EP4314539A1 - Ansaugsystem - Google Patents
AnsaugsystemInfo
- Publication number
- EP4314539A1 EP4314539A1 EP22703930.2A EP22703930A EP4314539A1 EP 4314539 A1 EP4314539 A1 EP 4314539A1 EP 22703930 A EP22703930 A EP 22703930A EP 4314539 A1 EP4314539 A1 EP 4314539A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intake manifold
- valve unit
- throttle valve
- clean air
- intake
- 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.)
- Granted
Links
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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10078—Connections of intake systems to the engine
- F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
-
- 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
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1035—Details of the valve housing
-
- 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
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/107—Manufacturing or mounting details
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10019—Means upstream of the fuel injection system, carburettor or plenum chamber
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
- F02M35/10144—Connections of intake ducts to each other or to another device
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10255—Arrangements of valves; Multi-way valves
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1034—Manufacturing and assembling intake systems
- F02M35/10354—Joining multiple sections together
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/104—Intake manifolds
Definitions
- the present invention relates to an intake system with an intake manifold and a throttle valve unit, as known from DE 102011 081 780 A1, and a method for assembling an intake system.
- the intake manifold and the throttle valve unit have complementary flanges which are screwed together when the intake system is assembled.
- An end of the throttle valve unit facing away from the intake manifold is not shown; DE 102011 081 780 A1 does not reveal how a clean air pipe is to be attached to this end, if necessary. Successively screwing the throttle valve unit to the intake manifold and then the clean air pipe to the throttle valve unit is time-consuming.
- the assembly of the intake system can be simplified and accelerated by first pushing the throttle valve unit onto the intake manifold, then pushing the clean air pipe onto the throttle valve unit and finally screwing the clean air pipe through the throttle valve unit to the intake manifold.
- the throttle valve unit will fall and become damaged.
- the throttle body may protrude from the throttle body and be damaged by the fall. The throttle body must then be discarded and another fitted in its place.
- the intake system has an intake manifold, a throttle valve unit and a clean air pipe, the throttle valve unit having a first end face adjoining an intake manifold inlet of the intake manifold and a second end face adjoining an outlet of the clean air pipe, and the intake manifold inlet and the first end face interacting, a mounting position of the Throttle valve unit on the intake manifold clearly defined first contours, wherein the first contours include at least one positioning pin of the intake manifold, which extends in a first bore of the throttle valve unit through a plane parallel to the first end face that contains the center of gravity of the throttle valve unit.
- This positioning pin provides the throttle valve unit with a secure hold in the period between being pushed onto the intake manifold and screwing it on, even if the direction in which the throttle valve unit is pushed onto the intake manifold is horizontal or even slightly rising when the intake system is installed in a vehicle.
- the intake manifold inlet is surrounded by a flange of the intake manifold and the positioning pin is anchored to the flange.
- the flange is preferably part of said first contours.
- the positioning pin can be dimensioned long enough to extend over to, or even over, a second face of the throttle body which, when the intake system is fully assembled, connects to an outlet of the clean air pipe protrude the second front side.
- the positioning pin also offers protection against falling if the throttle valve unit is not in direct contact with the intake manifold inlet, e.g. because the direction of attachment is horizontal and the throttle valve unit is therefore not pressed against the intake manifold inlet by its own weight, or because a sealing ring is still undeformed when mounted between the intake manifold inlet and the throttle valve unit keeps both at a distance.
- a bore can be provided on the clean air pipe, in which the end of the positioning pin extending beyond the second end face engages. The bore and the positioning pin can thus form part of the second contours.
- the cross section of the positioning pin is not greater than the cross section of the first bore over its entire length. In this way, the throttle valve unit can be attached without force having to be applied to deform the positioning pin or the throttle valve unit.
- the cross-section of the positioning pin is sized to frictionally engage an inner surface of the first bore of the throttle body. The friction contributes to holding the throttle valve unit securely on the intake manifold in the period of time between the throttle valve unit being pushed onto the intake manifold and the screwing of the throttle valve unit and the clean-air manifold.
- the number of positioning pins and first bores is at least two each. Two locating pins and bores accommodating them are sufficient to clearly specify a position in which the throttle valve unit can be placed on the intake manifold. This ensures that as soon as the intake manifold is placed, the throttle body is also in the correct position and both can be attached to the intake manifold without further position correction.
