the natural gas ejection valve seat, a natural gas ejection valve is installed in the installation hole, and a three-way gas passage respectively communicated with the intake manifold, the installation hole and the gas inlet passage of the air cylinder cover is arranged inside the natural gas ejection valve seat. The natural gas supply structure of the oil-gas mixture dual-fuel engine not only is easy to machine, manufacture, and install on site, but also is small in damage to the engine, and is safe and reliable to use.
Description
Technical field
The utility model relates to a kind of natural gas supply structure of oil gas mixing duel fuel engine.
Background technique
The core technology of oil gas mixing duel fuel engine repacking is, how accurately controls the emitted dose of rock gas according to different operating modes.At present, diesel engine oil is changed the repacking of gas, the overwhelming majority adopts and in suction tude mixer is installed, and utilizes the single-point air feed to realize the method that rock gas is supplied with.Not only there is the shortcoming that reduces the air inlet amount in the single-point plenum system, and owing to be subjected to the different influence of different engine charge tubular constructions, differ in the mixer mounting point, can not accurately control the risk of the gas leakage when unavoidably having valve overlap and suction tude tempering constantly to the natural gas supply of each cylinder.
It also is at the terminal mounting hole that bores of the former intake manifold of motor that part adopts the method for multiple spot air feed, and the natural gas injection valve is installed in each cylinder intake valve front end, by the at regular time and quantity air feed of ECU (Electrical Control Unit) realization to each cylinder, reaches the accurate control to mixture strength.But this refiting scheme has produced the physical damage that can not restore to former engine structure, and the user does not accept usually.And machinings such as boring, tapping all need could guarantee its manufacturability and quality of processing by the process equipment of specialty, repacking on-the-spot to intake manifold hole, tapping, operation easier is big, repacking realizes difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of natural gas supply structure of oil gas mixing duel fuel engine, and this gas-supplying structure not only is easy to manufacturing and on-the-spot the installation, and little to engine demolition, safe and reliable.
For achieving the above object, the technical solution of the utility model is: a kind of natural gas supply structure of oil gas mixing duel fuel engine, comprise intake manifold and cylinder head, be provided with the natural gas injection valve seat between the intake duct of described intake manifold and described cylinder head, offer mounting hole on the described natural gas injection valve seat, the natural gas injection valve is installed on the described mounting hole, and described natural gas injection valve seat inside is provided with three air vents that are connected with the intake duct of intake manifold, mounting hole and cylinder head respectively.
In the utility model one embodiment, the shape of the interface of the intake duct of described three air vents and intake manifold, cylinder head, size adapt with the intake duct of described intake manifold, cylinder head respectively.
In the utility model one embodiment, described natural gas injection valve seat is an overall structure, and described natural gas injection valve seat is provided with described mounting hole and three air vents identical with intake manifold quantity, so that the processing of the integral body of valve seat.
In the utility model one embodiment, described natural gas injection valve seat is made of a plurality of injection valve seat monomers identical with intake manifold quantity, only be provided with a described mounting hole and three air vents on the described injection valve seat monomer, to guarantee that valve seat is connected with the accurate contraposition of the intake duct of intake manifold, cylinder head.
The beneficial effects of the utility model are by increasing a natural gas injection valve seat between cylinder head and intake manifold, having realized a kind of novel electric controlled multi-point plenum system dexterously, to supply with rock gas to oil gas mixing duel fuel engine.This gas-supplying structure not only is easy to manufacturing, and can take on-the-spot the installation again to as an assembly after well according to the shape of engine intake manifold, cylinder head processing and assembling in machine works, very is convenient to on-the-spotly install, construction.Simultaneously, this gas-supplying structure is only done addition to former motor, does not do subtraction, and real the realization destroyed zero of former motor physical arrangement, has very strong practicability and market application foreground.
Description of drawings
Fig. 1 is the utility model embodiment one structural representation.
Fig. 2 is the utility model embodiment one inside air passage structure schematic representation.
Fig. 3 is the utility model embodiment two structural representation.
Among the figure, the 1-suction tude, the 2-intake manifold, 3-natural gas injection valve seat, the 4-mounting hole, the 5-cylinder head, 6-three air vents, 7-natural gas injection valve, 8-sprays the valve seat monomer.
Embodiment
The natural gas supply structure of oil gas mixing duel fuel engine of the present utility model, as shown in Figure 1, 2, comprise intake manifold 2 and cylinder head 5, be provided with natural gas injection valve seat 3 between the intake duct of intake manifold 2 and cylinder head 5, offer mounting hole 4 on the natural gas injection valve seat 3, natural gas injection valve 7 is installed on the mounting hole 4, and natural gas injection valve seat 3 inside are provided with three air vents 6 that are connected with the intake duct of intake manifold 2, mounting hole 4 and cylinder head 5 respectively.
