EP0410132A1 - Canal de courant - Google Patents
Canal de courant Download PDFInfo
- Publication number
- EP0410132A1 EP0410132A1 EP90111537A EP90111537A EP0410132A1 EP 0410132 A1 EP0410132 A1 EP 0410132A1 EP 90111537 A EP90111537 A EP 90111537A EP 90111537 A EP90111537 A EP 90111537A EP 0410132 A1 EP0410132 A1 EP 0410132A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flow
- duct
- cross
- intake
- channel
- 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
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
- F02M35/104—Intake manifolds
- F02M35/108—Intake manifolds with primary and secondary intake passages
-
- 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
- F02M35/10072—Intake runners
-
- 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
- F02M35/10098—Straight ducts
-
- 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
- F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
-
- 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
- F02M35/108—Intake manifolds with primary and secondary intake passages
- F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
Definitions
- the invention relates to a flow channel according to the preamble of claim 1.
- the object of the invention is to design an intake duct for an internal combustion engine in such a way that the flow velocity of the gas stream takes into account the resistance caused by the inlet valve in the direction of better internal combustion engine operating properties.
- the main advantages achieved with the invention are the fact that the gas flow in the two duct sections of the intake manifold and the cylinder head has an optimized flow rate profile, as a result of which the gas flow is accelerated up to the cross-sectional transition area and then decelerated.
- the latter causes a reduction in the flow resistance, which improves the delivery rate of the internal combustion engine. This in turn increases performance and reduces consumption.
- the internal combustion engine 1 comprises an intake system 2 and a cylinder head 3 in the area shown.
- the intake system 2 is provided at 4 with a collector (not shown in more detail) and connects to the cylinder head 3 with a fastening flange 5.
- Extending between intake system 2 and cylinder head 3 is an intake channel 6, which is divided into a first channel section 7 - length approx. 100 to 120 mm - in intake system 2 and a second channel section 8 in cylinder head 3.
- a valve 9, actuated by a camshaft, not shown, is provided at the end of the intake duct 6 and has a valve stem 10 and a valve disk 11; the valve plate works together with a valve seat 12.
- the valve stem 10 is axially movable in a valve guide 13, which in turn rests in a bore 14 in the cylinder head 3.
- the valve stem 10 is exposed locally, specifically in the region of a bend 15 of the channel section 8, to a gas flow which is controlled by the valve 9. If the valve 9 is open, the gas flow enters a combustion chamber 16.
- the intake duct 6 with a circular cross-section has the following flow profile: over a substantial part of the length of the intake duct 6, its cross-section tapers evenly conically, namely downstream - flow direction S - up to a cross-sectional transition area 17 which - seen in the flow direction S - is relatively short in front of the valve stem 10 lies.
- the intake duct 6 After the cross-sectional transition region 17, the intake duct 6 also widens uniformly and conically.
- the cross-sectional taper is defined by Q1> Q2 and the cross-sectional expansion by Q3 ⁇ Q4.
- the cross-sectional expansion Q1> Q2 is between 18 and 24%.
- the course of the flow rate of the gas flow in the intake duct 6 is shown.
- the speed in m / s is plotted on the ordinate and the length of the intake duct in mm on the abscissa.
- the solid line 18 represents the continuous, kink-free acceleration B K up to the cross-sectional transition region 17 and then the continuous deceleration V K of the gas flow.
- the dash-dotted line 19 shows the course of the flow velocity of the gas stream according to the prior art. This comparison makes it clear that the line 19 has a kink 20 in the flow profile and the gas flow is accelerated until just before the narrowest cross section in the region of the valve seat ring.
- the hatched triangle 21 represents the reduction in the flow resistance; at 22 the gas flow has valve gap speed.
- suction channels 23, 24 running parallel to one another. Both suction channels 23, 24 are substantially separate from one another and conical over their entire length. In addition, they have flow profiles of the same principle.
- This version is suitable for an internal combustion engine with at least two intake valves per cylinder, which are arranged in the cylinder head and actuated by, for example, two camshafts.
- the intake duct 25 for an internal combustion engine with two intake valves per cylinder.
- the intake duct 25 tends to have a flow profile as shown in FIG. 2. However, viewed in the direction of flow S, it is initially a single channel 26, which is then divided by a partition 27 into two separate channel regions 28, 29, which have the shape of trousers and lead to the inlet valves.
- the partition wall 274 begins downstream - flow direction S - in front of the valve stem 10 and is designed as a type of flow body with a symmetrically streamlined profile. It begins with a rounded tip SK S opposite to the gas flow and expands continuously on both sides Cross center plane CC to a maximum width SK max , from where the profile tapers to a reduced width SK red .
