US3875745A - Venturi exhaust cooler - Google Patents

Venturi exhaust cooler Download PDF

Info

Publication number
US3875745A
US3875745A US39561773A US3875745A US 3875745 A US3875745 A US 3875745A US 39561773 A US39561773 A US 39561773A US 3875745 A US3875745 A US 3875745A
Authority
US
United States
Prior art keywords
housing
venturi tube
exhaust gas
venturi
exhaust
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Nick F Franklin
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.)
Atlas Copco Construction and Mining Technique AB
Wagner Mining Equipment Inc
Original Assignee
Wagner Mining Equipment 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 Wagner Mining Equipment Inc filed Critical Wagner Mining Equipment Inc
Priority to US39561773 priority Critical patent/US3875745A/en
Application granted granted Critical
Publication of US3875745A publication Critical patent/US3875745A/en
Assigned to ATLAS COPCO CONSTRUCTION AND MINING HOLDING AB, A SWEDISH CORP. reassignment ATLAS COPCO CONSTRUCTION AND MINING HOLDING AB, A SWEDISH CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PACCAR INC.
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

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
    • F01N3/05Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of air, e.g. by mixing exhaust with air
    • 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
    • Y02T10/20Exhaust after-treatment

Abstract

The kinetic energy of the exhaust gas from an internal combustion engine is utilized as a driving fluid to aspirate a large volume of quiescent ambient air as a driven fluid for cooling the exhaust gas quickly in a very short path of travel. This mode of operation is to be distinguished from conventional injector and ejector devices utilizing a current of air as the driving fluid. The present device utilizes the Coanda effect to introduce the exhaust gas around a lip on one end of a venturi tube, causing the gas to flow in a high velocity film adherent to the inner surface of the tube. This laminar flow draws in a large volume flow of air through the center of the venturi, cooling 1000.degree.F. exhaust gas down almost to ambient temperature in a distance of a few inches.

Description

United States Patent 1 I 1 3,875,745

Franklin l Apr. 8, 1975 VENTUR EXHAUST COOLER FOREIGN PATENTS OR APPLICATIONS I 1 lm'tlmml Nisk Franklin- Pml'tmde Oregl lfi(l 84-l 3/1958 France 239/010. 7

I73] Assignec: Wagner Minning Equipment. Inc.,

P d 0 Primary E.tmniner-Douglas Hart Attorney. Agenh or Firm-Lee R. Schermerhorn [22] Filed: Sept. 10. I973 [2|] Appl. No.: 395.617 57 ABSTRACT The kinetic energy of the exhaust gas from an internal [52] [1.5. CI. 60/319; 60/320; 4 l 7/l97 combustion engine is utilized as a driving fluid to aspi- [Sll Int. Cl. FOln 3/02 rate a large volume of quiescent ambient air as a [58] Field of Search 60/317, 3l9, 320, 308; driven fluid for cooling the exhaust gas quickly in a 4] 7/l83 197. I59; l8l/5l; 239/DIG. 7; very short path of travel. This mode of operation is to l23/4L64 be distinguished from conventional injector and ejector devices utilizing a current of air as the driving [56I References Cited fluid. The present device utilizes the Coanda effect to UMTED S TES P T introduce the exhaust gas around a lip on one end of a 7 venturi tubc. causing the gas to flow in a high velocity 132233;; 11135 fiitfsisriiii31133111311"til/3V21 fltttt eetttetettt te the et the tube The 1,4535 1933 H 417/133 laminar flow draws in a large volume flow of air 1.635.938 7/1927 Hudson Isl/5| r gh the center of the venturi. cooling I000F. exl 794 27h 2/l93l Bowes 60/319 haust gas down almost to ambient temperature in a :JXUJIJ 7/1945 Winteringham i r. 4l7/lii3 distance of u few inches 2.77ll47 ll/lJSfi Bowen r t. 60/298 3il-l2.l5(l 7/l9h4 Pcarlman i 60/298 3 Ciaimse 4 Drawing Figures 3.468.472 9/[969 Hahn 4l7/l97 VENTURI EXHAUST coouza BACKGROUND OF THE INVENTION This invention relates to a venturi exhaust cooler for internal combustion engines.

In certain operations, as in mines and tunnels where workmen must work in a limited space around internal combustion engines, it is necessary to cool the engine exhaust before discharging it into the atmosphere in order to prevent injury and discomfort to the workmen. Ordinarily, this is accomplished by providing an exhaust pipe of sufficient length to reduce the tempera ture to a tolerable value. This is an undesirable expedient, however, because of the considerable length of pipe required and the physical space occupied by the pipe. Such engines are usually equipped with rather bulky accessory devices, making any additional space requirements objectionable, particularly in underground work where it is necessary to make the equipment and machinery as compact as possible.

