GB2122683A - Exhaust manifold for multi- cylinder motor-vehicle engines - Google Patents
Exhaust manifold for multi- cylinder motor-vehicle engines Download PDFInfo
- Publication number
- GB2122683A GB2122683A GB08313972A GB8313972A GB2122683A GB 2122683 A GB2122683 A GB 2122683A GB 08313972 A GB08313972 A GB 08313972A GB 8313972 A GB8313972 A GB 8313972A GB 2122683 A GB2122683 A GB 2122683A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collector
- connection sockets
- corrugations
- necked
- pipe
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 8
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 238000013461 design Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- F01N13/08—Other arrangements or adaptations of exhaust conduits
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
-
- 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
- F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
- F01N13/102—Other arrangements or adaptations of exhaust conduits of exhaust manifolds having thermal insulation
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/21—Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Exhaust Silencers (AREA)
Abstract
An exhaust manifold (1) has a plurality of connection sockets (2, 3, 4) and comprises a one-piece pipe of steel plate with local necked out portions (1a, 1b, 1c) welded to the connection sockets. Expansion corrugations (6-13) are directly formed in the wall of the connection sockets and/or the pipe. The manifold may be covered by a heat- and sound- absorbing insulation (14). Coverings (15) of a metal netting, woven mesh or knitted mesh may be formed on the expansion corrugations in order to improve the sound absorption. <IMAGE>
Description
SPECIFICATION
Exhaust collector for multi-cylinder motorvehicle engines
The present invention relates to an exhaust collector which is intended for multi-cylinder motor-vehicle engines and which has a plurality of connection sockets leading to the outlet ports of the cylinder head.
Exhaust manifolds of this type at present consist predominantly of cast iron. They are therefore relatively heavy and expensive.
In addition, experiments have been made with exhaust manifolds of shell construction, in which pre-pressed half shells have been welded together at their longitudinal edges. Although these manifolds have been characterized by light weight, this has been at the expense, however, of costly welding seams.
The present invention is based on the realization that in modern motor-vehicle construction the emissions issuing from the engine, in particular the solid-conducted sounds, must be absorbed more effectively than before.
For this purpose it is particularly advantageous to enclose the engine.
Such an enclosure has the result, however, that the heat radiation of the engine can no longer be removed by the relative wind and the air current from the fan. This results in substantially higher temperatures, in particular in the region of the exhaust manifold. The problems of heat expansion are intensified on account of the different heat expansion of the cylinder head on the one hand and the exhaust collector flanged thereon on the other.
On the basis of this realization, the present invention aims to develop an exhaust collector which can meet the considerable thermal demands in the case of enclosed engines and which is characterized by a high degree of expansion absorption while having low production costs. At the same time the collector according to the invention should be able to function with low weight and be suitable for subsequent envelopment for the purpose of heat-and-noiseinsulation, and special steps for noise absorption should also be made possible.
The present invention provides an exhaust collector for a multi-cylinder motor-vehicle engine and which has a plurality of connection sockets for communication with the outlet ports of a cylinder head, wherein the collector is formed as a onepiece pipe of steel plate with local necked-out portions, the said necked-out portions being welded to the connection sockets, and wherein a plurality of expansion corrugations extending generally peripherally are formed on the plate wall of the collector and/or the connection sockets.
Where appropriate the collector and the connection sockets may be surrounded by an insulation for the purpose of heat and sound absorption.
This design according to the invention offers decisive advantages both from the point of view of
manufacture and from the point of view of
application. By virtue of the fact that the collector
together with its necked out portions is formed from a one-piece pipe, the long welding seams in
the longitudinal direction required in the case of shell structures become unnecessary, and
substantial advantages in terms of weight are
achieved over the cast-iron manifolds. In
particular, however, it becomes possible for
expansion corrugations to be integrated directly
on the pipe wall of the collector or its connection
sockets. Thus no separate additional components
in the form of bellows or the like are required, and
complicated assembly procedures may likewise be
dispensed with.In addition, the integrated
expansion corrugations are characterized by a low
space requirement in both the axial and the radial
direction. They may therefore be disposed even on
small pipe sections and there produce absolute
expansion compensation. Finally, on account of
the integrated expansion corrugations the
collector according to the invention is suitable for
the application of an outer insulation, since no
connection flanges are to be bridged. An
insulation of this type reduces the heat radiation of
the collector in the engine space, and this is
particularly important on account of the covering.
