Motion Induced Patents (Class 181/263)
  • Patent number: 11952928
    Abstract: An exhaust system with a multipiece heat shield for a work vehicle includes a first shield part and a second shield part. The first shield part surrounds an aftertreatment unit for aftertreating exhaust gases. The first shield part extends in an axial direction. The second shield part surrounds an exhaust tailpipe with radial spacing between the second shield part and the exhaust tailpipe. The second shield extends in the axial direction from the first shield part, wherein a radial gap between the first and second shield parts is sealed by a seal.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: April 9, 2024
    Assignee: DEERE & COMPANY
    Inventors: Thorsten Thomassik, Peter Kuegler, Robert Kuczkowski, Sathish Thirumalai, Johanna Faltin
  • Patent number: 11732633
    Abstract: An exhaust discharge system and method of assembling is disclosed. The exhaust discharge system may comprises an ejector tube and an exhaust stack. The ejector tube includes an outlet having an outlet cross-section. The ejector tube is configured to convey treated exhaust to the outlet. The outlet cross-section is oriented at an outlet angle to a first horizontal plane. The exhaust stack includes a first conduit and a second conduit. The second conduit includes an exit port. The exit-port cross-section is oblong in shape.
    Type: Grant
    Filed: January 4, 2022
    Date of Patent: August 22, 2023
    Assignee: Caterpillar Inc.
    Inventors: Saad Hasan, Gerald W. Gavin, Daniel Allen Hatfield, Jingshu Wu
  • Patent number: 11464925
    Abstract: A positive air pressure delivery device includes a housing having an inhalation inlet, an inhalation outlet, and an interior cavity in fluid communication with the inhalation inlet and outlet. A pressurized fluid inlet includes an outlet orifice in fluid communication with the interior cavity between the inhalation inlet and outlet. A sound reducer baffle has a convex dome surface positioned downstream of and facing the outlet orifice in a spaced apart relationship therewith. One embodiment of the housings includes a body, an end cap and a baffle insert. In various embodiments, the positive air pressure delivery device may be used in combination with other therapy devices, including an OPEP and pressure indicator. A kit and method of using the device are also provided.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: October 11, 2022
    Assignee: TRUDELL MEDICAL INTERNATIONAL
    Inventors: Neritan Alizoti, Luke Kilroy, Adam Meyer, Andreas Rifani
  • Patent number: 11326502
    Abstract: Provided is an exhaust fumes reduction device for an internal combustion engine. The device reduces the generation of exhaust fumes and improves output and fuel efficiency by smoothing the discharge flow of exhaust gas in a state additionally mounted at the end of an exhaust line of an internal combustion engine. The exhaust fumes reduction device includes; a housing pipe connected to the end of the exhaust port to discharge exhaust gas; a vortex pipe mounted inside the housing pipe to increase the speed of the exhaust gas introduced into the housing pipe and discharge the exhaust gas spirally; and an external pipe mounted on the outside of the housing pipe and in communication with the housing pipe to allow the outside air to flow in and to assist the smooth discharge of exhaust gas discharged to the housing pipe.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: May 10, 2022
    Inventor: Geum Pyo Hong
  • Patent number: 9726125
    Abstract: A variable noise attenuation element is disclosed that comprises a tube, at least one valve seat, at least one valve body and a wire connected to the valve body. The tube has an overall length that defines a first effective length for noise attenuation. The valve seat is disposed in the tube. Retraction of the wire brings the valve body into engagement with the valve seat to selectively define a second effective length of the tube that is less than the overall length.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: August 8, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Jose Arteaga, Suman Mishra, Lloyd Anthony Bozzi
  • Patent number: 9581064
    Abstract: A device for use in a truck for lowering the temperature of exhaust gas of a combustion engine has a diffuser 1, which is provided with a cylindrical housing 3 provided with an inlet opening 5 in an end wall 7 and an elongated axially extending outlet opening 9 in the cylinder wall. The device furthermore has a bent guide plate 25 which extends from the outlet opening 9, so that, as a result of the Coanda effect, the hot exhaust gas is diverted along the plate and the jet widens, so that a better mixing with the ambient air, and hence greater cooling, takes place.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: February 28, 2017
    Assignee: DAF Trucks N.V.
