US3494445A - Detoxicating and silencing device - Google Patents

Detoxicating and silencing device Download PDF

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Publication number
US3494445A
US3494445A US651735A US3494445DA US3494445A US 3494445 A US3494445 A US 3494445A US 651735 A US651735 A US 651735A US 3494445D A US3494445D A US 3494445DA US 3494445 A US3494445 A US 3494445A
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United States
Prior art keywords
casing
line
conduit
detoxicating
silencing
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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
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US651735A
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English (en)
Inventor
Walter Ott
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Individual
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Individual
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/086—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling having means to impart a whirling motion to the exhaust gases
    • F01N1/087—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling having means to impart a whirling motion to the exhaust gases using tangential inlets into a circular chamber
    • 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
    • F01N1/14—Silencing apparatus characterised by method of silencing by adding air to exhaust gases
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/05—Exhaust 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
    • 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
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/26—Construction of thermal reactors
    • 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 present invention relates to detoxica'ting and silencing devices primarily for detoxicating and silencing a pulsating flow of generally gaseous materials under elevated pressure, such as the exhaust gases from internal combustion engines.
  • the silencer easing is constructed essentially in the form of a hollow egg with input and output conduits arranged at specified angles so that the exhaust gas stream is formed into a three dimensional spiral having an extraordinarily high vortical speed in the vicinity of the tip of the egg.
  • thermochemical decomposition takes place which at least partially detoxicates the gases.
  • the CO content rose from 8.5% to 12.4% when idling, and from 8.0% to 11.3% when under full load.
  • a device primarily for detoxicating and silencing a pulsating flow of generally gaseous material under elevated pressure, such as the exhaust gases from an internal combustion engine, comprising an elongated casing which is generally bulbous at one end and tapers towards a substantially cylindrical portion at the other end, an input conduit for generally gaseous material communicating substantially tangentially with the interior of said casing at the bulbous end thereof, said cylindrical portion defining an output conduit, wherein, over the region of the casing lying substantially between the input conduit and said other end of the casing, the line of intersection of the casing with any plane including the longitudinal centreline of the casing is a second or higher order or transcendent curve convex towards said centre-line.
  • a particularly effective construction of the device results if said second order curve is part of a hyperbola.
  • said region of the casing is a hollow body of revolution axially symmetrical about the longitudinal centre-line, one said line of intersection serving as the generatrix of the body.
  • a second region of the casing lying substantially between the input conduit and said one end of the casing, i.e. normally the region lying between the boundary of the first region and said one end of the casing.
  • the line of intersection of the casing with any plane including the longitudinal centre-line of the casing is preferably a second order curve concave towards said centre-line.
  • Said second order concave curve may optionally be circular, elliptical, parabolic or ogival.
  • An injector conduit may be provided communicating with the interior of the casing at the bulbous end thereof.
  • a conduit is for the supply of a flow of generally gaseous working materials such as air, steam, oxygen-enriched air or oxygen.
  • This conduit is suitably co-axial with the longitudinal centre-line of the casing.
  • FIG. 1 is a longitudinal section through a detoxicating and silencing device constructed in accordance with the invention.
  • FIG. 2 illustrates the arrangement for a double-piston motor with two opposed cylinders.
  • FIG. 1 there is shown an input conduit for the exhaust gases from an internal combustion engine.
  • the conduit 1 communicates generally tangentially with the interior of a casing 2 through the aperture 3.
  • the axis 44 of the conduit 1 makes an acute angle 7 with a plane marked 5-5 which extends perpendicular to the longitudinal centre-line 66 of the silencer casing 2.
  • the casing 2 is in the form of a hollow hemi-sphere 8 and part of a hollow hyperboloid 9 which is generated as a body of rotation about the axis 6-6 by rotation of the generatrix hyperbola 1t 10 about the axis 66, which is the axis of symmetry.
  • the casing sections 8 and 9 merge with one another at 11 without a step or discontinuity.
  • FIG. 2 there is shown an arrangement of two silencers 15, 16, constructed in accordance with the invention, in conjunction with a double-piston internal combustion engine having a crank casing 17 and cylinders or cylinder rows 18 and 19.
  • the axes of these cylinders are arranged about the crank circle displaced by 180.
  • the centre-lines of the silencers cross so that it is possible to arrange, with relatively little space requirement, for the output conduits 24, 25 for the largely detoxicated exhaust gases to extend in the usual manner.
  • a device primarily for detoxicating and silencing a pulsating flow of generally gaseous material under elevated pressure, such as the exhaust gases from an internal combustion engine, comprising an elongated casing which is generally bulbous at one end and tapers towards a substantially cylindrical portion at the other end, an input conduit for generally gaseous material communicating substantially tangentially with the interior of said casing at the bulbous end thereof, said cylindrical portion defining an output conduit, wherein, over the region of the casing lying substantially between the input conduit'and said other end of the casing, the line of intersection of the casing with any plane including the longitudinal centreline of the casing is a second or higher order or transcendent curve convex towards said centre-line.
  • the casing is a hollow body of revolution axially symmetrical about the longitudinal centre-line, one said line of intersection serving as the generatrix of the body.
  • a device wherein, over a second region of the cavity lying substantially between the input conduit and said one end of the casing, the line of intersection of the casing with any plane including the longitudinal centre-line of the casing is a second order curve concave towards said centre-line.
  • a device according to claim 4 wherein said second order concave curve is part of an ellipse.
  • a device including an injector conduit for the supply of a flow of generally gaseous additional workin g materials, said conduit communicating with the interior of said casing at the bulbous end thereof coaxially with the longitudinal centre-line of the casing.
  • Apparatus primarily for detoxicating and silencing two or more pulsating flows of generally gaseous material under elevated pressure, such as the exhaust gases from a multi-cylinder internal combustion engine having cylinders or rows of cylinders displaced about a crank circle, comprising a plurality of devices, each device being associated with one said displaced cylinder and each device comprising an elongated casing which is generally bulbous at one end and tapers towards a substantially cylindrical portion at the other end, an input conduit for generally gaseous material communicating substantially tangentially with the interior of said casing at the bulbous end thereof, said cylindrical portion defining an output conduit, wherein, over the region of the casing lying substantially between the input conduit and said other end of the casing, the line of intersection of the casing with any plane including the longitudinal centre-line of the casing is a second order curve convex towards said centre-line, and wherein the devices are disposed with their longitudinal centre-lines lying at an angle to one another in spaced planes, the input conduits extending substantially parallel to one