Air injectors and ejectors have heretofore been proposed for airplane and automobile engine exhausts, utilizing a strong current of air developed by the movement of the vehicle. This means of cooling is not available to the present class of equipment which involves stationary engines and types of vehicles such as loaders which do all or most of their work while standing still. Other vehicles, such as rock and ore carriers, travel too slowly to generate an adequate air stream for cooling purposes.

Utilization of the air stream from the engine cooling fan is not satisfactory either, because of the space re quirements of the ducting to convey the air stream from the fan back to the engine exhaust or, conversely,

to convey the engine exhaust forward to the air stream from the f; n. In order to simplify the construction and make the equipment as compact as possible, it is desirable to discharge the exhaust gases as close as possible to the exhaust manifold.

Another problem inherent in the operation of internal combustion engines in underground work is the usual requirement for a catalytic converter to remove certain noxious substances from the exhaust gas. Such converters require the exhaust gas to pass through at a temperature of at least 1000F. whereby there can be only a minimum of cooling between the engine and the converter. Thus, there is substantially no pre-cooling in the exhaust system and the exhaust gas must be introduced into the cooler at approximately its engine temperature.

Objects of the invention are, therefore, to provide an exhaust cooler for internal combustion engines which overcomes the problems pointed out above, to provide an exhaust cooler which does not require a long exhaust pipe and which does not require a moving air stream, to provide an improved venturi exhaust cooler, to provide a venturi exhaust cooler utilizing the kinetic energy of the exhaust gas as a driving fluid to aspirate a large volume of quiescent ambient air as a driven fluid for cooling the exhaust gas quickly in a very short path of travel, to provide a venturi exhaust cooler which may be disassembled for cleaning, and to provide a venturi exhaust cooler which is adjustable to minimize back pressure on the engine.

SUMMARY OF THE INVENTION The present venturi cooler is to be distinguished from conventional injector and ejector devices using a current of air as the driving fluid. In the present device the kinetic energy of the exhaust gas from the internal combustion engine is utilized as a driving fluid to aspirate a large volume of quiescent ambient air as a driven fluid for cooling the exhaust gas quickly in a very short path of travel. The device utilizes the Coanda effect to introduce the exhaust gas around a lip on one end of a venturi tube, causing the gas to flow in a high velocity film adherent to the inner surface of the tube. This laminar flow draws in a large volume of air through the center of the venturi, cooling lO00F. exhaust gas down almost to ambient temperature in a distance of a few inches.

The device is adjustable to obtain maximum cooling effect and minimize back pressure on a particular engine and the device may be disassembled for cleaning.

The invention will be better understood and additional objects and advantages will become apparent from the following description of the preferred embodiment illustrated on the accompanying drawing. Various changes may be made, however, in the details of con struction and arrangement of parts and certain features may be used without others. All such modifications within the scope of the appended claims are included in the invention.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a side elevation view, with parts broken away and parts in section, showing a venturi exhaust cooler embodying the invention;

FIG. 2 is a view on the line 2-2 in FIG. 1;

FIG. 3 is a view on the line 3-3 in FIG. 2', and

FIG. 4 is a view similar to FIG. 3 showing a modificatron.

DESCRIPTION OF THE PREFERRED EMBODIMENT In FIG. 1 combustion engine 10 has an exhaust manifold l1 discharging into a short exhaust pipe 12. The exhaust gases are passed through a conventional cylindrical catalytic converter 13 which removes certain noxious substances. For effective operation, the gases must pass through catalytic converter 13 at a temperature not lower than 1000F. The hot exhaust gases leave converter 13 through a short pipe 14 to the present venturi exhaust cooler 20 whence they are discharged into the atmosphere.

Venturi cooler 20 is conveniently and economically made in two parts which may be disassembled for cleaning. The outer part is a shell or housing 21 having integral cooling fins 22 and a tubular inlet connection 23 which is adapted to be welded at 24 to the lower end of pipe 14. Housing 21 is cylindrical with an inturned radial flange or wall 25 on one end having an inner edge 26 defining an air inlet opening. The other end of housing 21 is internally threaded at 27 and provided with a setscrew 28.

Mounted within housing 21 is a venturi tube 30 having a curved outturned lip 31 on one end thereof spaced a short distance inside of flange 25 to provide an annular axial gap at 32 between said lip and flange. Lip 31 extends in a smooth curve from a reduced venturi throat 33. Flange 25 overlaps lip 31 a short distance in a radial direction, the inner edge 26 of the flange being of less diameter than lip 31 and of greater diameter than throat 33.