- an outlet of the clean air tube is surrounded by a flange of the clean air tube, and the positioning pin extends through the flange to a side of the flange remote from the throttle body.
- the above-mentioned bore of the clean air pipe can be formed in this flange.
- second contours of the throttle valve unit and the outlet of the clean air pipe clearly specify a mounting position of the clean air pipe on the throttle valve unit.
- These second contours can be the tip of the positioning pin mentioned above and the bore of the Include clean air pipe.
- they include bores in the throttle valve unit, into which pins of the clean air pipe engage.
- the first contours comprise at least one section of a second bore of the throttle valve unit on the intake manifold side and a pin of the intake manifold engaging in the section on the intake manifold side
- the second contours comprise a section of the second bore on the clean air manifold side and a pin of the clean air manifold engaging in the section on the clean air manifold side.
- the throttle valve unit comprises a second borehole in which a pin of the intake manifold engages on the intake manifold side and a pin of the clean air manifold engages on the intake manifold facing away.
- the number of the second bores, the pins of the suction pipe engaging in them and the pins of the clean-air pipe engaging in them is at least two each. These are sufficient to clearly determine the installation position of the clean air pipe on the throttle valve unit.
- a further aspect of the invention relates to a method for assembling an intake system, as described above and below, having the steps:
- screws can be used for clamping, which extend through aligned bores of the intake manifold and the clean air pipe and preferably also the throttle valve unit.
- One of the bores in the suction pipe and the clean-air pipe can each have an internal thread in order to provide the screw with a hold.
- FIG. 3 shows a throttle valve unit which is placed on an intake manifold.
- the intake system 1 shows a perspective exploded view of the intake system 1.
- the intake system 1 has an intake pipe 2, a throttle valve unit 6 and a clean air pipe 8.
- the intake manifold 2 has an intake manifold inlet 4 .
- the intake manifold inlet 4 is surrounded by a flange 32 .
- a sealing surface of the flange 32 facing the throttle valve unit 6 is flat with a surface normal (not shown) which is oriented essentially horizontally in the installation position of the intake manifold 4 in a motor vehicle.
- the throttle assembly 6 includes a housing having a central passageway in which a throttle valve is pivotally mounted.
- the housing has a first end face 28 which faces the flange 32 of the suction pipe 2 and a second end face 30 which faces the clean air pipe 8 .
- a plane 0 running parallel to both faces 28, 30 contains the center of gravity of the throttle valve assembly 6.
- the distance between the faces 28, 30 is less than the diameter of the central passage extending from one face 28 to the other 30, so that the throttle valve can protrude beyond the end faces 28, 30 in an open position.
- In the housing of the throttle valve unit 6 are a first bore 12, a second bore 10 and possibly a through hole 22 distributed around the central passage and extend in the direction of the surface normal.
- the clean air pipe 8 has an outlet 36 surrounded by a flange 38 at one end facing the throttle valve unit 6 .
- Two pins 14 are anchored to the flange 38 .
- the pins 14 are the pins 16 opposite mirror images.
- the throttle valve unit 6 When assembling the intake system, the throttle valve unit 6 is first placed on the intake manifold inlet 4 of the intake manifold 2 . As shown in FIG. 2, two first bores 12 in the throttle valve unit 6 accommodate the positioning pins 18 of the intake manifold 2 .
- the positioning pins 18 extend from the flange 32 over the entire length of the bores 12 and thereby cross the plane 0.
- the cross section of the positioning pins 18 is dimensioned such that they bear against the inner sides of the bores 12 with a friction fit.
- the positioning pins In order to ensure a secure frictional connection on the one hand, but on the other hand to prevent excessive friction from making it unnecessarily difficult to attach the throttle valve unit 6, the positioning pins have a non-circular cross-section that only touches the insides of the bores 12 at several points on their circumference, e.g. in the form of a polygon , cross or star.
- the locating pins 18 may also be molded from a different, more malleable material than the flange 32 and the body of the throttle body 6, such as plastic.
- the positioning pins 18 can thus prevent the throttle valve unit 6 from falling off the intake manifold 2 when the throttle valve unit 6 is not yet screwed to the intake manifold 2, even if the surface normal along which the throttle valve unit 6 is pushed onto the positioning pins is in the direction runs slightly uphill towards the flange 32 .