- the flow body in particular the interrelationships between SK max and SK red, can be defined empirically and / or mathematically, taking into account structural conditions and minimal friction and pressure losses.
- cross-sectional transition regions 30, 31 are provided in the duct regions 28, 29 in this intake duct design. The gas flow is accelerated and then decelerated up to the cross-sectional transition areas 30, 31 downstream - flow direction S - relatively short of the valve stem: the latter is achieved by the uniform cross-sectional expansion of the channel areas 28, 29 after these cross-sectional transition areas.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3924544 | 1989-07-25 | ||
DE3924544A DE3924544A1 (de) | 1989-07-25 | 1989-07-25 | Stroemungskanal |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0410132A1 true EP0410132A1 (fr) | 1991-01-30 |
EP0410132B1 EP0410132B1 (fr) | 1993-12-08 |
Family
ID=6385764
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90111537A Expired - Lifetime EP0410132B1 (fr) | 1989-07-25 | 1990-06-19 | Canal de courant |
Country Status (6)
Country | Link |
---|---|
US (1) | US5050566A (fr) |
EP (1) | EP0410132B1 (fr) |
JP (1) | JPH03130528A (fr) |
DE (2) | DE3924544A1 (fr) |
ES (1) | ES2047203T3 (fr) |
RU (1) | RU1796039C (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2931207A1 (fr) * | 2008-05-14 | 2009-11-20 | Renault Sas | Dispositif de transfert de gaz d'admission ou d'echappement |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3940838C1 (fr) * | 1989-12-11 | 1991-06-20 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De | |
US5265568A (en) * | 1991-09-27 | 1993-11-30 | Mazda Motor Corporation | Intake system for internal combustion engine |
JP3517957B2 (ja) * | 1994-06-10 | 2004-04-12 | マツダ株式会社 | エンジンの吸気ポート構造およびその設定方法 |
US7200487B2 (en) * | 2003-06-30 | 2007-04-03 | Westport Power Inc. | System and method for processing an accelerometer signal to assist in combustion quality control in an internal combustion engine |
CA2444163C (fr) * | 2003-10-01 | 2007-01-09 | Westport Research Inc. | Methode et appareil de controle de la qualite de la combustion dans un moteur a combustion interne a gaz |
US7444231B2 (en) * | 2004-11-18 | 2008-10-28 | Westport Power Inc. | Method of mounting an accelerometer on an internal combustion engine and increasing signal-to-noise ratio |
DE102005020228B4 (de) * | 2005-04-30 | 2014-08-14 | Audi Ag | Einlasskanalanordnung in einem Zylinderkopf |
JP4657177B2 (ja) | 2006-08-29 | 2011-03-23 | 本田技研工業株式会社 | 内燃機関 |
DE102019111421A1 (de) * | 2019-05-03 | 2020-11-05 | Man Energy Solutions Se | Ladeluftleitung einer Brennkraftmaschine und Brennkraftmaschine |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1476080B (de) * | Motoren Werke Mannheim AG vorm Benz Abt stat Motorenbau, 6800 Mannheim | Einlaßkanal für Brennkraftmaschinen, insbesondere Dieselmotoren | ||
GB682450A (en) * | 1948-08-06 | 1952-11-12 | Fiat Spa | Inlet conduit for internal combustion engines |
US3945349A (en) * | 1972-09-02 | 1976-03-23 | Elsbett L | Air conveying system, especially in the intake line, for successive cylinders of reciprocable piston internal combustion engines |
DE2122942B2 (de) * | 1970-06-05 | 1980-04-10 | Aktiengesellschaft Adolph Saurer, Arbon (Schweiz) | Zylinderkopf einer Kolbenbrennkraftmaschine mit einem drallerzeugend in eine Einlaßventilkammer einmündenden Einlaßkanal |
DE3508763A1 (de) * | 1984-07-10 | 1986-01-23 | Toyota Jidosha K.K., Toyota, Aichi | Brennkraftmaschine mit mehreren einlassventilen |
US4726341A (en) * | 1985-10-14 | 1988-02-23 | Nissan Motor Co., Ltd. | Induction arrangement for internal combustion engine having multiple inlet valves per cylinder |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB881089A (en) * | 1958-03-25 | 1961-11-01 | Tatra Np | Improvements in inlet ducts for internal combustion engines |
