US3419892A - Exhaust ejector - Google Patents

Exhaust ejector Download PDF

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Publication number
US3419892A
US3419892A US622699A US62269967A US3419892A US 3419892 A US3419892 A US 3419892A US 622699 A US622699 A US 622699A US 62269967 A US62269967 A US 62269967A US 3419892 A US3419892 A US 3419892A
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United States
Prior art keywords
tube
exhaust
air
ejector
openings
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Expired - Lifetime
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US622699A
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English (en)
Inventor
Wayne M Wagner
William R Wolff
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Donaldson Co Inc
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Donaldson Co Inc
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 Donaldson Co Inc filed Critical Donaldson Co Inc
Priority to US622699A priority Critical patent/US3419892A/en
Priority to DE6608652U priority patent/DE6608652U/de
Priority to GB01754/68A priority patent/GB1202095A/en
Priority to FR1555444D priority patent/FR1555444A/fr
Priority to BE712052D priority patent/BE712052A/xx
Application granted granted Critical
Publication of US3419892A publication Critical patent/US3419892A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M35/02—Air cleaners
    • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
    • 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
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/02—Silencing apparatus characterised by method of silencing by using resonance
    • 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
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/04—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using kinetic energy
    • 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
    • F02M35/02—Air cleaners
    • 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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1227—Flow throttling or guiding by using multiple air intake flow paths, e.g. bypass, honeycomb or pipes opening into an expansion chamber
    • 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
    • F02M35/14—Combined air cleaners and silencers
    • 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
    • F01N2490/00—Structure, disposition or shape of gas-chambers
    • F01N2490/15—Plurality of resonance or dead chambers
    • F01N2490/155—Plurality of resonance or dead chambers being disposed one after the other in flow direction
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the ejector tube comprises a venturi through which the gases pass at an increased velocity causing a reduction in static pressure.
  • One end of an air intake tube is mounted in the venturi and the other end is connected to the air cleaner by a flexible scavenging line, preferably having a check valve mounted therein, to scavenge dirty air from the cleaner during engine operation.
  • This invention relates generally to the field of exhaust ejector systems for internal combustion engines, and more particularly relates to a combined mufller and air ejector unit that both muflles the exhaust noises and utilizes the exhaust gas flow to develop a vacuum that can be used to scavenge the dirty air from an air cleaner.
  • the prior art shows various systems for employing the exhaust gas flow from an internal combustion engine to develop a vacuum that can be utilized to scavenge the dirty air from an air cleaner. None of the prior art systems, however, show that the ejector unit can be made an integral part of the muffler that is normally attached to the exhaust manifold of an internal combustion engine. Further, the prior art systems of which we are aware fail to provide any means to prevent the damage that occurs to the air cleaner when a sudden increase in back pressure in the exhaust system drives the hot exhaust gases into the air cleaner.
  • Our invention provides a unitary mufller and ejector assembly that can be quickly attached to the exhaust manifold of an internal combustion enginein the same manner as a standard mufller.
  • our invention utilizes the flow of exhaust gases through the ejector portion of the assembly to create a vacuum that can be used to perform useful work, in this case, the scavenging of dirty air from an air cleaner for the internal combustion engine.
  • a check valve in the scavenging line between the ejector and the air cleaner to prevent the back flow of hot gases to the air cleaner in case of a pressure reversal in the assembly.
  • FIGURE 1 is a side elevational view of an internal combustion engine having an air cleaner mounted thereon, and having the unitary muffler-ejector assembly of our invention attached to the engine and air cleaner;
  • FIGURE 2 is an enlarged view of the bottom end of the mufller-ejector assembly taken along line 22 of 3,419,892 Patented Dec. 31, 1968 "ice DESCRIPTION OF THE PREFERRED EMBODIMENT
  • an internal combustion engine 10 having an exhaust manifold 11 and an air intake manifold 12.