- the inclination of the surface normal to the horizontal can be up to 10°.
- Two pins 16 of the intake manifold 2 are each accommodated in a section of the second bores 10 on the intake manifold side.
- the pins 16 are too short to reach the end face 30 or just level 0, and a section of the second bores 10 on the clean air pipe side is empty.
- the engagement of the pins 18, 16 of the flange 32 in the bores 12, 10 of the throttle valve unit 6 define their position on the intake manifold 2 clearly; In this position, the bores 20 of the flange 32 are aligned with the through bores 22 of the throttle valve unit 6.
- a position in which the clean air pipe 8 can be plugged onto the second end face 30 of the throttle valve unit 6 is clearly defined by the requirement that the pins 14 of the clean air pipe 8 must engage in the sections of the second bores 10 on the clean air pipe side.
- through holes 24 in the flange 36 of the clean air pipe 8 are aligned with the through holes 22 of the throttle valve unit 6.
- Holes 20 (or if the holes 20 are unthreaded, with a nut placed behind the holes 20) to engage.
- FIG. 3 shows the intake system 1 in an assembled state. Here are the clean air pipe 8 and the throttle unit 6 on the intake manifold 2 by means of
- Screws 26 attached. As can be seen in the final assembled position of the intake system 1 , the positioning pin 18 protrudes from the first end face 28 of the throttle valve unit 6 , in particular from the first bore 12 .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021202929.9A DE102021202929A1 (de) | 2021-03-25 | 2021-03-25 | Ansaugsystem |
| PCT/EP2022/052739 WO2022199919A1 (de) | 2021-03-25 | 2022-02-04 | Ansaugsystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4314539A1 true EP4314539A1 (de) | 2024-02-07 |
| EP4314539B1 EP4314539B1 (de) | 2026-04-01 |
Family
ID=80447196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22703930.2A Active EP4314539B1 (de) | 2021-03-25 | 2022-02-04 | Ansaugsystem |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4314539B1 (de) |
| CN (1) | CN117083453A (de) |
| DE (1) | DE102021202929A1 (de) |
| WO (1) | WO2022199919A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3141730A1 (fr) * | 2022-11-08 | 2024-05-10 | Psa Automobiles Sa | Repartiteur d’admission pour moteur de vehicule automobile |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2766974A (en) * | 1954-04-02 | 1956-10-16 | Acf Ind Inc | De-icing means for carburetors |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3294377A (en) * | 1963-12-13 | 1966-12-27 | Acf Ind Inc | Carburetor |
| JP3790992B2 (ja) * | 2002-11-20 | 2006-06-28 | 愛知機械工業株式会社 | インテークマニホールドの取付構造 |
| US8464689B2 (en) * | 2010-09-15 | 2013-06-18 | Ford Global Technologies, Llc | Throttle body to intake manifold mounting |
| DE102010046470A1 (de) | 2010-09-24 | 2012-03-29 | Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) | Flanschverbindung sowie Verfahren zur Montage derselben |
| JP2015129502A (ja) * | 2013-12-03 | 2015-07-16 | 日本電産コパル株式会社 | コアレスモータ駆動式スロットルバルブ装置 |
| FR3019616B1 (fr) * | 2014-04-08 | 2016-12-16 | Valeo Systemes De Controle Moteur | Vanne a plot de soutien d'une goulotte electrique |
| JP2017075569A (ja) * | 2015-10-15 | 2017-04-20 | 株式会社ニッキ | 内燃機関用の吸気装置 |
-
2021
- 2021-03-25 DE DE102021202929.9A patent/DE102021202929A1/de active Pending
-
2022
- 2022-02-04 CN CN202280024301.0A patent/CN117083453A/zh active Pending
- 2022-02-04 WO PCT/EP2022/052739 patent/WO2022199919A1/de not_active Ceased
- 2022-02-04 EP EP22703930.2A patent/EP4314539B1/de active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2766974A (en) * | 1954-04-02 | 1956-10-16 | Acf Ind Inc | De-icing means for carburetors |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022199919A1 (de) | 2022-09-29 |
| CN117083453A (zh) | 2023-11-17 |
| DE102021202929A1 (de) | 2022-09-29 |
| EP4314539B1 (de) | 2026-04-01 |
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