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Silencers (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Treating Waste Gases (AREA)
US651735A 1966-07-19 1967-07-07 Detoxicating and silencing device Expired - Lifetime US3494445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO0011823 1966-07-19

Publications (1)

Publication Number Publication Date
US3494445A true US3494445A (en) 1970-02-10

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Family Applications (1)

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US651735A Expired - Lifetime US3494445A (en) 1966-07-19 1967-07-07 Detoxicating and silencing device

Country Status (8)

Country Link
US (1) US3494445A (de)
CH (1) CH488100A (de)
DE (1) DE1476588A1 (de)
ES (1) ES343101A1 (de)
FR (1) FR1562784A (de)
GB (1) GB1176958A (de)
NL (1) NL6708706A (de)
SE (1) SE319492B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193341A (en) * 1989-06-01 1993-03-16 Hkk Hanseatisches Kreativ Kontor Gesellschaft Fur Entwicklung Und Vertrieb Mbh Arrangement for removing oxidizable or combustible particles from exhaust gases

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US940031A (en) * 1908-12-16 1909-11-16 Sears Roebuck & Company Automobile-engine.
US1217021A (en) * 1916-02-15 1917-02-20 Alexis Lebedeff Silencer for internal-combustion engines.
FR573669A (fr) * 1923-02-22 1924-06-27 Silencieux pour moteurs d'aéronefs
FR592649A (fr) * 1924-11-12 1925-08-06 Silencieux
US1564931A (en) * 1921-08-26 1925-12-08 Boysen Friedrich August Means for the utilization of the energy of the exhaust gases of internal-combustion engines by the striking of said gases
FR639486A (fr) * 1927-08-12 1928-06-22 Pot d'échappement silencieux refroidisseur
US2057304A (en) * 1933-11-08 1936-10-13 Saint-Jacques Eugene Camille Apparatus for regularizing the exhaust of explosion motors
US2370259A (en) * 1941-10-16 1945-02-27 Gen Motors Corp Internal combustion engine exhaust system
US2386305A (en) * 1944-03-14 1945-10-09 Alton D Flickinger Vacuum type exhaust muffler

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US940031A (en) * 1908-12-16 1909-11-16 Sears Roebuck & Company Automobile-engine.
US1217021A (en) * 1916-02-15 1917-02-20 Alexis Lebedeff Silencer for internal-combustion engines.
US1564931A (en) * 1921-08-26 1925-12-08 Boysen Friedrich August Means for the utilization of the energy of the exhaust gases of internal-combustion engines by the striking of said gases
FR573669A (fr) * 1923-02-22 1924-06-27 Silencieux pour moteurs d'aéronefs
FR592649A (fr) * 1924-11-12 1925-08-06 Silencieux
FR639486A (fr) * 1927-08-12 1928-06-22 Pot d'échappement silencieux refroidisseur
US2057304A (en) * 1933-11-08 1936-10-13 Saint-Jacques Eugene Camille Apparatus for regularizing the exhaust of explosion motors
US2370259A (en) * 1941-10-16 1945-02-27 Gen Motors Corp Internal combustion engine exhaust system
US2386305A (en) * 1944-03-14 1945-10-09 Alton D Flickinger Vacuum type exhaust muffler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193341A (en) * 1989-06-01 1993-03-16 Hkk Hanseatisches Kreativ Kontor Gesellschaft Fur Entwicklung Und Vertrieb Mbh Arrangement for removing oxidizable or combustible particles from exhaust gases

Also Published As

Publication number Publication date
ES343101A1 (es) 1968-09-01
GB1176958A (en) 1970-01-07
DE1476588A1 (de) 1969-03-13
FR1562784A (de) 1969-04-11
SE319492B (de) 1970-01-19
NL6708706A (de) 1968-01-22
CH488100A (de) 1970-03-31

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