The other end of venturi tube has threaded engagement with the screw thread 27 in housing 21 to support the venturi tube in the housing. This screw threaded connection permits axial adjustment of the gap 32, the adjustment being fixed by setscrew 28 which bears against a cylindrical surface on the ven turi tube. The threaded end of the venturi tube has a protruding end portion 36 of external hexagonal shape for convenient wrench adjustment and removal for cleaning.

The shape of venturi tube 30 provides an annular exhaust inlet chamber 40 surrounding the throat of the venturi tube within housing 21. Housing 21 and venturi tube 30 are preferably made as cast metal parts.

Exhaust gas entering chamber 40 can escape only through the orifice formed by annular gap 32. The adjacent position and overlapping relationship of flange 25 with respect to lip 31 produces a Coanda effect, causing the high velocity exhaust gas stream to follow the contour of lip 31 and throat 33 and adhere to these surfaces in laminar flow as indicated by arrows 41. By reason of the Coanda effect, no exhaust gas escapes through opening 26. The laminar flow of exhaust gas 41 through throat 33 creates a suction which pulls in a large volume of air through the center of the venturi as indicated by arrows 42 whereby exhaust gas leaving converter 13 at approximately [000F. is cooled down almost to ambient temperature in approximately seven inches of travel through venturi tube 30. The Coanda effect is explained in Coanda US. Pat. No. 2.052.869.

The air flow 42 is induced entirely by the flow of exhaust gas 41 and does not require any external means for forcing the air through the venturi tube, such as the movement of a vehicle or an engine cooling fan. The ambient air available to opening 26 may be in a com pletely quiescent state. Thus. the exhaust gas 41 functions as a driving fluid and the air 42 functions as a driven fluid. which mode of operation is the reverse of conventional air injectors and ejectors for exhaust gases.

This unique mode of operation makes the present exhaust cooler effective on stationary engines and vehicle engines which operate under load while the vehicle is stationary or moving slowly. This mode of operation also allows the engine exhaust to be discharged in any direction and with a minimum of ducting so that lengthy exhaust pipes are not necessary in order to direct the exhaust away from working areas where work men might be injured by exposure to a high temperature exhaust. Thus. the present exhaust may be discharged laterally in the most convenient position from the engine compartment of a vehicle or stationary machine without danger of burning workmen alongside the vehicle or machine.

The venturi tube adjustment at 27 permits use of one size of exhaust cooler on a variety of different engines. The venturi tube may be readily shifted axially toward or away from flange 25 to vary the opening of slot orifree 32 and produce the greatest cooling effect without objectionable back pressure for any given engine so that a different cooler does not have to be made for each different size and model of engine. This permits the casting in large volume of standard housing and venturi tube parts 21 and 31 which effects considerable economy of manufacture.

In the modification in FIG. 4 adjustment of orifice gap 32 is provided by shims 50 which may be added or removed as desired. Venturi tube 30a has an external flange 51 which is adjustably and detachably secured to an internal flange 52 in shell 21a by screws 53. Adding shims 50 increases the gap 32 and removing shims nar' rows the gap as described in connection with FIG. 3.

Having now described my invention and in what manner the same be used, what I claim as new and desire to protect by Letters Patent is:

l. A venturi exhaust cooler comprising a housing having an upstream end and a downstream end, cooling fins on the outside of said housing. an exhaust gas inlet connection in one side of said housing between said ends, an inturned flange on said upstream end forming an air inlet opening, a venturi tube having an upstream end and a downstream end, a curved outturned lip on said upstream end of said venturi tube spaced behind said housing flange. and means on the downstream ends of said housing and venturi tube for mounting said venturi tube in said housing, said housing and cooling fins extending substantially the full length of said venturi tube. the downstream end of said venturi tube being exposed to atmosphere and said venturi tube being removable through said downstream end of said housing for cleaning. said mounting means including longitudinal adjustment means to vary the spacing of said venturi tube lip behind said housing flange, and said housing forming an exhaust gas inlet chamber around said venturi tube causing exhaust gas from said chamber to follow the contour of said lip and tube in laminar flow under the Coanda effect and draw air through said inlet opening into the center of said tube to cool said exhaust gas.

2. An exhaust cooler as defined in claim 1, said mounting means comprising flanges on said downstream ends of said housing and venturi tube, and screws securing said flanges together, said adjustment means comprising shims between said flanges 3. An exhaust cooler as defined in claim 1, said mounting and adjustment means comprising a screw threaded connection between said housing and venturi tube.