Finally, the pipe design produces a lower heating
constant, which results in catalysts connected at
the outlet end responding more rapidly, and this is
particularly important in city traffic.
Furthermore, the exhaust collector according to
the invention may be provided with a covering of a
metal netting, woven mesh or knitted mesh
following the contour of the corrugations at least
along the corrugation flanks to be formed on or,
during the formation of the expansion
corrugations, to be formed together with at least
part of the expansion corrugations which may be
provided individually or, in the case of a plurality
thereof, may be arranged in succession. These
measures have the effect that the covering
surrounds the corrugated pipe in a net-like and
resilient manner, the knitted mesh, netting or
woven mesh being subjected to relatively little
stress during the formation of the corrugated pipe
or during the application of the covering.These
wide degrees of freedon of the covering, which
already come into effect during manufacture, also
have a positive effect in the relative movements
occurring during operation, because there is no
risk of removal from the corrugated pipe part or
the expansion corrugations and there is a large
contact surface with the corrugated pipe during
continuous operation, since the thermal expansion
procedures cannot be particularly effective. This
jacket has practically no adverse effect upon heat
transfer from the corrugated pipe, so that heat
accumulation cannot occur between the jacket
and the corrugated pipe.In addition, the jacket
results in a dissipation of vibration energy
occurring inside the knitted mesh, netting or
woven mesh on account of reciprocal friction of
the wires, threads or fibres forming the jacket, the
proportion of the material to be used being relatively slight. If the jacket together with the plain-ended pipe representing the beginning of manufacture is shaped in a tool, a network of reinforcing beads, which effectively reduces the sound radiation from the surface of the sheet metal, is finally formed in the sheet wall.
The expansion corrugations are advantageously formed only on the collector, since, as has been shown, in this position there is optimum relief of the gasket between the connection sockets and the cylinder head with respect to the different heat expansions of the two connection members.
Distortion of the exhaust collector and the risk of local leakage in the region of the gaskets are thus eliminated in an optimum manner. In addition, reinforcements and ribbing of the exhaust manifold and an expensive design of the gasket may be avoided.
It is however, also possible to form expansion corrugations on the connection sockets as well. In this way, the bending and shearing forces which occur are distributed relatively uniformly over the individual sections of the collector according to the invention.
The collector and the connection sockets advantageously consist of austenitic steel plate with a wall thickness of from 0.5 to 1.5 mm, more preferably from 0.6 to 1.0 mm. In this way the pipe may be worked relatively easily into the desired shape and an adequate elasticity of the expansion corrugations is attained.
With respect to the design of the connection sockets it is preferred that they be flanged over at their free ends and be provided with a loose flange in each case. Other possibilities of connection are, of course, also possible.
In order to produce the exhaust collector according to the invention it has been found to be particularly advantageous to start with a steel pipe, to neck out the pipe locally at those places where the connection sockets are subsequently to open, then to insert the pipe and/or the connection sockets into a mould and to press them with internal overpressure and axial compression against the inner contour of the mould provided with integrally moulded corrugations, and then to trim the necked out portions and weld them to a connection socket in each case. In this case, it is possible to form the necked out portions and the expansion corrugations in the collector in one operation.
In order to produce the expansion corrugations on the connection sockets it is particularly advantageous to start with a continuous pipe of steel plate which is pressed into the corrugation mould in the manner described above, but then to separate the pipe into the individual connection sockets between the expansion corrugations and to weld the connection sockets onto the necked out portions of the collector.
Finally, an insulation is fitted to the outside of the collector and the connection sockets. In the simplest case this is in the form of insulating mats which are clipped onto the sheet-metal pipe and where appropriate are covered on the outside with
metal shells.
The invention will be further described, by way
of example only, with reference to the
accompanying drawings, which is a perspective view of an exhaust collector according to the
invention, both possibilities of positioning the expansion corrugations, namely both on the collector and on the connection sockets, being illustrated.