  • Attached to air intake manifold 12 is a carburetor 13, and attached to carburetor 13 by means of a mounting elbow 14 is an air cleaner 15 having means to scavenge dirty air therefrom.
  • Forming a part of air cleaner 15 is an air intake port 16 and a vacuum nozzle 17.
  • air for combustion enters port 16, is filtered, and is drawn into carburetor 13 via mounting elbow 14.
  • an exhaust pipe 20 Securely attached to one end of the exhaust manifold 11 is an exhaust pipe 20 to carry the exhaust gases away from engine 10.
  • a check valve assembly 25 is securely attached to vacuum nozzle 17 on air cleaner 15. As best shown in FIGURE 6, check valve assembly 25 has a removable cover 25a to provide access to the interior thereof. Check valve assembly 25 includes an air entrance port 26 and an air exit port 27. Entrance port 26 is directly connected to vacuum nozzle 17. Mounted within check valve assembly 25 is a hinged flapper valve 28 that is movable from the valve closed position shown in full lines in FIGURE 6 to the valve open position shown in phantom. During normal engine operation, flapper valve 28 occupies the position shown in phantom to permit air to be drawn from port 26 out through port 27.
  • flapper valve 28 closes to prevent hot exhaust gases from entering air cleaner 15.
  • scavenging line 24 is attached to exit port 27 of check valve assembly 25' by means of a clamp 29.
  • Assembly 22 includes an elongated hollow housing having side walls 25, a generally oval top end plate 36 and a generally oval bottom end plate 37.
  • side walls 35 define a housing having a generally oval cross section, although this particular shape is not critical to the invention and could be changed to a circular cross section, for example.
  • Top end plate 36 and bottom end plate 37 have flanged edges 36a and 37a fit tightly within the opposite open ends of the housing, and are secured to the side walls 35 by welding or the like.
  • a first opening 38 is provided in top end plate 36.
  • a first opening 39 and a second opening 40 are formed in bottom end plate 37.
  • Outwardly turned flanges 38a, 39a, and 40a are formed around the edges of the openings.
  • a first baflle plate 41 and a second baflie plate 42 both having a generally oval shape, are mounted within the housing in parallel with each other and with end plates 3 36 and 37.
  • Bafile plates 41 and 42 have flanged peripheral edges 41a and 42a respectively, which are tightly secured to the interior of side walls 35.
  • Battle plates 41 and 42 are spaced from each other and from end plates 37 and 37 to form a first sound attenuation chamber 45, a second centrally located expansion chamber 46, and a third sound attenuation chamber 47.
  • first baffie plate 41 Formed in first baffie plate 41 are a first opening 48 and a second opening 49.
  • Formed around the edges of openings 48 and 49 are upturned flanges 48a and 49a respectively.
  • Formed in baffle plate 42 are a first opening 52 and a second opening 53 having downwardly turned flanges 52a and 53a formed around their respective edges.
  • all of the first openings 38, 39, 4S, and 52 are coaxially aligned.
  • Second openings 40 and 49 are also coaxially aligned, and laterally otfset from the first openings.
  • An exhaust tube 55 is mounted in second openings 40 and 49 with the outer surface thereof being securely attached to flanges 40a and 49a.
  • the top end 55a of exhaust tube 55 extends into second expansion chamber 46 while the bottom end 55b extends out of the housing from opening 40'.
  • a plurality of performations such as 56 are formed in the walls of exhaust tube 55 Within chamber 45 to permit the flow of exhaust gases from tube 55 into sound attenuation chamber 45.
  • bottom end 55b of exhaust tube 55 is designed to fit over exhaust pipe 21 and is slotted as at 57 to permit the effective use of clamp 21.
  • An ejector tube 60 is mounted in the aligned first openings 38 and 52 and its outer surface is securely attached to flanges 38a and 52a.
  • Ejector tube 60 comprises a gas inlet portion 61 having a relatively large diameter and extending into second chamber 46, a reduced diameter throat portion 62 connected to inlet portion 61, and an outlet portion 63 connected to throat portion 62.
