DE2660452C2 - Internal combustion engine - Google Patents

Internal combustion engine

Info

Publication number
DE2660452C2
DE2660452C2 DE19762660452 DE2660452A DE2660452C2 DE 2660452 C2 DE2660452 C2 DE 2660452C2 DE 19762660452 DE19762660452 DE 19762660452 DE 2660452 A DE2660452 A DE 2660452A DE 2660452 C2 DE2660452 C2 DE 2660452C2
Authority
DE
Germany
Prior art keywords
exhaust
combustion engine
internal combustion
pipe
cylinder head
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
Application number
DE19762660452
Other languages
German (de)
Inventor
Shinichi Kamifukuoka Saitama Shimada
Shuichi Yamazaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP5407775U external-priority patent/JPS5228010Y2/ja
Priority claimed from JP5510175U external-priority patent/JPS5230403Y2/ja
Priority claimed from JP5685675U external-priority patent/JPS5232805Y2/ja
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority claimed from DE2616028A external-priority patent/DE2616028C2/en
Application granted granted Critical
Publication of DE2660452C2 publication Critical patent/DE2660452C2/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F01N13/141—Double-walled exhaust pipes or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F02F1/4271—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels with an exhaust liner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • F02F2001/4278—Exhaust collectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft eine Brennkraftmaschine nach dem Oberbegriff des Patentanspruchs.The invention relates to an internal combustion engine according to the preamble of the patent claim.

Bei einer nach der DE-OS 23 23 793 bekannten Brennkraftmaschine dieser Art ist der Raum zwischen den Wänden des Auspuffinnenrohrs leer, und an den Halteflansch des Auspuffinnenrohrs ist ein massives Rohr eines Auspuffsystems mit einem Flansch angesetzt. In an internal combustion engine of this type known from DE-OS 23 23 793, the space between the walls of the inner exhaust pipe are empty, and a solid one is attached to the retaining flange of the inner exhaust pipe Pipe of an exhaust system attached with a flange.

Bei einer nach der US-PS 16 55 149 bekannten Brennkraftmaschine ist der Auspuffkanal im Zylinderkopf mit einem Blechmantel unter Zwischenfügung einer Asbestschicht ausgekleidetIn an internal combustion engine known from US Pat. No. 16 55 149, the exhaust duct is in the cylinder head lined with a sheet metal jacket with an asbestos layer in between

Bei einer nach der L)EPS 4 27 567 bekannten Brennkraftmaschine ist der Auspü."kanal im Zylinderkopf mit einem Blech unter Zwischenfügung eines Drahtgeflechts ausgekleidetIn an internal combustion engine known from L) EPS 4 27 567, the exhaust duct is in the cylinder head lined with a sheet metal with the interposition of a wire mesh

Aufgabe der Erfindung ist es, bei einer Brennkraftmaschine nach dem Oberbegriff das Abgas nach dem Austritt aus dem Austrittsventil möglichst wenig abkühlen zu lassen.The object of the invention is, in an internal combustion engine according to the preamble, the exhaust gas according to the Let the outlet from the outlet valve cool down as little as possible.

Dabei ist zu berücksichtigen, daß eine Abkühlung erfolgt, wenn das Abgas in unmittelbarem Kontakt mit dem gekühlten Zylinderkopf und dem daran angeschlossenen und somit auch (und überdies durch die Umgebung) abgekühlten Auspuffsystems trittIt should be noted that cooling takes place when the exhaust gas is in direct contact with the cooled cylinder head and the connected and thus also (and moreover through the Environment) cooled exhaust system occurs

Diese Aufgabe wird bei einer gattungsgemäßen Einrichtung durch die kennzeichnenden Merkmale des Patentanspruchs gelöstThis task is achieved in a generic device by the characterizing features of Claim solved

Durch das wärmeisolierende Material wird eine Abkühlung des Abgases im Auspuffinnenrohr vermieden und durch die Verbindung des Auspuffinnenrohrs mit einem in dem Auspuffsystem angeordneten Auspuffrohr auch eine Abkühlung des Abgases beim Übergang zum Auspuffsystem und im Auspuffsystem.The heat-insulating material prevents the exhaust gas from cooling down in the inner exhaust pipe and by connecting the exhaust inner pipe to one disposed in the exhaust system The exhaust pipe also cools the exhaust gas when it passes through the exhaust system and in the exhaust system.