In the drawing is shown an exhaust collector 1 in which a plurality of necked-out portions 1 a, 1 b and 1 c arranged in succession are moulded by internal overpressure while using an appropriate external mould. The ends of the necked-out portions have an approximately circular crosssection, so that they are in alignment with associated connection sockets 2, 3 and 4 and after the necked-out portions have been cut open may be welded to the connection sockets by a simple butt weld. The last connection socket 5 is formed by the appropriately bent end of the collector itself.
As is evident, the collector is formed by a onepiece pipe, preferably of steel plate, and it has individual corrugations 6, 7, 8 and 9 which are formed directly on the wall of the pipe and which are curved radially towards the outside starting from the periphery of the pipe. The corrugations may be continuous in the peripheral direction, but instead, in particular where the collector bends, partial corrugations may be provided which extend over only part of the periphery.
In the embodiment shown the expansion corrugations are arranged downstream of each opening of a connection socket 2, 3, 4 and 5, in order to ensure a substantial expansion compensation with respect to all the attachment points of the exhaust manifold on the cylinder head. The drawing illustrates only one corrugation in each case. A plurality of corrugations arranged side-by-side may also of course be provided.
It is also particularly advantageous for one or more expansion corrugations to be provided on the connection sockets, as indicated in the drawing by the reference numerals 10, 1 1, 12 and 13. In this way, buckling of the material at the seal between the cylinder head and the exhaust manifold may be counteracted and sealing is also ensured with simple flat gasket rings.
The ends of the connection sockets are flanged over in each case and comprise a loose flange for assembly to the cylinder head.
As is shown in particular in the case of the corrugation 6, the expansion corrugations may be provided with a covering of a metal netting, woven mesh or knitted mesh 1 5 in order to provide an additional insulation of rattling noises at these resilient and vibration-absorbing areas, the covering 15 not obstructing the heat dissipation, and furthermore a particularly high degree of insulation is provided by the internal friction of the wires or threads forming the covering. The use of material is particularly modest and, in addition, the connection means for the manifold are not influenced or adversely affected in this way.
A jacket 14 of the collector and its connection sockets for heat-and sound-insulation is made of an insulating material which is laid on the pipe wall in the form of a tape or shell and is secured thereto by a sheet metal covering, for example in the form of half shells.
The exhaust collector may be produced by a cylindrical tube of high-quality steel plate first being necked-out at those places where the connection sockets will subsequently be welded, while it is bent round accordingly at its rear end in order to form the last connection socket. For the purpose of necking-out the pipe is inserted into a mould which consists of two halves and in the inner contour of which the necked-out portions are moulded. The pipe is forced into this mould by internal overpressure and where appropriate by axial compression. The necked-out portions 1 a, 1 b and 1 c are then trimmed in order that they may be welded to the corresponding connection sockets 2, 3 and 4. These connnection sockets are produced from an initially continuous tube of steel plate while this is inserted into a mould, the inner contour of which the expansion corrugations are moulded in the quantity desired. The expansion corrugations are then formed by internal overpressure and at the same time axial compression, and it is also possible of course, contrary to the illustration in the drawing, for a plurality of expansion corrugations, instead of one, to be arranged in succession in each case. The connection sockets are then welded to the exhaust collector and together therewith covered with insulation.
Claims (13)
1. An exhaust collector for a multi-cylinder motor-vehicle engine and which has a plurality of connection sockets for communication with the outlet ports of a cylinder head, wherein the collector is formed as a one-piece pipe of steel plate with local necked-out portions, the said necked-out portions being welded to the connection sockets, and wherein a plurality of expansion corrugations extending generally peripherally are formed on the plate wall of the collector and/or the connection sockets.
2. An exhaust collector as claimed in claim 1, wherein the collector and the connection sockets are surrounded by an insulation for the purpose of heat- and sound-absorption.
3. An exhaust collector as claimed in Claim 1 or 2, wherein a covering of a metal netting, woven mesh or knitted mesh following the contour of the corrugations at least along the corrugation flanks is formed on or, during the formation of the corrugations, is formed together with at least part of the corrugations.