  • the top end of outlet portion 63 extends from opening 38 to discharge the spent exhaust gases into the atmosphere.
  • the diameter of outlet portion 63 gradually increases from its connection with throat portion 62 toward its top end.
  • An air intake tube 65 is mounted in the aligned first openings 39 and 48 with the outside surface thereof securely attached to flanges 39a and 48a.
  • a top end 65a of air intake tube 65 extends upwardly through inlet portion 61 of ejector tube 60 and terminates in throat portion 62 thereof.
  • the bottom end 65b of tube 65 extends from the housing through opening 39.
  • scavenging line 24 fits tightly over bottom end 65b and is clamped tightly thereto by clamp 23.
  • air cleaners of this type have a primary separation stage in which the heavier dirt particles are separated from the air entering the carburetor.
  • This primary separation can be accomplished, for example, by causing the air entering the port 16 to whirl at a high velocity around the filter element of the air cleaner.
  • the dirt particles in the whirling air tend to be forced outwardly due to centrifugal force where they can be skimmed 01f and removed from the cleaner by means of a vacuum applied to vacuum nozzle 17.
  • the remaining cleaner air is carried into the carburetor in the normal manner.
  • the purpose of our invention is to provide a vacuum source for the air cleaner that will operate whenever the engine is running.
  • high pressure exhaust gases are discharged from exhaust pipe and are carried by exhaust tube 55 into the chambers 45, 46, and 47.
  • the exhaust gases then are discharged from the muffler-ejector assembly 22 through ejector tube 60.
  • Ejector tube 60 functions in the following manner.
  • the exhaust gas enters inlet portion 61 and is then squeezed through the reduced diameter throat portion 62 where an increase in gas velocity occurs.
  • the increase in gas velocity causes a reduction in static pressure in throat portion 62.
  • the high velocity exhaust gases are then discharged from the assembly through gas outlet portion 63 which, because of its gradually increasing diameter, effects a reduction in velocity accompanied by a gradual pressure increase.
  • the vacuum developed in throat portion 62 is designed to be greater than the vacuum in the tube chamber of the air cleaner 15.
  • This vacuum applied to vacuum nozzle 17 causes a flow of air from cleaner 15 through check valve assembly 25, scavenging line 24, and air intake tube 65.
  • This air is, of course, discharged from ejector tube 60 along with the spent exhaust gases.
  • check valve assembly 25 can be mounted in scavenging line 24 to prevent the backflow of exhaust gases to the air cleaner.
  • Our invention provides an exceedingly compact mufilerejector assembly that is compatible with existing exhaust systems.
  • the assembly can be mounted in the space normally occupied by the mufiler.
  • the ejector is normally used for removing dirt from the air cleaner, it could be used for other purposes such as the removal of air from the engine compartment to provide cooling. Regardless of how it is used, the particular advantage of this assembly is that it supplies a vacuum source to the vehicle without appreciably altering the size of the engine package.
  • a combination muffler and ejector unit for internal combustion engines comprising:
  • an elongated hollow housing having side walls defining generally uniform oval cross sections throughout its length, having a generally oval top end plate with a first opening therein, and having a generally oval bottom end plate with first and second openings therein, said top and bottom end plates being secured to the opposite ends of said side walls around the edges thereof in a generally parallel relationship.