Claims (3)

1. A venturi exhaust cooler comprising a housing having an upstream end and a downstream end, cooling fins on the outside of said housing, an exhaust gas inlet connection in one side of said housing between said ends, an inturned flange on said upstream end forming an air inlet opening, a venturi tube having an upstream end and a downstream end, a curved outturned lip on said upstream end of said venturi tube spaced behind said housing flange, and means on the downstream ends of said housing and venturi tube for mounting said venturi tube in said housing, said housing and cooling fins extending substantially the full length of said venturi tube, the downstream end of said venturi tube being exposed to atmosphere and said venturi tube being removable through said downstream end of said housing for cleaning, said mounting means including longitudinal adjustment means to vary the spacing of said venturi tube lip behind said housing flange, and said housing forming an exhaust gas inlet chamber around said venturi tube causing exhaust gas from said chamber to follow the contour of said lip and tube in laminar flow under the Coanda effect and draw air through said inlet opening into the center of said tube to cool said exhaust gas.
2. An exhaust cooler as defined in claim 1, said mounting means comprising flanges on said downstream ends of said housing and venturi tube, and screws securing said flanges together, said adjustment means comprising shims between said flanges.
3. An exhaust cooler as defined in claim 1, said mounting and adjustment means comprising a screw threaded connection between said housing and venturi tube.
US39561773 1973-09-10 1973-09-10 Venturi exhaust cooler Expired - Lifetime US3875745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US39561773 US3875745A (en) 1973-09-10 1973-09-10 Venturi exhaust cooler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39561773 US3875745A (en) 1973-09-10 1973-09-10 Venturi exhaust cooler

Publications (1)

Publication Number Publication Date
US3875745A true US3875745A (en) 1975-04-08

Family

ID=23563769

Family Applications (1)

Application Number Title Priority Date Filing Date
US39561773 Expired - Lifetime US3875745A (en) 1973-09-10 1973-09-10 Venturi exhaust cooler

Country Status (1)

Country Link
US (1) US3875745A (en)

Cited By (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679395A (en) * 1984-10-25 1987-07-14 Ou A Lin Cleaning means for vehicle exhausting pipe
US4679601A (en) * 1983-03-31 1987-07-14 Bucher-Guyer Ag Method and an apparatus for accelerating air or gas exchange
GB2233037A (en) * 1988-11-26 1991-01-02 James David Coleman Coanda pump powered by engine exhaust gases
GB2252128A (en) * 1991-01-24 1992-07-29 S & C Thermofluids Ltd Providing intercooler air coolant flow in turbocharged engines.
US5421154A (en) * 1992-07-23 1995-06-06 Pfefferle; William C. Exhaust temperature control
US5697361A (en) * 1992-09-28 1997-12-16 Smith; William C. Induction pump method for increased breathable air flow of cooled and reduced humidity air
US5974802A (en) * 1997-01-27 1999-11-02 Alliedsignal Inc. Exhaust gas recirculation system employing a fluidic pump
US20070119985A1 (en) * 2005-10-19 2007-05-31 Gm Global Technology Operations, Inc. Fluid Entrainment Apparatus
US20070261399A1 (en) * 2006-05-10 2007-11-15 Mallampalli Hemant P Cooling device
US20090060711A1 (en) * 2007-09-04 2009-03-05 Dyson Technology Limited Fan
US20090120066A1 (en) * 2007-11-14 2009-05-14 Paccar Inc. Cooling device for high temperature exhaust
US20090293836A1 (en) * 2008-05-30 2009-12-03 Schindler Rodney A Engine exhaust cooler and air pre-cleaner aspirator
US20100150699A1 (en) * 2008-12-11 2010-06-17 Dyson Technology Limited Fan
US20100226763A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226797A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226754A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226758A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226751A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226752A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226769A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226787A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100225012A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Humidifying apparatus
US20100226801A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226749A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100254800A1 (en) * 2008-09-23 2010-10-07 Dyson Technology Limited Fan
US20110110805A1 (en) * 2009-11-06 2011-05-12 Dyson Technology Limited Fan
US7972111B2 (en) 2009-03-04 2011-07-05 Dyson Technology Limited Fan assembly
US20110236229A1 (en) * 2010-03-23 2011-09-29 Dyson Technology Limited Accessory for a fan
US8348596B2 (en) 2009-03-04 2013-01-08 Dyson Technology Limited Fan assembly
US8366403B2 (en) 2010-08-06 2013-02-05 Dyson Technology Limited Fan assembly
US8469660B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
US8469658B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan
US20130263832A1 (en) * 2012-04-05 2013-10-10 Donald B. Scoggins Fluid Cooling System
US8734094B2 (en) 2010-08-06 2014-05-27 Dyson Technology Limited Fan assembly
JP2014521863A (en) * 2011-07-29 2014-08-28 ルノー・トラックス Vehicle equipped with an exhaust system and such an exhaust device
US8873940B2 (en) 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited Fan
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US8967980B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US9011116B2 (en) 2010-05-27 2015-04-21 Dyson Technology Limited Device for blowing air by means of a nozzle assembly
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729374S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
USD746425S1 (en) 2013-01-18 2015-12-29 Dyson Technology Limited Humidifier
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus
US9732763B2 (en) 2012-07-11 2017-08-15 Dyson Technology Limited Fan assembly
US9745981B2 (en) 2011-11-11 2017-08-29 Dyson Technology Limited Fan assembly
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
EP3232027A1 (en) 2016-04-12 2017-10-18 Deere & Company Venturi exhaust gas cooler
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
WO2018031487A1 (en) * 2016-08-08 2018-02-15 Jetoptera, Inc. Internal combustion engine exhaust pipe fluidic purger system
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US10001048B2 (en) 2016-03-21 2018-06-19 Paccar Inc Cyclonic thermal diffuser and method
US10094392B2 (en) 2011-11-24 2018-10-09 Dyson Technology Limited Fan assembly
US10100836B2 (en) 2010-10-13 2018-10-16 Dyson Technology Limited Fan assembly
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
US10207812B2 (en) 2015-09-02 2019-02-19 Jetoptera, Inc. Fluidic propulsive system and thrust and lift generator for aerial vehicles