4. An exhaust collector as claimed in any of
Claims 1 to 3, wherein the corrugations are formed only on the collector.
5. An exhaust collector as claimed in any of
Claims 1 to 3, wherein at least one expansion corrugation is formed on the connection sockets.
6. An exhaust collector as claimed in any of
Claims 1 to 5, wherein the collector and the connection sockets consist of austenitic steel plate with a wall thickness of from 0.5 to 1.5 mm.
7. An exhaust collector as claimed in Claim 6, wherein the said austenitic steel plate has a wall thickness of from 0.6 to 1.0 mm.
8. An exhaust collector as claimed in any of
Claims 1 to 7, wherein the connection sockets are flanged over at their free ends and are provided with loose flanges.
9. An exhaust collector according to Claim 1, substantially as herein described with reference to, and as shown in, the accompanying drawing.
10 A method of producing an exhaust collector according to Claim 1, wherein a pipe of steel plate is necked-out locally at those places where the connection sockets are subsequently to open, the pipe and/or the connection sockets are inserted into a mould and are pressed with internal overpressure and axial compression against the inner contour of the said mould provided with integrally moulded corrugations, and then the necked-out portions are trimmed and welded to a connection socket in each case.
11. A method of producing an exhaust collector according to Claim 1 or 5, wherein a pipe of steel plate is necked out locally at these places where the connection sockets are subsequently to open and then the necked-out portions are trimmed, an additional pipe of steel plate is inserted into a mould and is pressed with internal overpressure and axial compression against the inner contour of the said mould provided with integrally moulded corrugations, and is then separated into the individual connection sockets between the expansion corrugations which are welded onto the necked-out portions of the first pipe.
12. A method as claimed in Claim 10, wherein the necked-out portions and the expansion corrugations are formed cold in one separation.
13. A method according to Claim 10 or 1 1 of producing an exhaust collector, substantially as herein described with reference to the accompanying drawings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823219360 DE3219360C2 (en) | 1982-05-22 | 1982-05-22 | Flexible line element for pulsating flows with a corrugated pipe |
| DE3235332 | 1982-09-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8313972D0 GB8313972D0 (en) | 1983-06-29 |
| GB2122683A true GB2122683A (en) | 1984-01-18 |
| GB2122683B GB2122683B (en) | 1985-07-31 |
Family
ID=25801968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08313972A Expired GB2122683B (en) | 1982-05-22 | 1983-05-20 | Exhaust manifold for multi-cylinder motor-vehicle engines |
Country Status (4)
| Country | Link |
|---|---|
| FR (1) | FR2527263B1 (en) |
| GB (1) | GB2122683B (en) |
| IT (1) | IT1221485B (en) |
| SE (1) | SE455330B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689954A (en) * | 1995-04-13 | 1997-11-25 | Mercedes-Benz A.G. | Exhaust gas manifold for an internal combustion engine and method of making such exhaust gas manifold |
| EP1245802A1 (en) * | 2001-03-28 | 2002-10-02 | Calsonic Kansei Corporation | Double-walled exhaust manifold |
| DE102010026957A1 (en) * | 2010-07-12 | 2012-01-12 | J. Eberspächer GmbH & Co. KG | Exhaust system for loaded combustion engine of motor car, has two collection tube made of ferrite steel, and connecting part made of duplex steel and comprising channels, where one of channels is connected at flange made of austenitic steel |
| US12055081B2 (en) | 2018-05-15 | 2024-08-06 | Cummins Inc. | Dual-wall integrated flange joint |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3326259A1 (en) * | 1983-07-21 | 1985-02-07 | Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim | Exhaust pipe |