  • baflle plates mounted within said housing in parallel with said end plates, said bafile plates having their entire peripheral edges secured to the interior of said side walls and being spaced from each other and from said end plates to form a first sound attenuation chamber between said bottom end plate and said first baflie plate, a second centrally located expansion chamber between said baflle Plates, and a third sound attenuation chamber between said second baflie plate and said top end plate, each of said baffle plates having first and second openings formed therein, all of said first openings being coaxially aligned, and all of said second openings being coaxially aligned;
  • an exhaust tube mounted in said aligned second openings in said bottom end plate and said first baffle plate, one end thereof extending into said second chamber, and the other end thereof extending from said opening in said bottom end plate and adapted to be connected to the exhaust manifold of an internal combustion engine, said exhaust tube having perforations in the walls thereof communicating with said first chamber;
  • an ejector tube mounted in said aligned first openings in said top end plate and said second bafile plate, said ejector tube comprising a venturi having a gas inlet portion extending into said second chamber, a throat portion connected to said inlet portion and an outlet portion connected to said throat portion extending from said first opening in said top end plate, said exhaust tube and said ejector tube being sealed in said openings so that the exhaust gases from said exhaust tube exit to the atmosphere through said ejector tube to develop an area of reduced pressure in said throat portion;
  • an air intake tube mounted in said aligned first openings in said bottom end plate and said first baflle plate, one end of said air intake tube terminating in said throat portion of said ejector tube and the other end thereof extending from said bottom end plate, said air intake tube being sealed in each of said openings so that outside air is drawn therethrough by said reduced pressure in said throat area during operating of the internal combustion engine.
  • a combination mufiier and ejector unit for internal combustion engines comprising:
  • an elongated hollow housing having side walls defining generally uniform oval cross sections throughout its length, having a generally oval top end plate with a first opening therein, and having a generally oval bottom end plate with first and second openings therein, said top and bottom end plates being secured to the opposite ends of said side walls around the edges thereof in a generally parallel relationship;
  • baflle plates mounted within said housing in parallel with said end plates, said bafile plates having their entire peripheral edges secured to the interior of said side walls and being spaced from each other and from said end plates to form a first sound attenuation chamber between said bottom end plate and said first bafiie plate, a second centrally located expansion chamber between said baffle plates, and a third sound attenuation chamber between said second bafile plate and said top end plate, each of said baflle plates having first and second openings formed therein, all of said first openings being coaxially aligned, and all of said second openings being coaxially aligned;
  • an exhaust tube mounted in said aligned second openings in said bottom end plate and said first bafile plate, one end thereof opening into said second chamber, and the other end thereof extending from said opening in said bottom end plate and adapted to be connected to the exhaust manifold of an internal combustion engine, said exhaust tube having perforations in the walls thereof communicating with said first chamber;
  • an ejector tube mounted in said aligned first openings in said top end plate and said second bafiie plate, said ejector tube comprising a venturi having a gas inlet portion extending into said second chamher, a throat portion connected to said inlet portion and an outlet portion connected to said throat portion extending from said first opening in said top end plate, said exhaust tube and said ejector tube being sealed in said openings in said end plates so that the exhaust gases from said exhaust tube exit to the atmosphere through said ejector tube to develop an area of reduced pressure in said throat portion;
  • an air intake tube mounted in said aligned first openings in said bottom end plate and said first baflle plate, one end of said air intake tube terminating in said throat portion of said ejector tube and the other end thereof extending from said bottom end plate, said air intake tube being sealed in said opening in said bottom end plate so that outside air is drawn therethrough by said reduced pressure in said throat area during operating of the internal combustion engine.
  • a combination muffler and ejector unit for internal combustion engines comprising:
  • an elongated hollow housing having side walls defining generally uniform oval cross sections throughout its length, having a generally oval top end plate and a generally oval bottom end plate, said top and bottom end plates being secured to the opposite ends of said side walls around the edges thereof in a generally parallel relationship;
  • bafile plates mounted within said housing in parallel with said end plates, said bafile plates having their edges secured to the interior of said side Walls and being spaced from each other and from said end plates to form a first sound attenuation chamber between said bottom end plate and said first battle plate, a second centrally located expansion chamber between said bafile plates, and a third sound attenuation chamber between said second baflle plate and said top end plate;
  • said first end of said air intake tube extending into said gas inlet portion of said ejector tube coaxially therewith and terminating within said throat portion of said ejector tube, said second end extending from said housing, said air intake tube being sealed in said housin so that outside air is drawn therethrough by said reduced pressure in said throat portion during operation of the internal combustion engine.