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1217021A (en) * 1916-02-15 1917-02-20 Alexis Lebedeff Silencer for internal-combustion engines.
US1362293A (en) * 1919-05-23 1920-12-14 Guttenstein Joseph Exhaust-gas-actuated cooling device for motor-vehicles
US1458523A (en) * 1921-11-30 1923-06-12 Benoni L Coutant Ejector
US1635938A (en) * 1920-10-16 1927-07-12 John W Hudson Cooling mechanism for internal-combustion engines
US1794276A (en) * 1929-12-14 1931-02-24 John J Bowes Exhaust muffler
US2380714A (en) * 1944-06-29 1945-07-31 Alfred W Carter Ejector
US2772147A (en) * 1951-04-06 1956-11-27 Oxy Catalyst Inc Exhaust gas treating unit
US3142150A (en) * 1961-09-18 1964-07-28 Martin B Pearlman Devices for use in the treatment of exhaust gases of internal combustion engines
US3468472A (en) * 1967-09-15 1969-09-23 Global Systems Flow augmented nozzle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1217021A (en) * 1916-02-15 1917-02-20 Alexis Lebedeff Silencer for internal-combustion engines.
US1362293A (en) * 1919-05-23 1920-12-14 Guttenstein Joseph Exhaust-gas-actuated cooling device for motor-vehicles
US1635938A (en) * 1920-10-16 1927-07-12 John W Hudson Cooling mechanism for internal-combustion engines
US1458523A (en) * 1921-11-30 1923-06-12 Benoni L Coutant Ejector
US1794276A (en) * 1929-12-14 1931-02-24 John J Bowes Exhaust muffler
US2380714A (en) * 1944-06-29 1945-07-31 Alfred W Carter Ejector
US2772147A (en) * 1951-04-06 1956-11-27 Oxy Catalyst Inc Exhaust gas treating unit
US3142150A (en) * 1961-09-18 1964-07-28 Martin B Pearlman Devices for use in the treatment of exhaust gases of internal combustion engines
US3468472A (en) * 1967-09-15 1969-09-23 Global Systems Flow augmented nozzle

