CN112523904A - Exhaust gas recirculation pipeline with heating water cavity - Google Patents
Exhaust gas recirculation pipeline with heating water cavity Download PDFInfo
- Publication number
- CN112523904A CN112523904A CN202011379283.7A CN202011379283A CN112523904A CN 112523904 A CN112523904 A CN 112523904A CN 202011379283 A CN202011379283 A CN 202011379283A CN 112523904 A CN112523904 A CN 112523904A
- Authority
- CN
- China
- Prior art keywords
- egr
- egr valve
- water
- valve seat
- cavity
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/65—Constructional details of EGR valves
- F02M26/72—Housings
- F02M26/73—Housings with means for heating or cooling the EGR valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/51—EGR valves combined with other devices, e.g. with intake valves or compressors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention relates to an exhaust gas recirculation pipeline with a heating water cavity, which comprises an EGR valve seat, an EGR valve body, an EGR air inlet pipe, an air compressor and a water pump, wherein air cavities are formed in the EGR air inlet pipe, the EGR valve body and the EGR valve seat and are sequentially communicated through the air cavities; the EGR valve seat and the EGR air inlet pipe are further provided with water cavities and communicated through the water cavities, the air compressor is communicated with the EGR valve seat or the water cavities in the EGR air inlet pipe, and the water pump is communicated with the EGR air inlet pipe or the water cavities in the EGR valve seat. Through the independent production and processing of EGR disk seat, EGR valve body and EGR intake pipe each part, with water cavity and air cavity integration in each part, the hot water of flowing through the water cavity produces the heat radiation to the air cavity, prevents freezing of EGR valve block in the air cavity to improve the machining precision of water cavity and air cavity in each part and rationally utilized inner space, improve the assembly efficiency of follow-up each part.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to a waste gas recirculation pipeline with a heating water cavity.
Background
The national six-stage natural gas engine generally adopts the technical route of equivalent combustion, EGR and three-way catalysis. The use of EGR (exhaust gas recirculation) helps to reduce the heat load of equivalent burning natural gas engines, reducing the engine knock tendency. The combustion products of natural gas engines are high in water (H2O). Therefore, in the process of idling the engine for a long time in winter or in the process of deceleration and oil cut (at the moment, the valve plate of the EGR valve is hardly opened or even closed, but trace leakage cannot be avoided), the gaseous water can be condensed into liquid water, and the liquid water gradually freezes and freezes the EGR valve plate. At the moment, if the load of the engine is increased, the ice layer on the EGR valve plate can be thawed in a long time, so that the EGR valve cannot normally open the valve plate to work, the torque of the engine can be limited, and the power cannot be normally output.
Disclosure of Invention
The invention provides an exhaust gas recirculation pipeline with a heating water cavity, which aims to solve the problem that gaseous water is easy to freeze and the valve plate is frozen after the gaseous water is condensed into liquid water due to internal gas leakage of an EGR valve plate in winter.
The invention is realized by the following technical scheme.
An exhaust gas recirculation pipeline with a heating water cavity comprises an EGR valve seat, an EGR valve body, an EGR air inlet pipe, an air compressor and a water pump, wherein air cavities are formed in the EGR air inlet pipe, the EGR valve body and the EGR valve seat and are sequentially communicated through the air cavities; the EGR valve seat and the EGR air inlet pipe are further provided with water cavities and communicated through the water cavities, the air compressor is communicated with the EGR valve seat or the water cavities in the EGR air inlet pipe, and the water pump is communicated with the EGR air inlet pipe or the water cavities in the EGR valve seat. Through the independent production and processing of EGR disk seat, EGR valve body and EGR intake pipe each part, with water cavity and air cavity integration in each part, the hot water of flowing through the water cavity produces the heat radiation to the air cavity, prevents freezing of EGR valve block in the air cavity to improve the machining precision of water cavity and air cavity in each part and rationally utilized inner space, improve the assembly efficiency of follow-up each part.
The invention further improves the EGR valve seat, and also comprises a mixer, wherein an air cavity communicated with the EGR valve seat is formed in the mixer. The mixing of the exhaust gas with the air is accomplished by a mixer.