  • a combination muffier and ejector unit for internal combustion engines comprising:
  • a mufiler housing having a plurality of sound attenuation chambers therein, including a generally centrally located chamber;
  • said ejector tube comprising a venturi having a gas inlet portion opening into said centrally located chamber, a throat portion, and a gas outlet portion extending through said housing to atmosphere;
  • an air intake tube mounted in said housing to carry outside air into said venturi during engine operation, said air intake tube having a first end extending from said housing, and a second end extending into said gas inlet portion and terminating within said throat portion of said ejector tube;

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Exhaust Gas After Treatment (AREA)
US622699A 1967-03-13 1967-03-13 Exhaust ejector Expired - Lifetime US3419892A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US622699A US3419892A (en) 1967-03-13 1967-03-13 Exhaust ejector
DE6608652U DE6608652U (de) 1967-03-13 1968-02-29 Kombinierte schalldaempfer- und ejektoranordnung.
GB01754/68A GB1202095A (en) 1967-03-13 1968-03-11 A combined exhaust silencer and air suction unit for use with internal combustion engines
FR1555444D FR1555444A (enrdf_load_stackoverflow) 1967-03-13 1968-03-12
BE712052D BE712052A (enrdf_load_stackoverflow) 1967-03-13 1968-03-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US622699A US3419892A (en) 1967-03-13 1967-03-13 Exhaust ejector

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Publication Number Publication Date
US3419892A true US3419892A (en) 1968-12-31

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US622699A Expired - Lifetime US3419892A (en) 1967-03-13 1967-03-13 Exhaust ejector

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US (1) US3419892A (enrdf_load_stackoverflow)
BE (1) BE712052A (enrdf_load_stackoverflow)
DE (1) DE6608652U (enrdf_load_stackoverflow)
FR (1) FR1555444A (enrdf_load_stackoverflow)
GB (1) GB1202095A (enrdf_load_stackoverflow)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631792A (en) * 1970-06-15 1972-01-04 Albert G Bodine Sonic internal combustion engine exhaust afterburner
US4178760A (en) * 1976-12-02 1979-12-18 Filterwerk Mann & Hummel Gmbh Filter dust ejector and check valve arrangement in exhaust system of internal combustion engine
US4267899A (en) * 1979-08-31 1981-05-19 Donaldson Company, Inc. Muffler assembly
US4325460A (en) * 1980-04-14 1982-04-20 Donaldson Company, Inc. Ejector muffler
US4359135A (en) * 1979-08-31 1982-11-16 Donaldson Company, Inc. Muffler assembly
US4506749A (en) * 1981-12-30 1985-03-26 Allis-Chalmers Corporation Underhood muffler for tractor
US4580657A (en) * 1983-06-16 1986-04-08 Donaldson Company, Inc. Integral fluted tube for sound suppression and exhaust ejection
US4632216A (en) * 1984-06-27 1986-12-30 Donaldson Company, Inc. Muffler apparatus and method for making same
US4697668A (en) * 1986-01-13 1987-10-06 Nelson Industries Inc. Aspirating muffler
US5112372A (en) * 1991-10-22 1992-05-12 Donaldson Company, Inc. Advanced disposable air cleaner
US5123501A (en) * 1988-10-21 1992-06-23 Donaldson Company, Inc. In-line constricted sound-attenuating system
EP0536038A1 (fr) * 1991-10-02 1993-04-07 RENAULT VEHICULES INDUSTRIELS Société Anonyme dite: Dispositif d'aspiration permettant l'évacuation, dans la ligne d'échappement d'un moteur à combustion interne de poussières contenues dans l'air d'admission de ce moteur, et ligne d'échappement comportant un tel dispositif