Cited By (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4679601A (en) * 1983-03-31 1987-07-14 Bucher-Guyer Ag Method and an apparatus for accelerating air or gas exchange
US4679395A (en) * 1984-10-25 1987-07-14 Ou A Lin Cleaning means for vehicle exhausting pipe
GB2233037A (en) * 1988-11-26 1991-01-02 James David Coleman Coanda pump powered by engine exhaust gases
GB2233037B (en) * 1988-11-26 1993-08-11 James David Coleman Combustion engines
GB2252128A (en) * 1991-01-24 1992-07-29 S & C Thermofluids Ltd Providing intercooler air coolant flow in turbocharged engines.
US5421154A (en) * 1992-07-23 1995-06-06 Pfefferle; William C. Exhaust temperature control
US5697361A (en) * 1992-09-28 1997-12-16 Smith; William C. Induction pump method for increased breathable air flow of cooled and reduced humidity air
US5974802A (en) * 1997-01-27 1999-11-02 Alliedsignal Inc. Exhaust gas recirculation system employing a fluidic pump
US7637099B2 (en) * 2005-10-19 2009-12-29 Gm Global Technology Operations, Inc. Fluid entrainment apparatus
DE102006049005B4 (en) * 2005-10-19 2014-02-20 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Fluid driving device, and thus equipped exhaust system
US20070119985A1 (en) * 2005-10-19 2007-05-31 Gm Global Technology Operations, Inc. Fluid Entrainment Apparatus
US20070261399A1 (en) * 2006-05-10 2007-11-15 Mallampalli Hemant P Cooling device
US7669411B2 (en) 2006-05-10 2010-03-02 Caterpillar Inc. Cooling device
US20090060710A1 (en) * 2007-09-04 2009-03-05 Dyson Technology Limited Fan
US8308445B2 (en) 2007-09-04 2012-11-13 Dyson Technology Limited Fan
US20110058935A1 (en) * 2007-09-04 2011-03-10 Dyson Technology Limited Fan
US20110223015A1 (en) * 2007-09-04 2011-09-15 Dyson Technology Limited Fan
US20090060711A1 (en) * 2007-09-04 2009-03-05 Dyson Technology Limited Fan
US8764412B2 (en) 2007-09-04 2014-07-01 Dyson Technology Limited Fan
US9249810B2 (en) 2007-09-04 2016-02-02 Dyson Technology Limited Fan
US8403650B2 (en) 2007-09-04 2013-03-26 Dyson Technology Limited Fan
US8046989B2 (en) 2007-11-14 2011-11-01 Paccar Inc Cooling device for high temperature exhaust
US20090120066A1 (en) * 2007-11-14 2009-05-14 Paccar Inc. Cooling device for high temperature exhaust
US7833301B2 (en) 2008-05-30 2010-11-16 Deere & Company Engine exhaust cooler and air pre-cleaner aspirator
US20090293836A1 (en) * 2008-05-30 2009-12-03 Schindler Rodney A Engine exhaust cooler and air pre-cleaner aspirator
US8348629B2 (en) 2008-09-23 2013-01-08 Dyston Technology Limited Fan
US7931449B2 (en) * 2008-09-23 2011-04-26 Dyson Technology Limited Fan
US20110164959A1 (en) * 2008-09-23 2011-07-07 Dyson Technology Limited Fan
US20100254800A1 (en) * 2008-09-23 2010-10-07 Dyson Technology Limited Fan
US10145388B2 (en) 2008-10-25 2018-12-04 Dyson Technology Limited Fan with a filter
US9816531B2 (en) 2008-10-25 2017-11-14 Dyson Technology Limited Fan utilizing coanda surface
US8092166B2 (en) 2008-12-11 2012-01-10 Dyson Technology Limited Fan
US20100150699A1 (en) * 2008-12-11 2010-06-17 Dyson Technology Limited Fan
US8932028B2 (en) 2009-03-04 2015-01-13 Dyson Technology Limited Fan assembly
US20100226763A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US7972111B2 (en) 2009-03-04 2011-07-05 Dyson Technology Limited Fan assembly
US20110223014A1 (en) * 2009-03-04 2011-09-15 Dyson Technology Limited Fan assembly
US10221860B2 (en) 2009-03-04 2019-03-05 Dyson Technology Limited Fan assembly
US20100226749A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226801A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8197226B2 (en) 2009-03-04 2012-06-12 Dyson Technology Limited Fan assembly
US8246317B2 (en) 2009-03-04 2012-08-21 Dyson Technology Limited Fan assembly
US20100225012A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Humidifying apparatus
US8308432B2 (en) 2009-03-04 2012-11-13 Dyson Technology Limited Fan assembly
US8348596B2 (en) 2009-03-04 2013-01-08 Dyson Technology Limited Fan assembly
US8348597B2 (en) 2009-03-04 2013-01-08 Dyson Technology Limited Fan assembly
US20100226787A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8356804B2 (en) 2009-03-04 2013-01-22 Dyson Technology Limited Humidifying apparatus
US10006657B2 (en) 2009-03-04 2018-06-26 Dyson Technology Limited Fan assembly
US8403640B2 (en) 2009-03-04 2013-03-26 Dyson Technology Limited Fan assembly
US20100226769A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8408869B2 (en) 2009-03-04 2013-04-02 Dyson Technology Limited Fan assembly
US8430624B2 (en) 2009-03-04 2013-04-30 Dyson Technology Limited Fan assembly
US9127689B2 (en) 2009-03-04 2015-09-08 Dyson Technology Limited Fan assembly
US8469660B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
US8469658B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan
US8469655B2 (en) 2009-03-04 2013-06-25 Dyson Technology Limited Fan assembly
US8529203B2 (en) 2009-03-04 2013-09-10 Dyson Technology Limited Fan assembly
US9599368B2 (en) 2009-03-04 2017-03-21 Dyson Technology Limited Nozzle for bladeless fan assembly with heater
US8613601B2 (en) 2009-03-04 2013-12-24 Dyson Technology Limited Fan assembly
US20100226752A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8684687B2 (en) 2009-03-04 2014-04-01 Dyson Technology Limited Fan assembly
US20100226751A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8714937B2 (en) 2009-03-04 2014-05-06 Dyson Technology Limited Fan assembly
US8721286B2 (en) 2009-03-04 2014-05-13 Dyson Technology Limited Fan assembly