    Inventors: Franciscus Thomas Everardus Janssen, Josef Saberi
  • Patent number: 8434590
    Abstract: The present invention relates to a muffler (8) for an exhaust system (6) of a combustion engine (1), more preferably of a motor vehicle, with a housing (14) comprising at least one exhaust gas inlet (18) and at least one exhaust gas outlet (19), with a pipe arrangement (20) for conducting exhaust gas arranged in the housing (14), which comprises at least one pipe section (21) running within the housing (14), and with a hollow space (22) formed in the housing (14), which is present in addition to the pipe arrangement (20) and is connected to said pipe arrangement at least for the airborne sound transmission.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 7, 2013
    Assignee: J. Eberspaecher GmbH & Co., KG
    Inventor: Mathias Keck
  • Patent number: 8323001
    Abstract: A compression element is provided with a block, a piston, a valve plate arranged in an opening end of a compression chamber and forming a suction hole, a suction valve, a suction muffler forming a sound absorbing space and provided with a communication pipe, and a cylinder head, the communication pipe has a suction muffler outlet portion communicated with the suction hole, is arranged in such a manner as to extend in a vertical direction with respect to a center line passing through the suction hole, and is arranged in such a manner that a part of the suction muffler outlet portion covers a part of the suction hole in the suction muffler outlet portion positioned in a downstream side of refrigerant gas flowing through the communication pipe, in the case of projection the suction muffler outlet portion in a direction of a center line.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 4, 2012
    Assignee: Panasonic Corporation
    Inventors: Kenji Kinjo, Ko Inagaki
  • Patent number: 6050284
    Abstract: An auxiliary exhaust system is provided for releasable attachment to internal combustion engines as are used on electrical generators of recreational vehicles or the like. The auxiliary exhaust system is easy to assemble and disassemble and directs combustion gases which have been cooled by ambient air upwardly to protect the RV occupants and near passersby. The auxiliary exhaust system provides a venturi effect with plastic stack sections which are slidably joined and which are light in weight. Shock cords stabilize the assembled auxiliary exhaust system and prevent noise transmittal from the generator and during adverse weather conditions such as high winds.
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: April 18, 2000
    Assignee: CAMCO Manufacturing, Inc.
    Inventors: Donald R. Caine, Mark R. Bailey
  • Patent number: 5839473
    Abstract: An auxiliary exhaust system is provided for releasable attachment to internal combustion engines as are used on electrical generators of recreational vehicles or the like. The auxiliary exhaust system is easy to assemble and disassemble and directs combustion gases which have been cooled by ambient air upwardly to protect the RV occupants and near passersby. The auxiliary exhaust system provides a venturi effect with plastic stack sections which are slidably joined and which are light in weight. Shock cords stabilize the assembled auxiliary exhaust system and prevent noise transmittal from the generator and during adverse weather conditions such as high winds.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 24, 1998
    Assignee: CAMCO Manufacturing Inc.
    Inventors: Donald R. Caine, Mark R. Bailey
  • Patent number: 5590524
    Abstract: A damped heat shield for a high temperature portion of a vehicle exhaust system. The heat shield has inner and outer metal layers of substantially different thicknesses and substantially different resonant frequencies, which causes the shield to damp vibrational energy and reduce radiated sound energy and noise. Between the metal layers is a layer of sound and heat shielding material such as aluminum foil or ceramic fiber paper. The metal layers are preferably stainless steel, cold rolled steel, aluminized steel, aluminum-clad steel, or aluminum. If cold rolled steel is used, the exterior of the shield is preferably coated with a corrosion-resistant coating.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: January 7, 1997
    Assignee: Soundwich, Inc.
    Inventors: Dan T. Moore, III, Austin W. Moore, Maurice E. Wheeler
  • Patent number: 5058703
    Abstract: To reduce noise, an automotive exhaust tailpipe has a convoluted surface at or near its outlet to generate pairs of counterrotating axial vortices within the exhaust gases just before or just as the gases exit the tailpipe. The convoluted surface may be the internal surface of the tailpipe, or a thin-walled convoluted member may be disposed within the tailpipe near its outlet end.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: October 22, 1991
    Assignee: United Technologies Corporation
    Inventors: Robert H. Ealba, Robert W. Paterson, Michael J. Werle, Walter M. Presz, Jr.
  • Patent number: 4792014
    Abstract: A tail pipe for drafting an engine exhaust gas includes: a front perforated pipe connected to an engine exhaust silencer or muffler, an outer pipe jacketed outside the front pipe for leading environmental air therein, a central pipe connected on a rear end portion of the front pipe and disposed inside the outer pipe, and plural swirl perforated plates each helically secured between the central pipe and the outer pipe and each swirl plate securing the rear portion of the front pipe between the outer pipe and the central pipe, whereby upon a discharge of an engine exhaust gas, the pressure of a partial exhaust gas stream is reduced by the induced environmental cooling air and the pressure of the remaining gas stream is further reduced since the gas stream is guided through the swirl perforated plates to exert an eddy flow at the pipe exit to strongly suck the exhaust gas outwardly.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: December 20, 1988
    Inventor: Lin Shin-Seng
  • Patent number: 4778029
    Abstract: A noise attenuating tube mounted in an engine compartment air intake hood duct of a motor vehicle to attenuate engine air intake noise in the hood is disclosed.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: October 18, 1988
    Assignee: General Motors Coporation
    Inventor: William F. Thornburgh
  • Patent number: 4766983
    Abstract: A muffler for work vehicle V-type internal combustion engines is disclosed, which is mounted in a horizontal sideway position, with its axis placed perpendicularly with the longitudinal vehicle axis, kept a proper distance from the chassis or vehicle body so that it is disposed in full exposure to the atmosphere for proper cooling. A pair of spaced inlet ports are provided in the muffler, at locations adjacent to opposite ends thereof for receiving the exhaust gases from the engine through a pair of parallely extending, parallel exhaust pipes directly interconnected between the combustion chambers of the two cylinders and the muffler inlet ports, without using the conventional intermediate flexible corrugated connectors.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: August 30, 1988
    Assignee: Kawasaki Jukogyo Kabushiki Kaisha
    Inventors: Shinichi Tamba, Hitomi Miyake, Noboru Fukui
  • Patent number: 4679395
    Abstract: A device which comprises an intake for extraneous air to which can be admixed the waste gas emanating from exhausting pipe in an accelerating cylinder to provide additional energy to drive a vehicle, to provide a noise-muffler function, and to dilute the carbon monoxide (CO) in the waste gas.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: July 14, 1987
    Inventor: A- Lin Ou
  • Patent number: 4616732
    Abstract: A silencing system for exhaust gases from internal combustion engines, comprising an intermediate silencing device for connection to the exhaust manifold of an internal combustion engine, and a final silencing device series connected to the intermediate silencing device, in which the final silencing device comprises, within an envelope, a number of spaced annular members, intersected by radial partition walls, forming series of chambers of different size, which occupy the peripheral portion of the envelope and open towards the axial portion of this latter, leaving this axial portion substantially free for passage of the flow of exhaust gases, and an idle fan is provided for acting onto the passage for the exhaust gases and onto a passage for additional air, which passages join downstream the fan into an exhaust nosepiece. Some annular members are made of a catalytically active material in order to exert a purifying action on the exhaust gases.
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: October 14, 1986
    Assignee: S.I.V. S.p.A.
    Inventor: Luigi Carboni
  • Patent number: 4487289
    Abstract: An exhaust muffler having a protective shield to reduce noise radiation and to decrease the temperature of the exhaust gases being discharged from the muffler. The muffler is composed of an outer body enclosed at its ends by flanges, and an outer insulated shell is spaced outwardly from the body and is connected to the peripheral edges of the flanges. Holes are provided in the flanges which communicate with the space between the shell and the body so that air is drawn by convection through the space between the outer body and the shell. A tubular member is spaced outwardly of the outlet pipe of the muffler and the outer end of the tubular member projects outwardly beyond the outer end of the outlet pipe.
    Type: Grant
    Filed: March 1, 1982
    Date of Patent: December 11, 1984
    Assignee: Nelson Industries, Inc.
    Inventors: Kenneth J. Kicinski, Frederick H. Printiss, Sr., Richard J. Jasensky
  • Patent number: 4390079
    Abstract: A muffler and exhaust extractor especially adapted for internal combustion engine powered vehicles such as over the road diesel tractors. The muffler and exhaust extractor generally stated comprises a pair of spaced curved airfoils for directing the airstream produced by the moving vehicle through an open ended converging-diverging passage to form a low pressure area for gas extraction, and means for mounting the airfoils such that the low pressure area is adjacent to and in communication with the exhaust outlet of the vehicle.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: June 28, 1983
    Inventor: Robert Brill
  • Patent number: 4335575
    Abstract: An exhaust gas pressure reducer for an internal combustion engine which is comprised of a housing having means for attaching the housing to the end of the exhaust pipe. The housing has one or more venturi restrictions and is open at the ends for creating a draft across the end of the exhaust pipe through the venturi and out the opposite open end of the housing. The open exit of the housing reduces pressure at the exit to the venturi assisting drawing exhaust gases from the exhaust pipe.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: June 22, 1982
    Inventor: Basilio Pagliuca
  • Patent number: 4331213
    Abstract: An exhaust gas control system has a guiding pipe with a proximal inlet end for connecting to a distal end of an engine exhaust pipe. An expanding portion of the guiding pipe has a central rearward expanding cone and spiralling blades extending between the cone and the walls of the expanding portion. The expanding portion is followed by an axially decreasing chamber and then an axially increasing chamber to the distal opening. A duct is supported on radial vanes around the latter chambers. The duct has a forward opening slightly rearward of a maximum cross-sectional dimension of the guiding pipe and has an outlet positioned rearward of the distal opening of the guiding pipe.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: May 25, 1982
    Assignee: Mitsuko Leith
    Inventor: Yoshifumi Taniguchi
  • Patent number: 4323139
    Abstract: A device is disclosed for attachment to the tailpipe of an exhaust system comprising a body portion placed around the tailpipe, but spaced apart from the tailpipe, in a manner that air may easily flow between the body portion and the tailpipe when the vehicle is moving in a forward direction, a narrowing portion operative to compress the air flow, and an exhaust discharge portion operative for the exhaust from the tailpipe and the air to be discharged therethrough.
    Type: Grant
    Filed: October 1, 1980
    Date of Patent: April 6, 1982
    Inventor: Nealy B. Baldwin
  • Patent number: 4313523
    Abstract: A method and apparatus are provided for reducing back pressure within an exhaust system for an internal combustion engine by creating a venturi within the exhaust system and forcing air through the venturi to create suction for drawing exhaust gases away from the exhaust system. The exhaust system of a conventional automobile is modified by coupling one end of an air directing pipe to the tailpipe of the automobile near the outlet of the tailpipe and at an acute angle thereto for creating a venturi. Air is forced into the opposite end of the air directing pipe by an air scoop or a fan, and the forced air is directed through the outlet of the tailpipe for providing suction which draws exhaust gases out of the tailpipe.
    Type: Grant
    Filed: June 23, 1980
    Date of Patent: February 2, 1982
    Inventor: Dennis E. Copen
  • Patent number: 4303143
    Abstract: An exhaust gas control system has a proximal end for connection to a distal end of an exhaust pipe and has a first divergent and convergent and second divergent portions. Curved spiralling blades extend around inner walls of the first divergent and convergent portions leaving an open central space about which exhaust gas whirls. The second divergent portion exhausts the swirling gas through a distal opening. A duct surrounds the convergent and second divergent portions and controls flow of ambient air over those portions.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: December 1, 1981
    Assignee: Mitsuko Leith
    Inventor: Yoshifumi Taniguchi
  • Patent number: 4231221
    Abstract: The invention relates to an exhaust silencer for internal combustion engines, particularly for manually operated appliances, in which a reduction of the contact and exhaust gas temperatures in order to prevent fire risks on contact with easily flammable objects, particularly forest fires, during the putting into operation of the manually operated appliance and with the supply of a large quantity of fresh air compared with the quantity of exhaust gas in order to bring about a maximum cooling of the hottest gases and/or the outer walls, is achieved in that the wall of the exhaust silencer shell portion which bounds the cooling pipe on one side, following the final outlet hood facing the pipe output port for deflecting the exhaust gas has a negative angular variation with an angle of approximately 2.degree. to 8.degree. for forming a pure or fluidic logic element.
    Type: Grant
    Filed: June 21, 1978
    Date of Patent: November 4, 1980
    Assignee: Dolmar Maschinenfabrik GmbH & Co.
    Inventors: Manfred Mathner, Peter Thomsen
  • Patent number: 4100994
    Abstract: A silencer quiets the exhaust output from a marine engine by injecting a spray of cooling water into the exhaust passageway to mix with and cool the exhaust gases before output from the passageway. The exhaust passageway preferably enlarges substantially in cross-sectional area in the region where the mixing occurs between the injected water and the exhaust gases for enhancing the cooling effect. An inlet scoop receives water as the boat moves forward, and the water is forced through a line and into the exhaust passageway in a way that breaks the water into drops for contacting and cooling the exhaust gases. A mute that is preferably conical in shape and centered in the exhaust outlet also cooperates to reduce the exhaust noise.
    Type: Grant
    Filed: July 15, 1976
    Date of Patent: July 18, 1978
    Assignee: Penn Yan Boats, Incorporated
    Inventor: Robert B. Stuart