EP0816668B1 - Dünnwandige Saugrohr für eine Brennkraftmaschine - Google Patents
Dünnwandige Saugrohr für eine Brennkraftmaschine Download PDFInfo
- Publication number
- EP0816668B1 EP0816668B1 EP97106127A EP97106127A EP0816668B1 EP 0816668 B1 EP0816668 B1 EP 0816668B1 EP 97106127 A EP97106127 A EP 97106127A EP 97106127 A EP97106127 A EP 97106127A EP 0816668 B1 EP0816668 B1 EP 0816668B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intake manifold
- valve
- opening
- internal combustion
- combustion engine
- 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.)
- Expired - Lifetime
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
- 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
-
- 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
- F02M35/10236—Overpressure or vacuum relief means; Burst protection
-
- 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
- F02M35/10301—Flexible, resilient, pivotally or movable parts; Membranes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
Definitions
- the invention relates to an intake manifold for an internal combustion engine according to the preamble of claim 1.
- a suction pipe is known from DE 25 26 550 A.
- This document describes that the causes of intake manifold explosions, which lead to the partial or total destruction of mixture preparation systems in internal combustion engines due to breakage or fire, can be traced back to ignitions of the air / fuel mixture upstream with the intake valve open or sucked in during the suction stroke. Because of these ignitions, there is a disproportionate increase in the pressure in the intake manifold, as a result of which the intake manifold is damaged or even destroyed. Such a destruction could not occur with "thick-walled” intake manifolds because the material strength of the intake manifold was sufficient to withstand the disproportionate pressure.
- Such "thick-walled” suction pipes were, for example, made of sand cast with wall thicknesses of about 4 millimeters and had no separating seams. These suction pipes were heavy and stable.
- Suction pipes made of correspondingly lighter materials are manufactured.
- Made in series from die-cast aluminum or plastic injection Intake pipes have a wall thickness of about 2 millimeters. Because of the Manufacturing process such suction pipes have a joint at which two halves of the Suction pipe can be connected to each other, or a separating seam on that above certain pressures as well as the small "thin" wall thickness form a weak point.
- an auxiliary outlet (opening) is provided to avoid damage to the suction pipe and to discharge the disproportionate pressure, which is opened when a predetermined pressure is exceeded within the suction pipe.
- the secondary outlet is initially closed by a pot-shaped cover, which can be placed on a nozzle on the outside of the intake manifold wall.
- this pot-shaped lid has the decisive disadvantage that it releases the secondary outlet when intake manifold explosions occur and thus creates a pressure equalization in the atmosphere; after the suction pipe explosion has subsided and the auxiliary outlet has been released, further operation of the internal combustion engine is in no way possible, since after opening the auxiliary outlet the circuit of the fuel pump or the ignition current of the internal combustion engine is interrupted.
- the object of the invention is a generic intake manifold to be designed in such a way that the disadvantages described are avoided.
- the drawing shows a section through a section 1 of a downstream one, not shown Throttle valve connector lying plastic / metal intake pipe, which to one of the Cylinder of the internal combustion engine leads.
- this intake manifold is provided downstream of the throttle valve connector to arrange an opening 2 leading into the atmosphere by a pressure in the intake manifold 1 responsive valve 3 is controlled.
- This valve 3 is a so-called elastomer umbrella valve 4, which projects into a central opening 6 with a stem 5 and through a pin extension 7 a screw bushing 8 is held.
- the screw bushing 8 has a collar ring 10 which is spaced apart by ribs 9 and onto which a cover flap 11 is pushed on and clipped to it, the ribs 9 of the screw bushing 8 form a tool attachment 12, so that the screw bushing 8 in the opening 2 can be screwed in.
- the invention is based on the knowledge that the bursting of the suction pipes 1 by after the ignition of the internal combustion engine which occasionally occurs of stored / condensed in the intake manifold 1 and with that contained in the intake manifold 1 Air mixed fuel / fuel vapor residues is caused.
- this pressure increase is achieved by opening the Valve 3 limited.
- the air / fuel gas can escape into the free atmosphere.
- the burning gas cools down through ribs 13 divided opening 2 and also in the outlet opening 13 covered by the cap 11 between the screw bushing 8 and collar ring 10.
- valve 3 closes again, the internal combustion engine remains operational.
- the cap 11 prevents dirt and water from entering the opening 2.