US9513028B2 (en) 2009-03-04 2016-12-06 Dyson Technology Limited Fan assembly
US20100226758A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226754A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US20100226797A1 (en) * 2009-03-04 2010-09-09 Dyson Technology Limited Fan assembly
US8784071B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Fan assembly
US8783663B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Humidifying apparatus
US8708650B2 (en) 2009-03-04 2014-04-29 Dyson Technology Limited Fan assembly
US8784049B2 (en) 2009-03-04 2014-07-22 Dyson Technology Limited Fan
US8454322B2 (en) 2009-11-06 2013-06-04 Dyson Technology Limited Fan having a magnetically attached remote control
US20110110805A1 (en) * 2009-11-06 2011-05-12 Dyson Technology Limited Fan
US9004878B2 (en) 2009-11-06 2015-04-14 Dyson Technology Limited Fan having a magnetically attached remote control
US8770946B2 (en) 2010-03-23 2014-07-08 Dyson Technology Limited Accessory for a fan
US8882451B2 (en) 2010-03-23 2014-11-11 Dyson Technology Limited Fan
US20110236229A1 (en) * 2010-03-23 2011-09-29 Dyson Technology Limited Accessory for a fan
US9011116B2 (en) 2010-05-27 2015-04-21 Dyson Technology Limited Device for blowing air by means of a nozzle assembly
US8873940B2 (en) 2010-08-06 2014-10-28 Dyson Technology Limited Fan assembly
US8734094B2 (en) 2010-08-06 2014-05-27 Dyson Technology Limited Fan assembly
US8366403B2 (en) 2010-08-06 2013-02-05 Dyson Technology Limited Fan assembly
US8894354B2 (en) 2010-09-07 2014-11-25 Dyson Technology Limited Fan
US9745988B2 (en) 2010-09-07 2017-08-29 Dyson Technology Limited Fan
US10100836B2 (en) 2010-10-13 2018-10-16 Dyson Technology Limited Fan assembly
US8967979B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US8967980B2 (en) 2010-10-18 2015-03-03 Dyson Technology Limited Fan assembly
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
US9745996B2 (en) 2010-12-02 2017-08-29 Dyson Technology Limited Fan
US9458853B2 (en) 2011-07-27 2016-10-04 Dyson Technology Limited Fan assembly
US9291361B2 (en) 2011-07-27 2016-03-22 Dyson Technology Limited Fan assembly
US9335064B2 (en) 2011-07-27 2016-05-10 Dyson Technology Limited Fan assembly
US9127855B2 (en) 2011-07-27 2015-09-08 Dyson Technology Limited Fan assembly
US10094581B2 (en) 2011-07-27 2018-10-09 Dyson Technology Limited Fan assembly
JP2014521863A (en) * 2011-07-29 2014-08-28 ルノー・トラックス Vehicle equipped with an exhaust system and such an exhaust device
US9745981B2 (en) 2011-11-11 2017-08-29 Dyson Technology Limited Fan assembly
US10094392B2 (en) 2011-11-24 2018-10-09 Dyson Technology Limited Fan assembly
US9328739B2 (en) 2012-01-19 2016-05-03 Dyson Technology Limited Fan
US9283573B2 (en) 2012-02-06 2016-03-15 Dyson Technology Limited Fan assembly
US9249809B2 (en) 2012-02-06 2016-02-02 Dyson Technology Limited Fan
US9151299B2 (en) 2012-02-06 2015-10-06 Dyson Technology Limited Fan
US9797613B2 (en) 2012-03-06 2017-10-24 Dyson Technology Limited Humidifying apparatus
US9366449B2 (en) 2012-03-06 2016-06-14 Dyson Technology Limited Humidifying apparatus
US9752789B2 (en) 2012-03-06 2017-09-05 Dyson Technology Limited Humidifying apparatus
US9927136B2 (en) 2012-03-06 2018-03-27 Dyson Technology Limited Fan assembly
US10145583B2 (en) 2012-04-04 2018-12-04 Dyson Technology Limited Heating apparatus
US9151250B2 (en) * 2012-04-05 2015-10-06 Donald B. Scoggins Fluid cooling system
US20130263832A1 (en) * 2012-04-05 2013-10-10 Donald B. Scoggins Fluid Cooling System
US9822778B2 (en) 2012-04-19 2017-11-21 Dyson Technology Limited Fan assembly
US9568021B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9568006B2 (en) 2012-05-16 2017-02-14 Dyson Technology Limited Fan
US9732763B2 (en) 2012-07-11 2017-08-15 Dyson Technology Limited Fan assembly
USD746966S1 (en) 2013-01-18 2016-01-05 Dyson Technology Limited Humidifier
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
USD747450S1 (en) 2013-01-18 2016-01-12 Dyson Technology Limited Humidifier
USD746425S1 (en) 2013-01-18 2015-12-29 Dyson Technology Limited Humidifier
US9797612B2 (en) 2013-01-29 2017-10-24 Dyson Technology Limited Fan assembly
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729374S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729376S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
USD729925S1 (en) 2013-03-07 2015-05-19 Dyson Technology Limited Fan
USD729373S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
US9797414B2 (en) 2013-07-09 2017-10-24 Dyson Technology Limited Fan assembly
USD728770S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
USD728092S1 (en) 2013-08-01 2015-04-28 Dyson Technology Limited Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
US9410711B2 (en) 2013-09-26 2016-08-09 Dyson Technology Limited Fan assembly
US9982677B2 (en) 2014-07-29 2018-05-29 Dyson Technology Limited Fan assembly
US9903602B2 (en) 2014-07-29 2018-02-27 Dyson Technology Limited Humidifying apparatus
US9599356B2 (en) 2014-07-29 2017-03-21 Dyson Technology Limited Humidifying apparatus
US10207812B2 (en) 2015-09-02 2019-02-19 Jetoptera, Inc. Fluidic propulsive system and thrust and lift generator for aerial vehicles
US10001048B2 (en) 2016-03-21 2018-06-19 Paccar Inc Cyclonic thermal diffuser and method
US10240501B2 (en) 2016-04-12 2019-03-26 Deere & Company Venturi exhaust gas cooler
EP3232027A1 (en) 2016-04-12 2017-10-18 Deere & Company Venturi exhaust gas cooler
WO2018031487A1 (en) * 2016-08-08 2018-02-15 Jetoptera, Inc. Internal combustion engine exhaust pipe fluidic purger system