| DE3427998A1 (en) * | 1984-07-28 | 1986-01-30 | Witzenmann GmbH, Metallschlauch-Fabrik Pforzheim, 7530 Pforzheim | EXHAUST PIPE FOR MOTOR VEHICLE ENGINES |
| JPH0543227Y2 (en) * | 1987-12-21 | 1993-10-29 | ||
| EP0623739B1 (en) * | 1993-05-03 | 1995-12-20 | Volkswagen Aktiengesellschaft | Manifold |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB571022A (en) * | 1942-06-11 | 1945-08-02 | Chicago Metal Hose Corp | Improvements relating to flexible pipe connections or conduits |
| GB1247988A (en) * | 1968-08-01 | 1971-09-29 | Fiat Spa | Resonant induction manifold for internal combustion reciprocating engines |
| GB1526963A (en) * | 1974-11-26 | 1978-10-04 | Fuji Heavy Ind Ltd | Exhaust systems for internal combustion engines |
| US4184329A (en) * | 1976-10-14 | 1980-01-22 | Aktiengesellschaft Adolph Saurer | Device for connecting an exhaust manifold through the cylinder head of a multi-cylinder internal combustion engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH296442A (en) * | 1949-01-27 | 1954-02-15 | Buechi Alfred | Exhaust gas discharge device for multi-cylinder internal combustion engines with exhaust gas turbine charging. |
| US3380246A (en) * | 1966-01-03 | 1968-04-30 | Gen Electric | Exhaust manifold system for internal combustion engines |
| US3374775A (en) * | 1966-02-14 | 1968-03-26 | Hunt Foods And Ind Inc | Diesel engine intake and exhaust system |
| IT1188884B (en) * | 1979-09-06 | 1988-01-28 | Zeuna Staerker Kg | COLLECTOR IN PARTICULAR FOR A SIX CYLINDER ENGINE IN LINE |
-
1983
- 1983-05-17 FR FR8308122A patent/FR2527263B1/en not_active Expired
- 1983-05-19 SE SE8302825A patent/SE455330B/en not_active IP Right Cessation
- 1983-05-19 IT IT48333/83A patent/IT1221485B/en active
- 1983-05-20 GB GB08313972A patent/GB2122683B/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB571022A (en) * | 1942-06-11 | 1945-08-02 | Chicago Metal Hose Corp | Improvements relating to flexible pipe connections or conduits |
| GB1247988A (en) * | 1968-08-01 | 1971-09-29 | Fiat Spa | Resonant induction manifold for internal combustion reciprocating engines |
| GB1526963A (en) * | 1974-11-26 | 1978-10-04 | Fuji Heavy Ind Ltd | Exhaust systems for internal combustion engines |
| US4184329A (en) * | 1976-10-14 | 1980-01-22 | Aktiengesellschaft Adolph Saurer | Device for connecting an exhaust manifold through the cylinder head of a multi-cylinder internal combustion engine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5689954A (en) * | 1995-04-13 | 1997-11-25 | Mercedes-Benz A.G. | Exhaust gas manifold for an internal combustion engine and method of making such exhaust gas manifold |
| EP1245802A1 (en) * | 2001-03-28 | 2002-10-02 | Calsonic Kansei Corporation | Double-walled exhaust manifold |
| US6625979B2 (en) | 2001-03-28 | 2003-09-30 | Calsonic Kansei Corporation | Double pipe exhaust manifold |
| DE102010026957A1 (en) * | 2010-07-12 | 2012-01-12 | J. Eberspächer GmbH & Co. KG | Exhaust system for loaded combustion engine of motor car, has two collection tube made of ferrite steel, and connecting part made of duplex steel and comprising channels, where one of channels is connected at flange made of austenitic steel |
| DE102010026957B4 (en) * | 2010-07-12 | 2020-08-06 | Eberspächer Exhaust Technology GmbH & Co. KG | Exhaust system |
| US12055081B2 (en) | 2018-05-15 | 2024-08-06 | Cummins Inc. | Dual-wall integrated flange joint |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2122683B (en) | 1985-07-31 |
| SE8302825D0 (en) | 1983-05-19 |
| FR2527263A1 (en) | 1983-11-25 |
| IT1221485B (en) | 1990-07-06 |
| IT8348333A0 (en) | 1983-05-19 |
| FR2527263B1 (en) | 1985-06-21 |
| SE455330B (en) | 1988-07-04 |
| GB8313972D0 (en) | 1983-06-29 |
| SE8302825L (en) | 1983-11-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |