CN113431678B - Carbon deposition prevention structure of throttle body - Google Patents
Carbon deposition prevention structure of throttle body Download PDFInfo
- Publication number
- CN113431678B CN113431678B CN202110586709.4A CN202110586709A CN113431678B CN 113431678 B CN113431678 B CN 113431678B CN 202110586709 A CN202110586709 A CN 202110586709A CN 113431678 B CN113431678 B CN 113431678B
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- China
- Prior art keywords
- air flow
- throttle body
- carbon deposit
- prevention structure
- flow rate
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Classifications
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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
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/04—Cleaning of, preventing corrosion or erosion in, or preventing unwanted deposits in, combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention provides a carbon deposit prevention structure of a throttle body, wherein the carbon deposit prevention structure is arranged in the throttle body, two ends of the throttle body are respectively communicated with an engine and comprise an idle speed control mechanism, the carbon deposit prevention structure comprises a detachable installation part and an air flow rate blocking action part, the carbon deposit prevention structure is detachably arranged in the throttle body, and the carbon deposit prevention structure can reduce the flow rate of reverse jet air flow generated by an electronic injection system of the engine. The anti-carbon-deposit structure of the throttle body provided by the invention can achieve the effect of reducing impurities containing carbon deposit from entering the idle speed control mechanism along with reverse jet airflow.
Description
Technical Field
The invention relates to a throttle body, in particular to a carbon deposition prevention structure of the throttle body.
Background
When the pressure of the airflow reversely sprayed by an electronic fuel injection system in the engine is greater than the air inlet pressure of the engine, the airflow returns along an original path and enters an air filter through an idling valve, and the reverse spraying of the engine is finished. At the moment, the air inlet pressure of the engine is greater than the pressure of the back-spray airflow, the mixed gas remained in the air filter is sucked into the engine, and carbon particles in the back-spray mixed gas directly fall on the air passage surface of the idling valve. When a certain amount of carbon particles are accumulated, the air passage surface of the idling valve is raised, the area of the idling air passage is reduced, the air inflow entering the engine is reduced, the air inflow of the engine is unstable, and the idling of the engine is unstable. Further, the function of an idle speed control mechanism of the throttle body is affected, so that the idle speed of the vehicle is unstable, poor acceleration and the like occur.
Disclosure of Invention
In view of the defects of the existing throttle body, the invention provides a throttle body carbon deposit prevention structure which can achieve the effect of reducing impurities containing carbon deposit entering an idle speed control mechanism along with reverse jet airflow.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a carbon deposit structure is prevented to throttle body, prevent that carbon deposit structure sets up in the throttle body, throttle body both ends communicate the engine respectively and including idle speed control mechanism, prevent that carbon deposit structure blocks the effect portion including demountable installation department and air flow rate, prevent that carbon deposit structure detachable sets up in the throttle body, prevent that carbon deposit structure can reduce the velocity of flow of the anti-blowout air current that engine electricity injection system produced.
According to one aspect of the invention, the carbon deposition prevention structure further comprises a sealing ring installation part, and the sealing ring installation part is arranged on the detachable installation part or/and the joint of the air flow rate blocking action part and the detachable installation part.
According to one aspect of the invention, the air flow velocity blocking function part is cylindrical, and the back-spray air flow generated by the engine electronic injection system flows upwards from the bottom of the air flow velocity blocking function part.
According to one aspect of the invention, the middle part and the bottom part of the air flow velocity blocking action part are respectively provided with a cylinder which is coaxial with the air flow velocity blocking action part, and the bottom surface of the cylinder at the bottom part is provided with an inwards concave spherical cambered surface.
According to one aspect of the invention, the air flow rate blocking acting part is integrally hollowed, runway hollow holes are formed in the side face of the air flow rate blocking acting part, and circular hollow holes are formed in the bottom of the air flow rate blocking acting part.