Ein Ausfuhrungsbeispiel der Erfindung wird im folgenden anhand der Figur beschrieben, die einen Querschnitt der wichtigsten Teile einer Brennkraftmaschine nach der Erfindung zeigtAn exemplary embodiment of the invention is described below with reference to the figure, which has a Shows cross-section of the most important parts of an internal combustion engine according to the invention

In der Figur ist eine Brennkraftmaschine mit einem Zylinderblock 11, einem Zylinder 12 und einem Kolben 13 dargestellt, die eine Brennkammer 14 eini-;hließen. Eine Austrittsventilanordnung 15 umfaßt ein Tellerventil 16 mit einem Ventilschaft 17 und einem VentiltellerThe figure shows an internal combustion engine with a cylinder block 11, a cylinder 12 and a piston 13, which include a combustion chamber 14. An exit valve assembly 15 includes a poppet valve 16 having a valve stem 17 and a valve disk

,„ 18. Der Ventilteller 18 steht einem stationären Ventilsitz 20 gegenüber. Ein Auspuffkanal 21 ist in dem wassergekühlten Zylinderkopf 12 ausgebildet und verläuft von dem Ventilsitz 20 zu einem Austritt 22., "18. The valve disk 18 is a stationary valve seat 20 opposite. An exhaust passage 21 is formed in the water-cooled cylinder head 12 and runs from the valve seat 20 to an outlet 22.

Ein dünnwandiges Auspuffinnenrohr 24 aus wärme-A thin-walled exhaust inner pipe 24 made of heat

,5 beständigem Material ist in dem Auspuffkanal 21 mit Abstand zu dessen Wand angeordnet Es hat eine Eintrittsöffnung 25, die auf seiner einen Seite angeordnet ist und Abgase aus der Brennkammer 14 aufnimmt wenn das Austrittsventil 16 geöffnet ist Ferner hat es eine Austrittsöffnung 26. Ein Halteflansch 27 ist an dem Auspuffinnenrohr 24 nahe dem Austritt 26 vorgesehen, und dieser Halteflansch 27 berührt einen Flansch 30, der am Eintritt eines Auspuffrohrs 31 vorgesehen ist, welches zu einem Auspuffsystem 32 führt Die Flansche 27 und 30 sind mit t:ner nicht dargestellten Vorrichtung üblicher Art zusammengehalten, die auch das Auspuffsystem 32 am Zylinderkopf 12 hält. Der Flansch 27 bildet einen Verschluß des stromabwärtigen Endes des rohrförmigen Raums zwischen dem Auspuffinnenrohr, 5 resistant material is arranged in the exhaust duct 21 at a distance from the wall thereof Inlet opening 25, which is arranged on one side and receives exhaust gases from the combustion chamber 14 when the outlet valve 16 is open, it also has an outlet opening 26. A retaining flange 27 is on the Exhaust inner pipe 24 is provided near the outlet 26, and this retaining flange 27 contacts a flange 30 which is provided at the inlet of an exhaust pipe 31 which leads to an exhaust system 32 The flanges 27 and 30 are with t: ner device, not shown conventional type held together, which also holds the exhaust system 32 on the cylinder head 12. The flange 27 forms a closure of the downstream end of the tubular space between the exhaust inner pipe

jo 24 und der Wand des Auspuffkanals 21, so daß eine Rückströmung von Abgasen in diesen Raum hinein nicht möglich ist Dadurch wird dieser Raum beim Betrieb der Brennkraftmaschine mit einer wärmeisolierenden Schicht weitgehend ruhiger Abgase ausgefüllt,jo 24 and the wall of the exhaust duct 21, so that a Return flow of exhaust gases into this space is not possible Operation of the internal combustion engine filled with a heat-insulating layer of largely calm exhaust gases,

y, die am stromaufwärtigen Ende des Auspuffinnenrohrs 24 in diesen Raum eintreten. Diese wärmeisolierende Schicht verringert die Wärmeverjoste vom Auspuffinnenrohr 24 zu der Wand des Auspuffkanals 21.
Das Auspuffinnenrohr 24 hat einen vorderen Abschnitt 34, in dem eine Öffnung 35 vorgesehen jst, durch die der Ventilschaft 17 hindurchgeführt ist y entering this space at the upstream end of the inner exhaust pipe 24. This heat-insulating layer reduces the heat build-up from the exhaust inner pipe 24 to the wall of the exhaust duct 21.
The inner exhaust pipe 24 has a front section 34 in which an opening 35 is provided through which the valve stem 17 is passed