Landscapes
- 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)
- Means For Warming Up And Starting Carburetors (AREA)
- Exhaust Gas After Treatment (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Catching Or Destruction (AREA)
- Characterised By The Charging Evacuation (AREA)
Description
In dieser Entgegenhaltung ist beschrieben, daß die Ursachen von Saugrohrexplosionen, die zur teilweisen oder ganzen Zerstörungen von Gemischaufbereitungsanlagen bei Brennkraftmaschinen durch Bruch oder Brand führen, auf Zündungen des bei offenem Einlaßventils vorgelagerten oder während des Saughubes angesaugten Luft-Kraftstoff-Gemisches zurückzuführen sind. Aufgrund dieser Zündungen kommt es zu einem überproportionalen Anstieg des Druckes in dem Saugrohr, wodurch das Saugrohr beschädigt oder sogar zerstört wird. Bei "dickwandigen" Saugrohren konnte es zu einer solchen Zerstörung nicht kommen, da die Materialstärke des Saugrohres ausreichte, um dem überproportionalen Druck standzuhalten. Solche "dickwandigen" Saugrohre waren beispielsweise aus Sandguß mit Wandstärken von etwa 4 Millimetern hergestellt und wiesen keine Trenn-Nähte auf. Diese Saugrohre waren schwer und stabil.
Ein gattungsgemäßes Saugrohr ist aus der EP 0 280 122 A 2 bekannt.
Claims (3)
- Dünnwandiges Saugrohr (1) für eine Brennkraftmaschine mit Anschlußkanälen, die zu den Zylindern der Brennkraftmaschine führen, und wenigstens einem Drosselklappenstutzen, mit dem die von der Brennkraftmaschine angesaugte Brennluft gesteuert wird, wobei das Saugrohr (1) eine stromab des Drosselklappenstutzens angeordnete und in die Atmosphäre führende Öffnung (2) aufweist, die bei Übersteigen eines vorbestimmten Druckes innerhalb des Saugrohres (1) geöffnet wird, damit die Wandung des Saugrohres (1) nicht durch Übersteigen des vorbestimmten Druckes beschädigt wird, wobei die Öffnung (2) durch ein auf einen Überdruck im Saugrohr (1) ansprechendes Ventil (3) gesteuert wird und das Ventil (3) nach Wegfall des Überdrucks selbsttätig wieder schließt, dadurch gekennzeichnet, daß das Ventil (3) von einem Elastomer-Regenschirmventil (4) gebildet ist, das mit einem Stiel (5) in eine zentrale Öffnung (6) hineinragt und durch einen Stiftansatz (7) einer Schraubbuchse (8) gehalten ist.
- Saugrohr nach Anspruch 1, dadurch gekennzeichnet, daß die Schraubbuchse (8) einen durch Rippen (9) beabstandeten Kragenring (10) aufweist, auf den eine Abdeckkappe (11) aufgeschoben und mit diesem verklippst ist.
- Saugrohr nach Anspruch 2, dadurch gekennzeichnet, daß die Rippen (9) der Schraubbuchse (8) einen Werkzeugansatz (12) bilden, so daß die Schraubbuchse (9) in die Öffnung (2) eingeschraubt werden kann.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02004931A EP1211409A1 (de) | 1996-06-27 | 1997-04-15 | Dünnwandiges Saugrohr für eine Brennkraftmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19625768A DE19625768B4 (de) | 1996-06-27 | 1996-06-27 | Dünnwandiges Saugrohr für eine Brennkraftmaschine |
DE19625768 | 1996-06-27 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02004931A Division EP1211409A1 (de) | 1996-06-27 | 1997-04-15 | Dünnwandiges Saugrohr für eine Brennkraftmaschine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0816668A2 EP0816668A2 (de) | 1998-01-07 |
EP0816668A3 EP0816668A3 (de) | 1998-04-22 |
EP0816668B1 true EP0816668B1 (de) | 2002-09-18 |
Family
ID=7798193
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106127A Expired - Lifetime EP0816668B1 (de) | 1996-06-27 | 1997-04-15 | Dünnwandige Saugrohr für eine Brennkraftmaschine |
EP02004931A Withdrawn EP1211409A1 (de) | 1996-06-27 | 1997-04-15 | Dünnwandiges Saugrohr für eine Brennkraftmaschine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02004931A Withdrawn EP1211409A1 (de) | 1996-06-27 | 1997-04-15 | Dünnwandiges Saugrohr für eine Brennkraftmaschine |
Country Status (8)
Country | Link |
---|---|
US (1) | US5826554A (de) |
EP (2) | EP0816668B1 (de) |
JP (1) | JP3893192B2 (de) |
KR (1) | KR100472870B1 (de) |
BR (1) | BR9703747A (de) |
DE (2) | DE19625768B4 (de) |
ES (1) | ES2179236T3 (de) |
MX (1) | MX9704054A (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10047197A1 (de) | 2000-09-23 | 2002-04-25 | Bosch Gmbh Robert | Saugrohr für eine Brennkraftmaschine |
DE10131110A1 (de) * | 2001-06-27 | 2003-01-09 | Mann & Hummel Filter | Zwischenflanschsystem für eine direkteinspritzende Brennkraftmaschine |
