GB2091341A - Cooling exhaust manifolds - Google Patents

Cooling exhaust manifolds Download PDF

Info

Publication number
GB2091341A
GB2091341A GB8101843A GB8101843A GB2091341A GB 2091341 A GB2091341 A GB 2091341A GB 8101843 A GB8101843 A GB 8101843A GB 8101843 A GB8101843 A GB 8101843A GB 2091341 A GB2091341 A GB 2091341A
Authority
GB
United Kingdom
Prior art keywords
exhaust
tube
tubes
passes
tortuous passage
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.)
Withdrawn
Application number
GB8101843A
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.)
LINDLEY Ltd H
Original Assignee
LINDLEY Ltd H
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
Application filed by LINDLEY Ltd H filed Critical LINDLEY Ltd H
Priority to GB8101843A priority Critical patent/GB2091341A/en
Publication of GB2091341A publication Critical patent/GB2091341A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • F01N3/043Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids without contact between liquid and exhaust gases
    • F01N3/046Exhaust manifolds with cooling jacket
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Silencers (AREA)

Abstract

An exhaust manifold, particularly suitable for use on a flame-proofed diesel engine for use in explosive or inflammable atmospheres, such as in mines, comprises a housing 16 having at least one exhaust inlet 19, 20, at least one exhaust outlet 25 and a first tortuous passage for exhaust gas, which may be defined by parallel tubes 10, 11, 12 and 13. There is also a second tortuous passage for cooling fluid, for example defined by tubes 30, 31, 32 and 33. The first and second tortuous passages are arranged so that the exhaust gas and cooling fluid flow in opposite directions over at least a portion of the length of the passages to provide good heat exchange. <IMAGE>

Description

SPECIFICATION Exhaust manifolds The invention relates to exhaust manifolds and particularly to exhaust manifolds for use on flame proofed diesel engines for use in explosive or inflammable atmospheres, e.g. in mines.
The invention provides an exhaust manifold comprising a housing having at least one exhaust inlet, at least one exhaust outlet, and a first tortuous passage leading from the exhaust inlet to the exhaust outlet, the housing including a second tortuous passage for cooling fluid, the first and second tortuous passages passing in opposite directions over at least a portion of their length, to obtain good heat exchange between the exhaust gases and the cooling fluid.
There may be several (e.g. two or more) exhaust inlets, a single exhaust outlet, a single inlet for cooling fluid, and a single outlet for cooling fluid.
Preferably the second tortuous passage passes inside the first tortuous passage for a substantial portion of its length.
The second tortuous passage is preferably in communication with a cooling jacket surrounding the first tortuous passage.
The first tortuous passage may comprise four generally cylindrical parallel exhaust tubes arranged in two pairs, one above the other, the tubes being interconnected such that the first tortuous passage extends from the or each exhaust inlet into one of the lower tubes, passes to one end of the said one tube, then passes up into one end of a second tube immediately above the said one tube, then passes to the opposite end of the second tube, then passes across into one end of a third tube, then passes to the opposite end of the third tube, then passes down into one end of the fourth tube, then passes to the opposite end of the fourth tube, and finally emerges through the exhaust outlet.
Each upper tube may be welded to the tube below to form a unit which is separated from the adjacent unit by a partition wall, a crossover passage passing from one unit to the other through an aperture in the partition wall.
The second tortuous passage may comprise four smaller diameter cooling tubes, each tube extending inside one of the four exhaust tubes.
Preferably the ends of the cooling tubes extend through plates blanking off the ends of the exhaust tubes, to communicate with a cooling jacket surrounding the exhaust tubes.
The invention includes an internal combustion engine fitted with an exhaust manifold as defined above.
By way of example, a specific embodiment of exhaust manifold according to the invention will now be described, with reference to the accompanying drawings, in which: Figure 1 is a vertical longitudinal cross-section through an embodiment of exhaust manifold according to the invention, taken on line I-I of Figure 4; Figure 2 is a transverse cross-section on line Il-Il of Figure 1; Figure 3 is a longitudinal cross-section on line Ill-Ill of Figure 4; Figure 4 is a transverse cross-section on line IV-lV of Figure 1; Figure 5 is a transverse cross-section on line V-V of Figure 4; and Figure 6 is a view on arrow VI of Figure 2.
The exhaust manifold shown in the Figures provides a tortuous passage for exhaust gases, the passage being principally defined by four parallel tubes 10, 11, 12, and 13. As best seen in Figure 4.
tubes 10 and 11 are welded together to form an inlet tube and tubes 12 and 13 are welded together to form an outlet unit. The ends of the tubes are blanked off by plates 14 and 1 5 and plate 14 connects the tubes to an outer water jacket 1 6. A partition wall 1 7 separates the inlet unit from the outlet unit, except for an aperture 1 8 through the partition wall as shown in Figure 3.
The manifold has two exhaust inlets 19 and 20 which communicate one with each end of the tube 11, as shown in Figures 1 and 2. When exhaust gases enter through these inlets, they travel to the left hand end of tube 11 as shown in Figure 1, and then pass through an aperture 21 into the left hand end of the tube 10. They then travel along tube 10 to the right hand end as viewed in Figure 1, and they then pass through the crossover passage 23, shown in Figures 2 and 3, into the tube 12. The crossover passage 23 passes through the aperture 1 8 in the partition wall 1 7.
The gases then pass back along tube 12 and down through an aperture 24 shown in Figure 5 to tube 13. Finally they pass along tube 13 and out through the exhaust outlet 25.
The cooling jacket 1 6 defines five chambers, namely a lower chamber 26, two first end chambers 27 and 27a, adjacent to the plate 14, and two second end chambers 28 and 28a which lie adjacent to the plate 1 5. The chambers 27 and 27a are separated by a partition plate lying in the same plane as plate 1 7 which separates chambers 28 and 28a. The chambers 26 and 27 communicate via an opening 29 shown in Figure 1.
Inside each of the tubes 10, 11, 12 and 13 is a smaller diameter cooling tube 30, 31, 32 and 33.
The tubes extend through the plates 14 and 15, interconnecting the chambers 27, 27a, 28 and 28a, except for tube 32, which as best seen in Figure 5, extends through the cooling jacket 16 to the exterior of the exhaust manifold.
The chamber 26 has an inlet 34 for cooling water, and water passing through this inlet 34 travels along the chamber 26 past the exhaust manifold inlets. The water then passes through the opening 29 into the chamber 27. It then passes through the cooling tubes 30 and 31 to the chamber 28, flows around the exterior of the tubes 10 and 1 passes through opening 1 8, and then passes around the exterior of tubes 12 and 13 back to chamber 28a. It then passes through tube 33 to chamber 27a and finally through tube 32 to outlet.
The exhaust manifold forming the subject of this embodiment provides an extremely compact unit which not only incorporates a water jacket to keep the temperature of external surfaces to the low levels required in explosive or inflammable atmospheres, but also combines this function with the efficient cooling of the exhaust gases by means of heat exchange.
The invention is not restricted to the details of the foregoing embodiment.

Claims (10)