In order to guarantee combining closely of natural gas injection valve seat 3 and intake manifold 2, cylinder head 5, the shape of three air vents 6 and the interface of the intake duct of intake manifold 2, cylinder head 5, size adapt with the intake duct of intake manifold 2, cylinder head 5 respectively.In preferred embodiment of the present utility model, for the tightness that guarantees to connect, between the junction plane of natural gas injection valve seat 3 and intake manifold 2, be respectively equipped with sealing gasket between the junction plane of natural gas injection valve seat 3 and cylinder head 5, and when assembling, adopt threaded fastener to connect.
As shown in Figure 1, in the utility model embodiment one, for the ease of the integral body processing of valve seat, natural gas injection valve seat 3 is an overall structure, and natural gas injection valve seat 3 is provided with the mounting hole 4 identical with intake manifold quantity and three air vents 6.
As shown in Figure 3, in the utility model embodiment two, in order to guarantee that the valve seat air flue is connected with the accurate contraposition of the intake duct of intake manifold, cylinder head, the natural gas injection valve seat is made of a plurality of injection valve seat monomers 8 identical with intake manifold quantity, sprays on the valve seat monomer 8 only to be provided with a mounting hole and three air vents.
More than be preferred embodiment of the present utility model, all changes of doing according to technical solutions of the utility model when the function that produces does not exceed the scope of technical solutions of the utility model, all belong to protection domain of the present utility model.
Claims (4)
1. the natural gas supply structure of an oil gas mixing duel fuel engine, comprise intake manifold and cylinder head, it is characterized in that: be provided with the natural gas injection valve seat between the intake duct of described intake manifold and described cylinder head, offer mounting hole on the described natural gas injection valve seat, the natural gas injection valve is installed on the described mounting hole, and described natural gas injection valve seat inside is provided with three air vents that are connected with the intake duct of intake manifold, mounting hole and cylinder head respectively.
2. the natural gas supply structure of a kind of oil gas mixing duel fuel engine according to claim 1 is characterized in that: the shape of the interface of the intake duct of described three air vents and intake manifold, cylinder head, size adapt with the intake duct of described intake manifold, cylinder head respectively.
3. the natural gas supply structure of a kind of oil gas mixing duel fuel engine according to claim 1, it is characterized in that: described natural gas injection valve seat is an overall structure, described natural gas injection valve seat is provided with described mounting hole and three air vents identical with intake manifold quantity, so that the processing of the integral body of valve seat.
4. the natural gas supply structure of a kind of oil gas mixing duel fuel engine according to claim 1, it is characterized in that: described natural gas injection valve seat is made of a plurality of injection valve seat monomers identical with intake manifold quantity, only be provided with a described mounting hole and three air vents on the described injection valve seat monomer, to guarantee that valve seat is connected with the accurate contraposition of the intake duct of intake manifold, cylinder head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201439002U CN203161379U (en) | 2013-03-27 | 2013-03-27 | Natural gas supply structure of oil-gas mixture dual-fuel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201439002U CN203161379U (en) | 2013-03-27 | 2013-03-27 | Natural gas supply structure of oil-gas mixture dual-fuel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203161379U true CN203161379U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201439002U Expired - Fee Related CN203161379U (en) | 2013-03-27 | 2013-03-27 | Natural gas supply structure of oil-gas mixture dual-fuel engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN203161379U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343593A (en) * | 2014-09-02 | 2015-02-11 | 哈尔滨工程大学 | Gas inlet device of gas fuel engines and fuel gas injection control method |
| CN112431695A (en) * | 2020-12-15 | 2021-03-02 | 广西玉柴机器股份有限公司 | Measuring system for EGR rate of gas engine cylinder |
-
2013
- 2013-03-27 CN CN2013201439002U patent/CN203161379U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343593A (en) * | 2014-09-02 | 2015-02-11 | 哈尔滨工程大学 | Gas inlet device of gas fuel engines and fuel gas injection control method |
| WO2016033915A1 (en) * | 2014-09-02 | 2016-03-10 | 哈尔滨工程大学 | Gas intake apparatus and fuel gas injection control method for gaseous fuel engine |
| CN112431695A (en) * | 2020-12-15 | 2021-03-02 | 广西玉柴机器股份有限公司 | Measuring system for EGR rate of gas engine cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20180327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |