WO2000040463A1 - Anti ingestion device - Google Patents
Anti ingestion device Download PDFInfo
- Publication number
- WO2000040463A1 WO2000040463A1 PCT/US1999/030986 US9930986W WO0040463A1 WO 2000040463 A1 WO2000040463 A1 WO 2000040463A1 US 9930986 W US9930986 W US 9930986W WO 0040463 A1 WO0040463 A1 WO 0040463A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- exhaust
- relief valve
- engine
- pressure relief
- air inlet
- Prior art date
Links
- 230000037406 food intake Effects 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- 239000003570 air Substances 0.000 description 18
- 239000002245 particle Substances 0.000 description 18
- 238000002485 combustion reaction Methods 0.000 description 13
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 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
- F01N13/12—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 specially adapted for submerged exhausting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
-
- 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
- F01N13/004—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 specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
-
- 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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
Definitions
- the present invention relates in general to marine engines and more particularly to exhaust systems for marine engines.
- Marine engines typically use water-cooled exhaust systems in which water already circulated through the engines cooling system is utilized to cool exhaust pipes and to lower engine compartment temperatures. To accomplish this, most marine engines use double walled pipes with the exhaust passing through the inside pipe and the spent cooling water flowing in the cavity between the two pipes. At some point in the system the inner wall terminates and the water and exhaust mix and exit the exhaust system together. It is important that the water and exhaust particles exit the system rather than being ingested into the engine to prevent the phenomenon known as hydro-locking. Hydro-locking is essentially the ingestion of water into the cylinders of the engine. Since the water can not be compressed or ignited, the pistons essentially "lock up" and the engine seizes.
- a compression wave is always a positive pressure wave with greater pressure than atmospheric pressure and an expansion wave has lower pressure than atmospheric pressure.
- Compression waves always move particles in the direction of their propagation and expansion waves always move particles in the direction opposite their propagation. Pressure waves and particle waves do not necessarily move at the same speed.
- both the compression waves and expansion waves can effect and contribute to exhaust particle movement.
- these waves contribute to move the mixture of spent cooling water and exhaust gas particles as they travel within the exhaust system out of the exhaust system. Therefore, in an internal combustion engine, it can be said that exhaust gas particles and spent cooling water move out of an internal combustion engine exhaust pipe to the underwater environment due to the phenomenon that compression waves will move particles in the direction of propagation and expansion waves will move particles in the direction opposite their propagation. This phenomenon occurs in a pipe with openings at both ends (i.e. with an exhaust pipe open to the underwater environment at one end and with a valve open to the combustion chamber at the other end).
- the expansion waves may propagate towards the exhaust valve when it is open.
- the negative pressure expansion wave actually enhances combustion cylinder exhaust flow during the exhaust stroke when the negative pressure condition encounters the positive pressure being generated by the piston action. This allows the gas particles to continue to move out of the engine, toward the end of the exhaust pipe, and then into the atmosphere. This phenomenon is basically balanced in the engine when running at quasi steady state (i.e. when acceleration or deceleration is not radical).
- the present invention is directed to an anti ingestion device. It is a principal advantage of the present invention to prevent the back flow of water and foreign paniculate matter into an engine.
- the invention consists of an anti ingestion device for use with an engine, preferably a marine engine.
- the device comprises an exhaust manifold and an exhaust riser system for exhausting engine gases, wherein the exhaust manifold has a first end and a second end, and the first end is connected to a cylinder head.
- There is a one-way pressure relief valve having a first end and a second end, wherein the first end is coupled to the exhaust manifold or the exhaust riser and the second end is exposed to atmospheric pressure.
- An air inlet line is coupled to the second end of the one-way pressure relief valve, such that the air inlet line serves as a conduit for guiding atmospheric pressure to the one-way pressure relief valve, thereby providing atmospheric pressure for passage into the exhaust manifold.
- Fig. 1 is a front view of a marine engine with the anti ingestion device according to the present invention.
- Fig. 2 is an exploded view of the anti ingestion device according to the present invention.
- Fig. 3 is a cross sectional view of the one-way pressure relief valve of the present invention.
- the anti ingestion device 5 is attached to a marine engine 10 into the exhaust manifold 20, or alternatively into the exhaust riser system, having a first end or intake 22 and a second end or outlet 24 for exhausting engine gases, a one-way pressure relief valve 30 having a first end or outlet 32 and a second end or inlet 34, and an air inlet line 40.
- the marine engine 10 and its exhaust manifold 20 can be of any variety, but is preferably cooled by fresh or water circulating through the engine block and cylinder head 12.
- the first end 22 of the exhaust manifold 20 is connected to the cylinder head 12. It is preferred that the first end 32 of the one-way pressure relief valve 30 is coupled to the exhaust manifold 20 and the second end 34 is exposed to atmospheric pressure. Alternatively, the first end 32 of the one-way pressure relief valve 30 is coupled to the exhaust riser. There is preferably an air inlet line 40 coupled to the second end 34 of the one-way pressure relief valve 30, such that the air inlet line 40 serves as a conduit for guiding atmospheric pressure to the one-way pressure relief valve 30, thereby providing atmospheric pressure for passage into the exhaust manifold 20.
- the one-way pressure relief valve 30 shown in Fig. 3 is known to those of ordinary skill in the art.
- the valve 30 comprises a valve seat 33 and a valve seal 35 for abutting the valve seat 33 and preventing the flow of air.
- the valve seal 35 is held in place by a spring 36 until a vacuum of sufficient force is created in the exhaust manifold 20 at which point the valve seal 35 separates from the valve seat 33, thereby allowing air at atmospheric pressure to enter past the valve seal 35 into the exhaust manifold 20.
- the one-way pressure relief valve 30 is preferably connected to the exhaust manifold 20 at an internally threaded bore 28 which is defined in the wall 26 of the exhaust manifold 20.
- the first end 72 of the bolt 70 is adapted to engage the internally threaded bore 28 and the second end 74 of the bolt 70 is adapted to engage the first end 32 of the one-way pressure relief valve 30.
- a vacuum is created in the exhaust manifold 20 due to the phenomena described above. This vacuum causes the exhaust section to draw in water and foreign water from the surrounding environment.
- the vacuum in the exhaust manifold 20 must be overcome.
- One way of overcoming the vacuum is to impart some positive pressure into the exhaust manifold 20, thereby breaking the vacuum and forcing the water and particulate matter out of the exhaust manifold 20 in the desired direction.
- the one-way pressure relief valve 30 opens as described above and the pressure of the ambient air imparts the required positive pressure in the exhaust manifold 20 to overcome the vacuum (i.e. negative pressure).
- the air inlet line 40 while serving as a conduit for the passage of atmospheric pressure to the one-way relief valve 30, also serves the purpose of preventing any exhaust from exiting the exhaust manifold 20 in an uncontrolled manner. For example, once the vacuum in the exhaust manifold 20 is overcome, there is a potential for a small amount of exhaust to exit through the valve 30 before it completely seals.
- the air inlet hose 40 is therefore preferably secured in such a manner that individuals operating the marine engine do not come into contact with the exhaust.
- the air intake line 40 is preferably slidably connected to a bracket 50 which is mounted to the flame arrestor 55 of the marine engine 10.