Das Auspuffinnenrohr 24 ist mit einer es umgebenden Metallhülse 43 versehen, die einen Mantel aus wärmeisolierendem Material 41 enthält. Ein Teil 44 der Hülse 43 umgibt den vorderen Abschnitt 34 des Auspuffinnenrohrs 24 und enthält gleichfalls wärmeisolierendes Materiai 41. Das Auspuffinnenrohr 24 und auch die Hülse 43 sind mit Abstand zur Wand des Auspuffkanals 21 angeordnet Somit ist praktisch das gesamte Auspuffinnenrohr 24 von wärmeisolierendem Material 41 umgeben, ausgenommen der Bereich der öffnung 35.The inner exhaust pipe 24 is provided with a surrounding metal sleeve 43 which has a jacket heat insulating material 41 contains. A part 44 of the sleeve 43 surrounds the front portion 34 of the Exhaust inner pipe 24 and also contains heat-insulating material 41. The exhaust inner pipe 24 and The sleeve 43 are also arranged at a distance from the wall of the exhaust duct 21 entire inner exhaust pipe 24 surrounded by heat insulating material 41, with the exception of the area of opening 35.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (1)

Patentanspruch:Claim: Brennkraftmaschine mit einem von einem Austrittsventil ausgehenden Auspuffkanal in einem Zylinderkopf und einem an den Zylinderkopf angeschlossenen Auspuffsystem, bei dem innerhalb des Auspuffkanals in Abstand ein doppelwandiges Auspuffinnenrohr angeordnet ist, nahe dessen Austrittsende ein Halteflansch vorgesehen ist, dadurch gekennzeichnet, daß der Raum zwischen den Wänden des Auspuffinnenrohrs (24) mit wärmeisolierendem Material (41) gefüllt ist und daß der Halteflansch (27) mit einem Flansch (30) an einem in dem Auspuffsystem (32) angeordneten Auspuffrohr (31) verbunden istInternal combustion engine with an exhaust duct emanating from an outlet valve in one Cylinder head and an exhaust system connected to the cylinder head, in which within of the exhaust duct, a double-walled inner exhaust pipe is arranged at a distance, close to it A retaining flange is provided at the outlet end, characterized in that the space between the walls of the inner exhaust pipe (24) is filled with heat-insulating material (41) and that the retaining flange (27) is arranged with a flange (30) on one in the exhaust system (32) Exhaust pipe (31) is connected
DE19762660452 1975-04-22 1976-04-12 Internal combustion engine Expired DE2660452C2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP5407775U JPS5228010Y2 (en) 1975-04-22 1975-04-22
JP5510175U JPS5230403Y2 (en) 1975-04-24 1975-04-24
JP5685675U JPS5232805Y2 (en) 1975-04-28 1975-04-28
DE2616028A DE2616028C2 (en) 1975-04-22 1976-04-12 Internal combustion engine with an exhaust duct emanating from an outlet valve

Publications (1)

Publication Number Publication Date
DE2660452C2 true DE2660452C2 (en) 1984-03-22

Family

ID=27432097

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19762660451 Expired DE2660451C2 (en) 1975-04-22 1976-04-12 Engine design for pollution reduction
DE19762660452 Expired DE2660452C2 (en) 1975-04-22 1976-04-12 Internal combustion engine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19762660451 Expired DE2660451C2 (en) 1975-04-22 1976-04-12 Engine design for pollution reduction

Country Status (1)

Country Link
DE (2) DE2660451C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020048883A1 (en) * 2018-09-06 2020-03-12 Man Truck & Bus Se Cylinder head for an internal combustion engine and method for the production thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4209599C2 (en) * 1992-03-25 1994-07-14 Daimler Benz Ag Exhaust port arranged in the cylinder head of an internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE427567C (en) * 1926-04-08 Maschf Augsburg Nuernberg Ag Internal combustion engine with an insulated combustion chamber
US1655149A (en) * 1928-01-03 Internal combustion engine
DE2323793A1 (en) * 1973-05-11 1974-11-28 Kloeckner Humboldt Deutz Ag OUTLET AND / OR INLET CHANNEL OF A CYLINDER HEAD FOR AIR-COOLED PISTON ENGINE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3579981A (en) * 1970-05-06 1971-05-25 Chrysler Corp Anti-pollution exhaust valve combination with fluidic control and valve cooling features

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE427567C (en) * 1926-04-08 Maschf Augsburg Nuernberg Ag Internal combustion engine with an insulated combustion chamber
US1655149A (en) * 1928-01-03 Internal combustion engine
DE2323793A1 (en) * 1973-05-11 1974-11-28 Kloeckner Humboldt Deutz Ag OUTLET AND / OR INLET CHANNEL OF A CYLINDER HEAD FOR AIR-COOLED PISTON ENGINE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020048883A1 (en) * 2018-09-06 2020-03-12 Man Truck & Bus Se Cylinder head for an internal combustion engine and method for the production thereof
US11835013B2 (en) 2018-09-06 2023-12-05 Man Truck & Bus Se Cylinder head for an internal combustion engine and method for the production thereof

Also Published As

Publication number Publication date
DE2660451C2 (en) 1982-09-16

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