The invention further improves that the mixer is also provided with a water cavity, and the water cavity of the mixer is connected in parallel with the water cavity of the EGR valve seat 1. The water cavity of the mixer is connected in parallel to the water cavity of the EGR valve seat, so that the icing and blockage in the mixer caused by an extreme cold environment can be prevented.
In a further improvement of the invention, the EGR valve seat is provided with an open part which is communicated with a water cavity on the EGR valve seat and a water cavity of the mixer. The water cavity of the mixer is connected in parallel to the water cavity of the EGR valve seat through the open part.
The invention further improves that an opening for communicating the water cavity of the mixer with the outside is arranged on the mounting surface of the mixer, and the mounting surface of the mixer is a surface facing the EGR valve seat; the EGR valve seat is fixedly installed on the installation surface of the mixer, and the open part faces the installation surface of the mixer. The EGR valve seat is arranged on the mixer, so that the open part is in butt joint communication with the water cavity of the mixer, and the assembly efficiency among components is improved.
The invention is further improved in that the EGR valve seat, the EGR air inlet pipe and the water cavity on the mixer are arranged around the outer peripheral surface of the air cavity. So as to improve the heat radiation efficiency of the water cavity to the air cavity.
In a further improvement of the invention, the EGR valve body and the EGR inlet pipe are both fixedly mounted on the mixer. The mixer is used as a carrier, and convenience is provided for assembly of the EGR valve seat, the EGR valve body, the EGR air inlet pipe and the cavity communication between the mixers.
The invention further improves the air compressor, the water cavity of the EGR valve seat, the water cavity of the EGR air inlet pipe and the water pump are communicated through water pipes, and quick-insertion transition joints connected with the water pipes are arranged on openings of the EGR valve seat and the water cavity of the EGR air inlet pipe. Each water cavity is communicated with the water pipe through the quick-insertion transition joint in sequence, so that smooth circulation of liquid is ensured.
According to the technical scheme, the invention has the beneficial effects that: through the independent production and processing of EGR disk seat, EGR valve body and each part of blender, with water cavity and air cavity integration in each part, the hot water of flowing through the water cavity produces the heat radiation to the air cavity, prevents freezing of EGR valve block in the air cavity to improve the machining precision of water cavity and air cavity in each part and rationally utilized inner space, improve the assembly efficiency of follow-up each part.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
FIG. 2 is a side schematic view of an EGR valve seat in accordance with an embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of an EGR valve seat B in accordance with an embodiment of the present invention.
FIG. 4 is a schematic diagram of an EGR valve seat without an open portion according to an embodiment of the present invention.
Fig. 5 is a schematic structural view of an EGR valve seat with an open portion according to an embodiment of the present invention.
FIG. 6 is a schematic view of the exterior of an EGR valve manifold in accordance with an embodiment of the present invention.
Fig. 7 is a schematic sectional view of an EGR valve pipe a according to an embodiment of the present invention.
FIG. 8 is a schematic external view of a mixer according to an embodiment of the present invention.
FIG. 9 is a schematic cross-sectional view of a mixer according to an embodiment of the present invention.
In the drawings: 1. EGR valve seat, 11, open portion, 2, EGR valve body, 3, EGR trachea, 4, blender, 5, water pipe, 6, air compressor machine, 7, water pump.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in the accompanying drawings, an exhaust gas recirculation pipeline with a heating water cavity comprises an EGR valve seat 1, an EGR valve body 2, an EGR gas inlet pipe 3, an air compressor 6 and a water pump 7, wherein air cavities (the air cavities of the EGR valve seat 1 and the EGR gas inlet pipe 3 are shown as a1 and a2 in the accompanying drawings, and the structural schematic diagram of the air cavity of the EGR valve body 2 is not shown) penetrate through the EGR gas inlet pipe 3, the EGR valve body 2 and the EGR valve seat 1 and are sequentially communicated through the air cavities; still run through water cavity (water cavity is shown as B1 and B2 in the attached drawing) on EGR valve seat 1 and the EGR intake pipe 3 to through the water cavity intercommunication, air compressor machine 6 and EGR valve seat 1 or the water cavity intercommunication in EGR intake pipe 3, water pump 7 and EGR intake pipe 3 or the water cavity intercommunication in EGR valve seat 1. Through the independent production and processing of EGR disk seat 1, EGR valve body 2 and 3 each parts of EGR intake pipe, with water cavity and air cavity integration in each part, the hot water of flowing through the water cavity produces the heat radiation to the air cavity, prevents freezing of EGR valve block 2 in the air cavity to improve the machining precision of water cavity and air cavity in each part and reasonably utilized the inner space, improve the assembly efficiency of follow-up each part.