- the air inlet line 40 faces, but is separated from, the flame arrestor 55.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000592186A JP2002534317A (en) | 1999-01-08 | 1999-12-28 | Suction prevention device |
EP99967653A EP1062152A1 (en) | 1999-01-08 | 1999-12-28 | Anti ingestion device |
CA002322534A CA2322534A1 (en) | 1999-01-08 | 1999-12-28 | Anti ingestion device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/227,333 US6077137A (en) | 1999-01-08 | 1999-01-08 | Anti ingestion device |
US09/227,333 | 1999-01-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2000040463A1 true WO2000040463A1 (en) | 2000-07-13 |
WO2000040463A9 WO2000040463A9 (en) | 2000-12-07 |
Family
ID=22852676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1999/030986 WO2000040463A1 (en) | 1999-01-08 | 1999-12-28 | Anti ingestion device |
Country Status (5)
Country | Link |
---|---|
US (1) | US6077137A (en) |
EP (1) | EP1062152A1 (en) |
JP (1) | JP2002534317A (en) |
CA (1) | CA2322534A1 (en) |
WO (1) | WO2000040463A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002349257A (en) * | 2001-05-21 | 2002-12-04 | Sanshin Ind Co Ltd | Outboard motor |
US6648338B1 (en) | 2002-03-15 | 2003-11-18 | Brunswick Corporation | Exhaust gasket with individually sealed water passages |
US6652337B1 (en) | 2002-03-15 | 2003-11-25 | Brunswick Corporation | Exhaust system for a marine propulsion engine |
JP2004132308A (en) * | 2002-10-11 | 2004-04-30 | Honda Motor Co Ltd | Outboard motor carrying water-cooled engine |
US6994604B1 (en) | 2004-06-18 | 2006-02-07 | Brunswick Corporation | Method for inhibiting water ingestion in a four cycle marine engine |
US8317557B2 (en) | 2010-10-04 | 2012-11-27 | Brunswick Corporation | Anti-ingestion system for a marine drive |
US8651908B1 (en) | 2010-10-04 | 2014-02-18 | Brunswick Corporation | Anti-ingestion system for a marine drive |
US20140034027A1 (en) * | 2012-07-31 | 2014-02-06 | Caterpillar Inc. | Exhaust gas re-circulation system |
CN107503834A (en) * | 2017-09-15 | 2017-12-22 | 张竞博 | Big-power tractor extension type blast pipe |
CN113983018B (en) * | 2021-10-28 | 2023-08-18 | 浙江三尚智迪科技有限公司 | One-way pressure reducing valve |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3552121A (en) * | 1967-12-25 | 1971-01-05 | Yanmar Diesel Engine Co | Means for preventing reverse water flow through exhaust pipe of a rotary piston type marine engine |
US3759041A (en) * | 1972-01-17 | 1973-09-18 | Brunswick Corp | Exhaust water separator for marine engines |
US3921398A (en) * | 1973-08-10 | 1975-11-25 | Outboard Marine Corp | Exhaust manifold with high rise water tube |
US4178873A (en) * | 1978-02-06 | 1979-12-18 | Brunswick Corporation | Exhaust coupling assembly for a marine stern drive |
US4326374A (en) * | 1980-03-18 | 1982-04-27 | The United States Of America As Represented By The Secretary Of The Navy | High velocity exhaust diffuser and water baffle |
US4526002A (en) * | 1983-12-27 | 1985-07-02 | Brunswick Corporation | Exhaust relief system |
US4887692A (en) * | 1987-04-13 | 1989-12-19 | Sanshin Kogyo Kabushiki Kaisha | Noise reducing device for marine propulsion |
US5644914A (en) * | 1995-08-07 | 1997-07-08 | Brunswick Corporation | Exhaust pressure pulsation control apparatus for a marine propulsion system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1038685A (en) * | 1911-04-25 | 1912-09-17 | Albert T Titus | Exhaust for gas-engines. |
-
1999
- 1999-01-08 US US09/227,333 patent/US6077137A/en not_active Expired - Fee Related
- 1999-12-28 CA CA002322534A patent/CA2322534A1/en not_active Abandoned
- 1999-12-28 EP EP99967653A patent/EP1062152A1/en not_active Withdrawn
- 1999-12-28 WO PCT/US1999/030986 patent/WO2000040463A1/en not_active Application Discontinuation
- 1999-12-28 JP JP2000592186A patent/JP2002534317A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3552121A (en) * | 1967-12-25 | 1971-01-05 | Yanmar Diesel Engine Co | Means for preventing reverse water flow through exhaust pipe of a rotary piston type marine engine |