1. An exhaust manifold comprising a housing having at least one exhaust inlet, at least one exhaust outlet, and a first tortuous passage leading from the exhaust inlet to the exhaust outlet, the housing including a second tortuous passage for cooling fluid, the first and second tortuous passages passing in opposite directions over at least a portion of their length, to obtain good heat exchange between the exhaust gases and the cooling fluid.
2. An exhaust manifold as claimed in Claim 1, in which there are several exhaust inlets, a single exhaust outlet, a single inlet for cooling fluid, and a single outlet for cooling fluid.
3. An exhaust manifold as claimed in Claim 1 or Claim 2, in which the second tortuous passage passes inside the first tortuous passage for a substantial portion of its length.
4. An exhaust manifold as claimed in any one of the preceding claims, in which the second tortuous passage is in communication with a cooling jacket surrounding the first tortuous passage.
5. An exhaust manifold as claimed in any one of the preceding claims, in which the first tortuous passage comprises four generally cylindrical parallel exhaust tubes arranged in two pairs, one above the other, the tubes being interconnected such that the first tortuous passage extends from the or each exhaust inlet into one of the lower tubes, passes to one end of the said one tube, then passes up into one end of a second tube immediately above the said one tube, then passes to the opposite end of the second tube, then passes across into one end of the third tube, then passes down into one end of the fourth tube, then passes to the opposite end of the fourth tube, and finally emerges through the exhaust outlet.
6. An exhaust manifold as claimed in Claim 5, in which each upper tube is welded to the tube below to form a unit which is separated from the adjacent unit by a partition wall, a crossover passage passing from one unit to the other through an aperture in the partition wall.
7. An exhaust manifold as claimed in Claim 5 or Claim 6, in which the second tortuous passage comprises four smaller diameter cooling tubes, each tube extending inside one of the four exhaust tubes.
8. An exhaust manifold as claimed in Claim 7, in which the ends of the cooling tubes extend through plates blanking off the ends of the exhaust tubes, to communicate with a cooling jacket surrounding the exhaust tubes.
9. An exhaust manifold constructed and arranged substantially as herein described, with reference to the accompanying drawings.
10. An internal combustion engine fitted with an exhaust manifold as claimed in any one of the preceding claims.
GB8101843A 1981-01-21 1981-01-21 Cooling exhaust manifolds Withdrawn GB2091341A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8101843A GB2091341A (en) 1981-01-21 1981-01-21 Cooling exhaust manifolds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8101843A GB2091341A (en) 1981-01-21 1981-01-21 Cooling exhaust manifolds

Publications (1)

Publication Number Publication Date
GB2091341A true GB2091341A (en) 1982-07-28

Family

ID=10519118

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8101843A Withdrawn GB2091341A (en) 1981-01-21 1981-01-21 Cooling exhaust manifolds

Country Status (1)

Country Link
GB (1) GB2091341A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170557A (en) * 1991-05-01 1992-12-15 Benteler Industries, Inc. Method of forming a double wall, air gap exhaust duct component
US5363544A (en) * 1993-05-20 1994-11-15 Benteler Industries, Inc. Multi-stage dual wall hydroforming
US6652337B1 (en) * 2002-03-15 2003-11-25 Brunswick Corporation Exhaust system for a marine propulsion engine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5170557A (en) * 1991-05-01 1992-12-15 Benteler Industries, Inc. Method of forming a double wall, air gap exhaust duct component
US5363544A (en) * 1993-05-20 1994-11-15 Benteler Industries, Inc. Multi-stage dual wall hydroforming
US5475911A (en) * 1993-05-20 1995-12-19 Wells; Gary L. Multi-stage dual wall hydroforming
US6652337B1 (en) * 2002-03-15 2003-11-25 Brunswick Corporation Exhaust system for a marine propulsion engine

Similar Documents

Publication Publication Date Title
US4187678A (en) Marine engine manifold
US4214443A (en) Marine engine manifold
US6062304A (en) Heat exchanger for a water-cooled internal combustion engine
RU94044449A (en) Gas-turbine engine combustion chamber
US3935705A (en) Exhaust manifold for an internal combustion engine
US5265673A (en) Compact manifold for a heat exchanger with multiple identical heating tubes
US4476840A (en) Evaporation chamber for fuel delivery systems
CS198155B2 (en) Motor with the inner combustion
US2941521A (en) Engine head
CS199259B2 (en) Exhaust equipment for internal combustion engines
KR950014567A (en) Intake apparatus of internal combustion engine
GB2091341A (en) Cooling exhaust manifolds
US4249375A (en) Heat exchanger
US4050430A (en) Intake air warming device
US3543509A (en) Engine exhaust system
US4367808A (en) Silencer
US5712455A (en) Dual entry plug muffler
ES2119264T3 (en) EXHAUST GAS SILENCER.
US3990233A (en) Reactor for afterburning of unburned constituents in the exhaust of an internal combustion engine
US4034562A (en) Exhaust reaction apparatus for internal combustion engine having in-line cylinders
US4037407A (en) Exhaust gas purification system for internal combustion engines
US4086762A (en) Exhaust reaction apparatus for multi-cylinder internal combustion engine
US4237840A (en) Universal system for supplying gases to internal combustion engine
EP0079693A2 (en) Method of and apparatus for heating a fuel-air mixture for an internal-combustion engine
US4117672A (en) Exhaust reaction chamber system of engine

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)