According to one aspect of the present invention, the air flow velocity blocking acting portion is integrally hollowed, and a circular hollowed hole is provided at the bottom of the air flow velocity blocking acting portion.
According to an aspect of the present invention, the air flow velocity blocking acting portion has a double spiral shape.
According to one aspect of the invention, the detachable mounting part is cylindrical, the outer surface of the detachable mounting part is provided with threads, the anti-carbon deposit structure is connected with the throttle body through threads, and the top of the anti-carbon deposit structure is also provided with an inner hexagonal threaded mounting structure.
In accordance with one aspect of the invention, the seal ring mounting portion is an O-ring seal groove disposed on the removable mounting portion.
The implementation of the invention has the advantages that:
the invention provides a carbon deposit prevention structure of a throttle body, wherein the carbon deposit prevention structure is arranged in the throttle body, two ends of the throttle body are respectively communicated with an engine and comprise an idle speed control mechanism, the carbon deposit prevention structure comprises a detachable installation part and an air flow rate blocking action part, the carbon deposit prevention structure is detachably arranged in the throttle body, and the carbon deposit prevention structure can reduce the flow rate of reverse jet air flow generated by an electronic injection system of the engine. The anti-carbon-deposit structure of the throttle body provided by the invention can achieve the effect of reducing impurities containing carbon deposit from entering the idle speed control mechanism along with reverse jet airflow.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, 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 according to these drawings without creative efforts.
FIG. 1 is a schematic diagram illustrating the use of a carbon deposit prevention structure of a throttle body according to the present invention;
FIG. 2 is a schematic structural diagram of a throttle body carbon deposit prevention structure of embodiment 1 according to the present invention;
FIG. 3 is a schematic structural diagram of an embodiment 2 of a throttle body carbon deposit prevention structure according to the present invention;
FIG. 4 is a schematic structural diagram of an embodiment 3 of a throttle body carbon deposit prevention structure according to the present invention;
fig. 5 is a schematic structural diagram of a throttle body carbon deposit prevention structure according to embodiment 4 of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 protection scope of the present invention.
As shown in fig. 1-5, the utility model provides a carbon deposit structure is prevented to throttle body, prevent carbon deposit structure and set up in the throttle body, throttle body both ends communicate the engine respectively and including idle speed control mechanism, prevent carbon deposit structure including demountable installation portion 3 and air velocity block effect portion 4, prevent carbon deposit structure detachable and set up in the throttle body, prevent carbon deposit structure can reduce the velocity of flow of the anti-air-jet that engine electronic fuel injection system produced.
In this embodiment, prevent that carbon deposit structure still includes sealing washer installation department 2, sealing washer installation department 2 sets up on demountable installation department 3 or/and air flow velocity blocks the junction of effect portion 4 and demountable installation department 3.
The first embodiment is as follows: as shown in fig. 2, the air flow velocity blocking acting part 4 is cylindrical, and the back spray air flow generated by the engine electronic fuel injection system flows upwards from the bottom of the air flow velocity blocking acting part 4.
Example two: as shown in fig. 3, the middle and the bottom of the air flow velocity blocking action part 4 are respectively provided with a cylinder coaxial with the air flow velocity blocking action part, and the bottom surface of the cylinder at the bottom is provided with an inwards concave spherical cambered surface.
Example three: as shown in fig. 4, the air flow blocking acting part 4 is integrally hollowed, a runway hollow hole is formed in the side surface of the air flow blocking acting part 4, and a circular hollow hole is formed in the bottom of the air flow blocking acting part 4.
Example four: as shown in fig. 5, the air flow velocity blocking acting part 4 is integrally hollowed out, and a circular hollowed hole is formed at the bottom of the air flow velocity blocking acting part 4.
In the present embodiment, the air flow velocity blocking operation portion 4 has a double spiral shape.
In this embodiment, demountable installation department 3 is cylindrical, demountable installation department 3's surface is equipped with the screw thread, prevent that the long-pending carbon structure passes through threaded connection with the throttle body, the top of preventing the long-pending carbon structure still is provided with hexagon socket's screw thread mounting structure 1.
In this embodiment, the seal ring mounting portion 2 is an O-ring seal groove provided on the detachable mounting portion 3.
Foreign matter including engine oil and soot, which is reversely sprayed from the engine, enters the inside of the throttle body through an idle air passage on the engine side of the throttle body. When the back-spray airflow passes through the anti-carbon deposit structure, the back-spray airflow is prevented from entering the idle speed control mechanism due to the blockage of the anti-carbon deposit structure, and the carbon deposit adhesion amount is reduced.
The flow velocity of the part of the carbon deposition inhibiting part is changed after the structure for preventing carbon deposition is added. This change in flow velocity causes foreign matter such as carbon deposition to adhere and deposit on the carbon deposition inhibiting member. The inflow of the carbon deposit in the idle speed control mechanism mounting cavity is suppressed and reduced.
The implementation of the invention has the advantages that:
the invention provides a carbon deposit prevention structure of a throttle body, wherein the carbon deposit prevention structure is arranged in the throttle body, two ends of the throttle body are respectively communicated with an engine and comprise an idle speed control mechanism, the carbon deposit prevention structure comprises a detachable installation part and an air flow rate blocking action part, the carbon deposit prevention structure is detachably arranged in the throttle body, and the carbon deposit prevention structure can reduce the flow rate of reverse jet air flow generated by an electronic injection system of the engine. The anti-carbon-deposit structure of the throttle body provided by the invention can achieve the effect of reducing impurities containing carbon deposit from entering the idle speed control mechanism along with reverse jet airflow.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. The utility model provides a carbon deposit structure is prevented to throttle body which characterized in that: the anti-carbon deposition structure is arranged in the throttle valve body, two ends of the throttle valve body are respectively communicated with the engine and comprise an idle speed control mechanism, the anti-carbon deposition structure comprises a detachable installation part and an air flow rate blocking action part, the anti-carbon deposition structure is detachably arranged in the throttle valve body, and the anti-carbon deposition structure can reduce the flow rate of reverse jet air flow generated by an electronic injection system of the engine; the carbon deposition prevention structure further comprises a sealing ring installation part, and the sealing ring installation part is arranged on the detachable installation part or/and the joint of the air flow velocity blocking action part and the detachable installation part; the detachable mounting part is cylindrical, threads are arranged on the outer surface of the detachable mounting part, and the anti-carbon deposition structure is connected with the throttle valve body through the threads; the air flow blocking action part is integrally hollowed out or is in a double-spiral shape.
2. The throttle body carbon deposit prevention structure of claim 1, wherein: the air flow velocity blocking action part is cylindrical, and the reverse jet air flow generated by the engine electronic injection system flows upwards from the bottom of the air flow velocity blocking action part.
3. The throttle body carbon deposit prevention structure of claim 2, wherein: the middle part and the bottom of the air flow rate blocking action part are respectively provided with a cylinder which is coaxial with the air flow rate blocking action part, and the bottom surface of the cylinder is provided with an inwards concave spherical cambered surface.
4. The throttle body carbon deposit prevention structure of claim 2, wherein: the air flow rate blocks the whole hollow of action part, the side that air flow rate blocked action part is provided with runway dress fretwork hole, the bottom that air flow rate blocked action part is provided with circular fretwork hole.
5. The throttle body carbon deposit prevention structure of claim 2, wherein: air flow rate blocks the whole fretwork of effect portion, air flow rate blocks the bottom of effect portion and is provided with circular fretwork hole.
6. The throttle body carbon deposit prevention structure of claim 2, wherein: the air flow velocity blocking action part is double-spiral.
7. A throttle body anti-carbon deposit structure according to any of claims 3-6, characterized in that: and the top of the carbon deposition prevention structure is also provided with an inner hexagonal thread mounting structure.
8. The throttle body carbon deposit prevention structure of claim 7, wherein: the sealing ring installation part is an O-shaped ring sealing groove which is arranged on the detachable installation part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110586709.4A CN113431678B (en) | 2021-05-27 | 2021-05-27 | Carbon deposition prevention structure of throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110586709.4A CN113431678B (en) | 2021-05-27 | 2021-05-27 | Carbon deposition prevention structure of throttle body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113431678A CN113431678A (en) | 2021-09-24 |
| CN113431678B true CN113431678B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110586709.4A Active CN113431678B (en) | 2021-05-27 | 2021-05-27 | Carbon deposition prevention structure of throttle body |
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| CN (1) | CN113431678B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015975A (en) * | 2002-08-14 | 2004-02-21 | 현대자동차주식회사 | a carbon deposit protecting structure of idle speed control system for LPG vehicle |
| CN207004657U (en) * | 2017-08-08 | 2018-02-13 | 北京汽车研究总院有限公司 | A kind of throttle valve structure |
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| JPS60243330A (en) * | 1984-05-18 | 1985-12-03 | Hitachi Ltd | Apparatus for controlling quantity of intake air supplied to engine |
| US5121724A (en) * | 1989-11-16 | 1992-06-16 | Nissan Motor Company, Ltd. | Multi-cylinder internal combustion engine with individual port throttles upstream of intake valves |
| JPH041467A (en) * | 1990-04-18 | 1992-01-06 | Hitachi Ltd | Fuel controller |
| JP3192355B2 (en) * | 1995-09-20 | 2001-07-23 | 株式会社日立製作所 | Intake control device for internal combustion engine |
| JPH1089492A (en) * | 1996-09-10 | 1998-04-07 | Mikuni Corp | Air quantity adjusting throttle valve structure |
| US6041754A (en) * | 1997-04-14 | 2000-03-28 | Nippon Soken, Inc. | Idle intake control device |
| KR100304278B1 (en) * | 1998-03-31 | 2001-11-30 | 이계안 | Throttle body for vehicle |
| JP4193319B2 (en) * | 2000-03-24 | 2008-12-10 | 株式会社デンソー | Intake device for internal combustion engine |
| EP1296049B1 (en) * | 2000-06-19 | 2008-10-15 | Keihin Corporation | Bypass intake amount controller |
| US6655392B2 (en) * | 2001-11-07 | 2003-12-02 | Bg Products, Inc. | Method and apparatus for cleaning a fuel injected engine plenum |
| JP3925287B2 (en) * | 2002-04-22 | 2007-06-06 | 株式会社ケーヒン | Bypass air control device in intake control device |
| JP2005061396A (en) * | 2003-07-31 | 2005-03-10 | Denso Corp | Air control valve |
| JP4093173B2 (en) * | 2003-10-31 | 2008-06-04 | 株式会社デンソー | Throttle control device for internal combustion engine |
| CN104989533B (en) * | 2015-07-13 | 2018-08-07 | 江门逸和机电有限公司 | A kind of electronic throttle of anti-carbon deposition |
| CN107288763A (en) * | 2017-08-08 | 2017-10-24 | 北京汽车研究总院有限公司 | A kind of throttle valve structure and air throttle carbon distribution self cleaning method |
| JP6963516B2 (en) * | 2018-01-26 | 2021-11-10 | 株式会社ミクニ | Throttle device |
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2021
- 2021-05-27 CN CN202110586709.4A patent/CN113431678B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040015975A (en) * | 2002-08-14 | 2004-02-21 | 현대자동차주식회사 | a carbon deposit protecting structure of idle speed control system for LPG vehicle |
| CN207004657U (en) * | 2017-08-08 | 2018-02-13 | 北京汽车研究总院有限公司 | A kind of throttle valve structure |
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| Publication number | Publication date |
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| CN113431678A (en) | 2021-09-24 |
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