US9750905B2 (en) * | 2002-02-04 | 2017-09-05 | Fisher & Paykel Healthcare Limited | Breathing assistance apparatus |
US6571753B1 (en) | 2002-03-20 | 2003-06-03 | Brunswick Corporation | Passive air vent for a marine engine |
PL1640601T3 (pl) * | 2004-09-28 | 2007-05-31 | Magneti Marelli Powertrain Spa | Kolektor dolotowy z naczyniem powietrznym do silnika spalinowego |
DE102009048209A1 (de) * | 2009-10-05 | 2011-04-07 | Mann + Hummel Gmbh | Luftfilter für eine Brennkraftmaschine |
JP5959156B2 (ja) * | 2011-04-11 | 2016-08-02 | 株式会社セキソー | ダクト連結部の製造方法 |
US9873325B1 (en) | 2014-10-22 | 2018-01-23 | Hydro-Gear Limited Partnership | Drive apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0280122A2 (de) * | 1987-02-24 | 1988-08-31 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Sauganlage für Brennkraftmaschinen |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1677019A (en) * | 1926-01-14 | 1928-07-10 | Casati Pietro | Arrangement for eliminating the dangers due to back fires in carburetors |
DE1918382A1 (de) * | 1969-04-11 | 1970-10-22 | Porsche Kg | Einrichtung an Brennkraftmaschinen zum Verhindern des Ausstroemens von Brennstoff aus dem Gemischbildungssystem in die Atmosphaere |
DE2526550A1 (de) * | 1975-06-13 | 1976-12-23 | Porsche Ag | Saugrohr fuer brennkraftmaschinen |
US4499916A (en) * | 1983-01-31 | 1985-02-19 | Allied Corporation | Vacuum check valve |
US4538555A (en) * | 1984-05-07 | 1985-09-03 | John Kite | Power plate |
DE3536522A1 (de) * | 1985-10-12 | 1987-04-16 | Audi Ag | Saugrohr fuer eine brennkraftmaschine |
US5150669A (en) * | 1989-11-06 | 1992-09-29 | General Motors Corporation | Pressure relief means for integrated induction system |
US4986225A (en) * | 1990-06-08 | 1991-01-22 | General Motors Corporation | Intake reservoir system for an engine having a check valve |
US4991547A (en) * | 1990-06-08 | 1991-02-12 | General Motors Corporation | Intake port pressure control system for engine induction system |
US5018486A (en) * | 1990-06-08 | 1991-05-28 | General Motors Corporation | Pressure relief system for a check valve |
US5129426A (en) * | 1991-05-13 | 1992-07-14 | Vernay Laboratories, Inc. | Tube mounted check valve |
US5186198A (en) * | 1991-12-12 | 1993-02-16 | Penn Troy Maching Company, Inc. | Intake manifold relief valve |
US5280769A (en) * | 1993-05-04 | 1994-01-25 | General Motors Corporation | Pressure relief means for induction system |
US5375565A (en) * | 1993-12-16 | 1994-12-27 | Caterpillar Inc. | Flame arrestor and method of manufacture |
JPH08100722A (ja) * | 1994-09-29 | 1996-04-16 | Toyota Motor Corp | 内燃機関の吸気管構造 |
US5507256A (en) * | 1995-06-14 | 1996-04-16 | Ford Motor Company | Intake manifold positive pressure relief disk |
-
1996
- 1996-06-27 DE DE19625768A patent/DE19625768B4/de not_active Expired - Fee Related
-
1997
- 1997-04-15 EP EP97106127A patent/EP0816668B1/de not_active Expired - Lifetime
- 1997-04-15 DE DE59708238T patent/DE59708238D1/de not_active Expired - Lifetime
- 1997-04-15 ES ES97106127T patent/ES2179236T3/es not_active Expired - Lifetime
- 1997-04-15 EP EP02004931A patent/EP1211409A1/de not_active Withdrawn
- 1997-06-02 MX MX9704054A patent/MX9704054A/es not_active IP Right Cessation
- 1997-06-24 KR KR1019970026818A patent/KR100472870B1/ko not_active IP Right Cessation
- 1997-06-26 JP JP16984697A patent/JP3893192B2/ja not_active Expired - Fee Related
- 1997-06-27 US US08/884,521 patent/US5826554A/en not_active Expired - Lifetime
- 1997-06-27 BR BR9703747A patent/BR9703747A/pt not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0280122A2 (de) * | 1987-02-24 | 1988-08-31 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Sauganlage für Brennkraftmaschinen |
Also Published As
Publication number | Publication date |
---|---|
ES2179236T3 (es) | 2003-01-16 |
BR9703747A (pt) | 1998-08-11 |
US5826554A (en) | 1998-10-27 |
EP0816668A3 (de) | 1998-04-22 |
EP1211409A1 (de) | 2002-06-05 |
KR980002784A (ko) | 1998-03-30 |
JPH1054314A (ja) | 1998-02-24 |
DE19625768B4 (de) | 2009-04-16 |
JP3893192B2 (ja) | 2007-03-14 |
DE19625768A1 (de) | 1998-01-02 |
DE59708238D1 (de) | 2002-10-24 |
MX9704054A (es) | 1997-12-31 |
EP0816668A2 (de) | 1998-01-07 |
KR100472870B1 (ko) | 2005-05-20 |
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