DE1476080A1 (de) * | 1965-01-05 | 1969-11-13 | Motoren Werke Mannheim Ag | Einlasskanal fuer Brennkraftmaschinen,insbesondere Dieselmotoren |
US4069796A (en) * | 1976-09-27 | 1978-01-24 | General Motors Corporation | Engine manifold with air gap insulator carburetor mounting |
US4187823A (en) * | 1978-03-03 | 1980-02-12 | Caterpillar Tractor Co. | High swirl inlet port |
GB1600888A (en) * | 1978-05-31 | 1981-10-21 | Ricardo Consulting Engs Ltd | Inlet ports in ic engines |
GB2056553B (en) * | 1979-08-22 | 1983-04-13 | Ricardo Consulting Engs Ltd | Directed inlet passages in ic engines |
JPS58124019A (ja) * | 1982-01-21 | 1983-07-23 | Toyota Motor Corp | 吸気2弁式内燃機関 |
JPS58150025A (ja) * | 1982-03-03 | 1983-09-06 | Toyota Motor Corp | 内燃機関の吸気通路 |
US4574751A (en) * | 1983-08-19 | 1986-03-11 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Inlet port for internal combustion engine |
SE443836B (sv) * | 1984-05-22 | 1986-03-10 | Saab Scania Ab | Cylinderhuvud for forbrenningsmotor |
JPS6149120A (ja) * | 1984-08-15 | 1986-03-11 | Yamaha Motor Co Ltd | 4行程内燃機関 |
US4719879A (en) * | 1984-10-23 | 1988-01-19 | Honda Giken Kogyo Kabushiki Kaisha | Intake manifold |
JPS61149519A (ja) * | 1984-12-21 | 1986-07-08 | Nissan Motor Co Ltd | 多気筒内燃機関の吸気路装置 |
DE3510226A1 (de) * | 1985-03-21 | 1986-10-02 | Daimler-Benz Ag, 7000 Stuttgart | Einspritzsystem einer brennkraftmaschine |
US4805569A (en) * | 1987-02-13 | 1989-02-21 | Mazda Motor Corporation | Intake system for an engine |
IT1223543B (it) * | 1987-12-18 | 1990-09-19 | Alfa Lancia Ind | Dispositivo di aspirazione per un motore a c.i. pluricilindrico |
-
1989
- 1989-07-25 DE DE3924544A patent/DE3924544A1/de active Granted
-
1990
- 1990-06-19 EP EP90111537A patent/EP0410132B1/fr not_active Expired - Lifetime
- 1990-06-19 ES ES90111537T patent/ES2047203T3/es not_active Expired - Lifetime
- 1990-06-19 DE DE90111537T patent/DE59003768D1/de not_active Expired - Fee Related
- 1990-07-20 US US07/554,896 patent/US5050566A/en not_active Expired - Fee Related
- 1990-07-25 RU SU904830477A patent/RU1796039C/ru active
- 1990-07-25 JP JP2195079A patent/JPH03130528A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1476080B (de) * | Motoren Werke Mannheim AG vorm Benz Abt stat Motorenbau, 6800 Mannheim | Einlaßkanal für Brennkraftmaschinen, insbesondere Dieselmotoren | ||
GB682450A (en) * | 1948-08-06 | 1952-11-12 | Fiat Spa | Inlet conduit for internal combustion engines |
DE2122942B2 (de) * | 1970-06-05 | 1980-04-10 | Aktiengesellschaft Adolph Saurer, Arbon (Schweiz) | Zylinderkopf einer Kolbenbrennkraftmaschine mit einem drallerzeugend in eine Einlaßventilkammer einmündenden Einlaßkanal |
US3945349A (en) * | 1972-09-02 | 1976-03-23 | Elsbett L | Air conveying system, especially in the intake line, for successive cylinders of reciprocable piston internal combustion engines |
DE3508763A1 (de) * | 1984-07-10 | 1986-01-23 | Toyota Jidosha K.K., Toyota, Aichi | Brennkraftmaschine mit mehreren einlassventilen |
US4726341A (en) * | 1985-10-14 | 1988-02-23 | Nissan Motor Co., Ltd. | Induction arrangement for internal combustion engine having multiple inlet valves per cylinder |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2931207A1 (fr) * | 2008-05-14 | 2009-11-20 | Renault Sas | Dispositif de transfert de gaz d'admission ou d'echappement |
Also Published As
Publication number | Publication date |
---|---|
DE59003768D1 (de) | 1994-01-20 |
EP0410132B1 (fr) | 1993-12-08 |
ES2047203T3 (es) | 1994-02-16 |
DE3924544A1 (de) | 1991-02-07 |
DE3924544C2 (fr) | 1991-08-01 |
JPH03130528A (ja) | 1991-06-04 |
US5050566A (en) | 1991-09-24 |
RU1796039C (ru) | 1993-02-15 |
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