US3759041A (en) * | 1972-01-17 | 1973-09-18 | Brunswick Corp | Exhaust water separator for marine engines |
US3921398A (en) * | 1973-08-10 | 1975-11-25 | Outboard Marine Corp | Exhaust manifold with high rise water tube |
US4178873A (en) * | 1978-02-06 | 1979-12-18 | Brunswick Corporation | Exhaust coupling assembly for a marine stern drive |
US4326374A (en) * | 1980-03-18 | 1982-04-27 | The United States Of America As Represented By The Secretary Of The Navy | High velocity exhaust diffuser and water baffle |
US4526002A (en) * | 1983-12-27 | 1985-07-02 | Brunswick Corporation | Exhaust relief system |
US4887692A (en) * | 1987-04-13 | 1989-12-19 | Sanshin Kogyo Kabushiki Kaisha | Noise reducing device for marine propulsion |
US5644914A (en) * | 1995-08-07 | 1997-07-08 | Brunswick Corporation | Exhaust pressure pulsation control apparatus for a marine propulsion system |
Also Published As
Publication number | Publication date |
---|---|
WO2000040463A9 (en) | 2000-12-07 |
CA2322534A1 (en) | 2000-07-13 |
EP1062152A1 (en) | 2000-12-27 |
JP2002534317A (en) | 2002-10-15 |
US6077137A (en) | 2000-06-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5282361A (en) | Device for facilitating exhaust action of an internal combustion engine | |
EP3290667B1 (en) | Blowby gas treatment device for internal combustion engine with supercharger | |
US6077137A (en) | Anti ingestion device | |
JP2001020715A (en) | Emission control unit provided in internal combustion engine | |
JPH08114160A (en) | Fuel feeding device for internal combustion engine | |
KR100405731B1 (en) | Positive crankcase ventilation system for internal combustion engine and control method thereof | |
JPH08291772A (en) | Egr gas taking-out structure for engine | |
CN108266280A (en) | A kind of EGR rate self-checking device of engine transient loading procedure | |
MXPA00008816A (en) | Anti ingestion device | |
US4092970A (en) | Controlling internal combustion engines | |
JP3063119B2 (en) | Air intake device for a supercharged internal combustion engine | |
KR100369148B1 (en) | Exhaust gas recirculation system for diesel engine | |
JPH08319911A (en) | Intake device for 4-cycle engine | |
US6994604B1 (en) | Method for inhibiting water ingestion in a four cycle marine engine | |
JPS59176419A (en) | Two cycle engine with turbo supercharger | |
JP6835655B2 (en) | EGR device | |
EP3384144B1 (en) | System and method to deactivate at least an engine cylinder with one intake manifold and heat exchanger comprised in the system. | |
US5406925A (en) | Fuel engine combustion aid for a lean-burning | |
JP2599254B2 (en) | V-type engine intake system | |
JPS58110852A (en) | Vaporized fuel controlling apparatus for internal-combustion engine with supercharger | |
JPH0323315A (en) | Suction device for v-engine | |
JP2019060325A (en) | Engine control system | |
KR100305929B1 (en) | Crankcase ventilation system of automobile | |
JP3237313B2 (en) | Gas engine fuel cutoff | |
JP2010019080A (en) | Exhaust device of multi-cylinder engine for outboard motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): CA JP MX |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
ENP | Entry into the national phase |
Ref document number: 2000 592186 Country of ref document: JP Kind code of ref document: A Ref document number: 2322534 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2000/008816 Country of ref document: MX |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999967653 Country of ref document: EP |
|
AK | Designated states |
Kind code of ref document: C2 Designated state(s): CA JP MX |
|
AL | Designated countries for regional patents |
Kind code of ref document: C2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
COP | Corrected version of pamphlet |
Free format text: PAGES 1/3-3/3, DRAWINGS, REPLACED BY NEW PAGES 1/3-3/3; DUE TO LATE TRANSMITTAL BY THE RECEIVING OFFICE |
|
WWP | Wipo information: published in national office |
Ref document number: 1999967653 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999967653 Country of ref document: EP |