The exhaust gas recirculation pipeline with the heating water cavity further comprises a mixer 4, and an air cavity (the air cavity is shown as A3 in the drawing) communicated with the EGR valve seat 1 is formed in the mixer 4. The mixing of the exhaust gases with the air is accomplished by means of a mixer 4.
The mixer 4 is further provided with a water cavity (the water cavity is shown as B3 in the drawing), and the water cavity of the mixer 4 is connected in parallel with the water cavity of the EGR valve seat 1. The water cavity of the mixer 4 is connected in parallel with the water cavity of the EGR valve seat 1, so that the icing and blockage inside the mixer 4 caused by the extreme cold environment can be prevented.
An open part 11 is arranged on the EGR valve seat 1, and the open part 11 is communicated with a water cavity on the EGR valve seat 1 and a water cavity of the mixer 4. The parallel connection of the water chamber of the mixer 4 to the water chamber of the EGR valve seat 1 is realized by the open portion 11.
An opening for communicating the water cavity of the mixer 4 with the outside is formed in a mounting surface of the mixer 4 (the opening is shown as C3 in the drawing), and the mounting surface of the mixer 4 is a surface facing the EGR valve seat 1; the EGR valve seat 1 is fixedly mounted on the mounting surface of the mixer 4, and the opening portion 11 faces the mounting surface of the mixer 4. The EGR valve seat 1 is mounted on the mixer 4, so that the open part 11 is in butt joint communication with the water cavity of the mixer 4, and the assembly efficiency between the components is improved.
When the opening part 11 is one, the opening part 11 covers the water cavity inlet and outlet on the mixer 4.
When the number of the open portions 11 is two, the open portions 11 cover the inlet and the outlet of the water chamber on the mixer 4, respectively.
The EGR valve seat 1, the EGR air inlet pipe 3 and the water cavity on the mixer 4 are arranged around the outer peripheral surface of the air cavity. So as to improve the heat radiation efficiency of the water cavity to the air cavity.
EGR valve body 2 and EGR intake pipe 3 all fixed mounting be in on the blender 4. The mixer 4 is used as a carrier, and convenience is provided for assembly of chamber communication among the EGR valve seat 1, the EGR valve body 2, the EGR air inlet pipe 3 and the mixer 4.
The water cavity of air compressor machine 6, EGR valve seat 1, the water cavity of EGR intake pipe 3 and water pump 7 pass through water pipe 4 intercommunication, just all be equipped with the fast transition joint that inserts that meets with water pipe 5 on the water cavity opening of EGR valve seat 1 and EGR intake pipe 3 (the opening is shown as B1 and B2 in the attached drawing). Each water cavity is communicated with the water pipe 5 through the fast-insertion transition joint in sequence, so that smooth circulation of liquid is ensured.
The EGR valve body 2 is used as a component for controlling the flow rate of the gas in the air cavity passing by in unit time.
And a sealing ring is arranged at the communication position of the EGR valve seat 1 and the water cavity on the mixer 4.
And sealing rings are arranged at the communicated positions of the air cavities on the EGR valve seat 1, the EGR valve body 2, the EGR air pipe 3 and the mixer 4.
The air compressor 6 is arranged on one side of the EGR valve seat 1, and a water outlet of the air compressor 6 is communicated with a water inlet of a water cavity of the EGR valve seat 1; the water pump 7 is arranged on one side of the EGR air inlet pipe 3, and a water inlet of the water pump 7 is communicated with a water cavity water outlet of the EGR air inlet pipe 3.
The water pipe 5 is a nylon molding water pipe. The water pipe 5 is communicated with liquid which is heated and discharged by the air compressor 6 to heat the air cavity.
The air chambers of the EGR valve seat 1, the EGR air inlet pipe 3 and the mixer 4 are shown as A1, A2 and A3 in the drawing; the openings of the EGR valve seat 1, the EGR air inlet pipe 3 and the air cavity of the mixer 4 are shown as D1, D2 and D3 in the drawing; the EGR valve seat 1, the EGR air inlet pipe 3 and the water cavity of the mixer 4 are shown as B1, B2 and B3 in the drawing; the openings of the EGR valve seat 1, the EGR air inlet pipe 3 and the water cavity of the mixer 4 are shown as C1, B2 and B3 in the drawing.
According to the exhaust gas recirculation pipeline with the heating water cavity, the water cavity and the air cavity are integrated in each component through the independent production and processing of each component of the EGR valve seat, the EGR valve body and the EGR air inlet pipe, hot water flowing through the water cavity generates heat radiation on the air cavity, the EGR valve plate is prevented from being frozen in the air cavity, the processing precision of the water cavity and the air cavity in each component is improved, the internal space is reasonably utilized, and the assembly efficiency of subsequent components is improved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The exhaust gas recirculation pipeline with the heating water cavity is characterized by comprising an EGR valve seat (1), an EGR valve body (2), an EGR air inlet pipe (3), an air compressor (6) and a water pump (7), wherein air cavities are formed in the EGR air inlet pipe (3), the EGR valve body (2) and the EGR valve seat (1) and are sequentially communicated through the air cavities; the EGR valve seat (1) and the EGR air inlet pipe (3) are provided with water cavities and communicated with each other through the water cavities, the air compressor (6) is communicated with the water cavities on the EGR valve seat (1) or the EGR air inlet pipe (3), and the water pump (7) is communicated with the water cavities on the EGR air inlet pipe (3) or the EGR valve seat (1).
2. The exhaust gas recirculation pipeline with the heating water cavity is characterized by further comprising a mixer (4), wherein an air cavity communicated with the EGR valve seat (1) is formed in the mixer (4).
3. The exhaust gas recirculation pipeline with the heating water cavity is characterized in that a water cavity is further formed in the mixer (4), and the water cavity of the mixer (4) is connected to the water cavity of the EGR valve seat (1) in parallel.
4. The exhaust gas recirculation pipeline with the heating water cavity is characterized in that an open part (11) is formed in the EGR valve seat (1), and the open part (11) is communicated with a water cavity in the EGR valve seat (1) and a water cavity in the mixer (4).
5. The exhaust gas recirculation pipeline with the heating water cavity is characterized in that an opening for communicating the water cavity of the mixer (4) with the outside is formed in a mounting surface of the mixer (4), and the mounting surface of the mixer (4) faces to the EGR valve seat (1); the EGR valve seat (1) is fixedly arranged on the installation surface of the mixer (4), and the opening part (11) faces the installation surface of the mixer (4).
6. The exhaust gas recirculation pipeline with the heating water cavity is characterized in that the EGR valve seat (1), the EGR air inlet pipe (3) and the water cavity on the mixer (4) are arranged around the outer peripheral surface of the air cavity.
7. An EGR line with a heating water chamber according to any of claims 2-5, characterized in that the EGR valve body (2) and the EGR inlet pipe (3) are both fixedly mounted on the mixer (4).
8. The exhaust gas recirculation pipeline with the heating water cavity as claimed in any one of claims 2 to 5, wherein the air compressor (6), the water cavity of the EGR valve seat (1), the water cavity of the EGR air inlet pipe (3) and the water pump (7) are communicated through the water pipe (5), and the openings of the water cavities of the EGR valve seat (1) and the EGR air inlet pipe (3) are provided with quick-plug transition joints connected with the water pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011379283.7A CN112523904A (en) | 2020-11-30 | 2020-11-30 | Exhaust gas recirculation pipeline with heating water cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011379283.7A CN112523904A (en) | 2020-11-30 | 2020-11-30 | Exhaust gas recirculation pipeline with heating water cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112523904A true CN112523904A (en) | 2021-03-19 |
Family
ID=74995504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011379283.7A Pending CN112523904A (en) | 2020-11-30 | 2020-11-30 | Exhaust gas recirculation pipeline with heating water cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112523904A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170082008A1 (en) * | 2015-09-23 | 2017-03-23 | Hyundai Motor Company | System for controlling exhaust heat recovery and exhaust gas recirculation system |
| CN109441656A (en) * | 2018-12-12 | 2019-03-08 | 中国北方发动机研究所(天津) | A kind of cylinder head that multiloop is cooling |
| CN111173656A (en) * | 2020-03-09 | 2020-05-19 | 广西玉柴机器股份有限公司 | EGR valve with heating water cavity and heating method |
| CN111219272A (en) * | 2020-03-09 | 2020-06-02 | 广西玉柴机器股份有限公司 | Exhaust gas recirculation mixer with heating water cavity |
| CN111486028A (en) * | 2020-04-15 | 2020-08-04 | 宁波洁程汽车科技有限公司 | Engine exhaust gas recirculation integrated mechanism |
-
2020
- 2020-11-30 CN CN202011379283.7A patent/CN112523904A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170082008A1 (en) * | 2015-09-23 | 2017-03-23 | Hyundai Motor Company | System for controlling exhaust heat recovery and exhaust gas recirculation system |
| US9816424B2 (en) * | 2015-09-23 | 2017-11-14 | Hyundai Motor Company | System for controlling exhaust heat recovery and exhaust gas recirculation system |
| CN109441656A (en) * | 2018-12-12 | 2019-03-08 | 中国北方发动机研究所(天津) | A kind of cylinder head that multiloop is cooling |
| CN111173656A (en) * | 2020-03-09 | 2020-05-19 | 广西玉柴机器股份有限公司 | EGR valve with heating water cavity and heating method |
| CN111219272A (en) * | 2020-03-09 | 2020-06-02 | 广西玉柴机器股份有限公司 | Exhaust gas recirculation mixer with heating water cavity |
| CN111486028A (en) * | 2020-04-15 | 2020-08-04 | 宁波洁程汽车科技有限公司 | Engine exhaust gas recirculation integrated mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7311090B2 (en) | Engine exhaust gas passage flow orifice and method | |
| US20070028901A1 (en) | Exhaust gas recirculation system for internal combustion engine having superchargers | |
| US20080022676A1 (en) | Integrated charge air cooler and exhaust gas recirculation mixer | |
| CN109681332B (en) | Engine exhaust system | |
| CN111219272A (en) | Exhaust gas recirculation mixer with heating water cavity | |
| US10677140B1 (en) | Multi-port exhaust gas diverter valve for an internal combustion engine system | |
| JP2016017407A (en) | Exhaust mixing device | |
| CN112523904A (en) | Exhaust gas recirculation pipeline with heating water cavity | |
| CN114320676B (en) | Engine EGR (exhaust gas Recirculation) cooling control system, method and vehicle | |
| CN201176888Y (en) | Marine diesel exhausting pipe and six cylinder marine diesel | |
| CN211819737U (en) | Exhaust gas recirculation mixer with heating water cavity | |
| CN201461147U (en) | Exhaust gas recirculation system for engine | |
| CN111365110B (en) | Water jacket exhaust pipe assembly, engine fuel supply system and method | |
| CN211259132U (en) | Compressor volute, compressor and turbocharger | |
| CN211370577U (en) | Bypass type EGR cooling system and engine provided with same | |
| CN210858862U (en) | A pipeline subassembly and vehicle for vehicle | |
| JPS5815607Y2 (en) | Internal combustion engine exhaust valve seat cooling system | |
| CN206144649U (en) | Exhaust manifold and car exhaust system | |
| JP4814188B2 (en) | engine | |
| JP2012026296A (en) | Egr cooler system and flow path selector valve | |
| CN212359975U (en) | Diesel engine EGR bypass system | |
| CN213016553U (en) | Engine and vehicle with same | |
| CN212448018U (en) | Exhaust device of common-pipe ship diesel-fuel alternative propulsion system | |
| CN204225956U (en) | A kind of structure preventing crankcase ventilation system dynamic ice | |
| KR200180586Y1 (en) | Manifold for engine of ship |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210319 |