US6419718B1 (en) 2000-10-13 2002-07-16 Donaldson Company, Inc. Cover member and air cleaner construction; use; and, method of assembly
US20040216611A1 (en) * 2003-04-30 2004-11-04 Moredock James G. Air precleaner and method for separating heavier-than-air particulate debris from debris laden air
WO2006061466A1 (fr) 2004-12-06 2006-06-15 Renault V.I. Element d'un circuit d'echappement de moteur a combustion
WO2011037996A1 (en) * 2009-09-25 2011-03-31 Tenneco Automotive Operating Company, Inc. Combined exhaust gas aftertreatment/air cleaner dust and ejector unit
EP2128394A3 (en) * 2008-05-30 2012-02-29 Deere & Company Engine exhaust cooler and air pre-cleaner aspirator
US20120241031A1 (en) * 2010-07-30 2012-09-27 Mann+Hummel Gmbh Non-return valve and filter arrangement
CN102720608A (zh) * 2012-06-21 2012-10-10 金龙联合汽车工业（苏州）有限公司 客车空滤器强制排尘装置
US20190257276A1 (en) * 2018-02-22 2019-08-22 CNH Industrial America, LLC Aspiration system for a work vehicle
US11346270B2 (en) * 2018-02-15 2022-05-31 Honda Motor Co., Ltd. Muffler unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111535952B (zh) * 2020-05-10 2022-08-12 陈超胜 一种废气再利用的磁力增压型发动机进气过滤装置

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Publication number Priority date Publication date Assignee Title
US1377191A (en) * 1921-05-10 of chigago
US1402814A (en) * 1920-09-23 1922-01-10 Wilhelm Schmidding Arrangement for purifying and rendering odorless the exhaust gases of internal-combustion engines and the like
US1577626A (en) * 1922-07-05 1926-03-23 Nathaniel G Warth Muffler for automotive engines
US2045142A (en) * 1933-09-05 1936-06-23 Trico Products Corp Suction producing muffler
US2055453A (en) * 1934-02-19 1936-09-22 Trico Products Corp Muffler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1377191A (en) * 1921-05-10 of chigago
US1402814A (en) * 1920-09-23 1922-01-10 Wilhelm Schmidding Arrangement for purifying and rendering odorless the exhaust gases of internal-combustion engines and the like
US1577626A (en) * 1922-07-05 1926-03-23 Nathaniel G Warth Muffler for automotive engines
US2045142A (en) * 1933-09-05 1936-06-23 Trico Products Corp Suction producing muffler
US2055453A (en) * 1934-02-19 1936-09-22 Trico Products Corp Muffler

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3631792A (en) * 1970-06-15 1972-01-04 Albert G Bodine Sonic internal combustion engine exhaust afterburner
US4178760A (en) * 1976-12-02 1979-12-18 Filterwerk Mann & Hummel Gmbh Filter dust ejector and check valve arrangement in exhaust system of internal combustion engine
US4267899A (en) * 1979-08-31 1981-05-19 Donaldson Company, Inc. Muffler assembly
US4359135A (en) * 1979-08-31 1982-11-16 Donaldson Company, Inc. Muffler assembly
US4325460A (en) * 1980-04-14 1982-04-20 Donaldson Company, Inc. Ejector muffler
US4506749A (en) * 1981-12-30 1985-03-26 Allis-Chalmers Corporation Underhood muffler for tractor
US4580657A (en) * 1983-06-16 1986-04-08 Donaldson Company, Inc. Integral fluted tube for sound suppression and exhaust ejection
US4632216A (en) * 1984-06-27 1986-12-30 Donaldson Company, Inc. Muffler apparatus and method for making same
US4697668A (en) * 1986-01-13 1987-10-06 Nelson Industries Inc. Aspirating muffler
US5123501A (en) * 1988-10-21 1992-06-23 Donaldson Company, Inc. In-line constricted sound-attenuating system
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Also Published As

Publication number Publication date
BE712052A (enrdf_load_stackoverflow) 1968-07-15
DE6608652U (de) 1971-09-30
FR1555444A (enrdf_load_stackoverflow) 1969-01-24
GB1202095A (en) 1970-08-12

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