Similar Documents

Publication Publication Date Title
US3418485A (en) Enclosure for gas turbine engine electric generator set
US3270495A (en) Apparatus for controlling speed and vibration of engine turbochargers
US3227240A (en) Air mingling sound suppressor for jet engine
US4265332A (en) Heat extracting muffler system
US4887424A (en) Propfan turbine engine
US4068612A (en) Turbocharger housing construction for marine turbocharger and device for turbocharging a marine engine
US6942181B2 (en) Passive cooling system for auxiliary power unit installation
US4147230A (en) Combination spark arrestor and aspirating muffler
US5427502A (en) Fan shroud aspirator
US4566852A (en) Axial fan arrangement
US2239549A (en) Silencing device for pulsating gases
US3937192A (en) Ejector fan shroud arrangement
US6832665B2 (en) Exhaust gas muffler
US8046989B2 (en) Cooling device for high temperature exhaust
KR100506467B1 (en) Reciprocating piston internal combustion engine
US4583367A (en) Exhaust gas turbocharger
SU546294A3 (en) The discharge system of an internal combustion engine
US4213414A (en) Engine exhaust means for motor propelled boats
US6220387B1 (en) Exhaust muffler
US3277876A (en) Crankcase ventilation system for an internal combustion system
US2877860A (en) Apertured pliable resilient damper wall silencer
US4653275A (en) Exhaust gas turbocharger for an internal-combustion engine
GB1459591A (en) Combustion equipment
US6261333B1 (en) Air filter for an internal combustion engine having a primary air region and a secondary air region
JP2002512338A (en) Turbine engines for guiding p3 air cooled in the rear cavity of the impeller

Legal Events

Date Code Title Description
AS Assignment

Owner name: ATLAS COPCO CONSTRUCTION AND MINING HOLDING AB, A

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PACCAR INC.;REEL/FRAME:005362/0935

Effective date: 19891004