US3402653A - Ventilation exhaust grille - Google Patents

Ventilation exhaust grille Download PDF

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Publication number
US3402653A
US3402653A US554732A US55473266A US3402653A US 3402653 A US3402653 A US 3402653A US 554732 A US554732 A US 554732A US 55473266 A US55473266 A US 55473266A US 3402653 A US3402653 A US 3402653A
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United States
Prior art keywords
ribs
grille
section
row
air
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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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US554732A
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English (en)
Inventor
Lex Eduard
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Individual
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Individual
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Publication date
Priority claimed from DEL51091A external-priority patent/DE1248086B/de
Application filed by Individual filed Critical Individual
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Publication of US3402653A publication Critical patent/US3402653A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • 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
    • Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Definitions

  • locomotive manufac turers and railroad companies and other locomotive-using enterprises are quite interested in getting a useful and eflicient exhaust ventilation grille which at the same time may have a similar outside appearance as the multiple nozzle ventilation grilles. It is indeed not desirable or even tolerable to -put into a locomotive, which already has a distinct type of ventilation grille having vertically arranged angle bars, further exhaust ventilation devices which deviate in shape from the former ones.
  • An object of the present invention is to provide an air exhaust ventilation grille of the type described which is capable of removing excessively warm air reliably and without mechanical aid means from the interior of the vehicle.
  • Another object of the present invention is to lprovide an air exhaust grille which resembles closely or even is identical to the conventionally used multiple nozzle ventilation grilles in their external appearance.
  • the grille having two rows of per se known substantially vertically-staggered ribs arranged in a frame comprises specially shaped ribs having in the first row a bell-shaped cross-section and having in the second row a double bowshaped cross-section which is open to the outside, whereby both sections have reversely curved ends.
  • the curvature of the bell shape of the ribs of the first row insures that the air flow resulting from the movement of the vehicle is intercepted and is deflected into the interior of the vehicle body without a substantial cavitation of the flow.
  • the llow is outwardly deflected again after it had flowed along half the length of a lee-side flank of a rib of the first row, following a half-circle path hitting the Windward flank of the next following rib in the first row, whereby the aerodynamically favorablybuilt shape causes a further and accelerated deflection towards the outside.
  • FIG. 1 illustrates a side view of a locomotive fitted with ventilation grilles including those according to the in- Vention;
  • FIG. 2 is a front view of a ventilation grille according to the invention.
  • FIG. 3 is a vertical section -along the line C-D Of FIG. 2 of a ventilation grille to be mounted vertically;
  • FIG. 3a is a vertical section through a ventilation grille similar to FIG. 3, to be mounted at an angle;
  • FIG. 4 is a horizontal section along the line A-B of FIG. 2 of a ventilation grille comprising two rows of ribs;
  • FIG. 4a is a horizontal section similar to FIG. 4 of a grille comprising three rows of ribs;
  • FIG. is a cross-section of a rib of the first row of FIG. 4;
  • FIG. 6 is a cross-section of a rib of the second row of FIG. 4.
  • FIG. 7 shows a graph of the exhaust Ventilating capacity of the device.
  • FIG. 1 a locomotive 1 which is equipped with multiple nozzle ventilation grilles 2 in the vertical side walls, having vertically arranged angle ybar ribs for the ventilation of the engine and with exhaust ventilation grilles 3 according to this invention in the curved roof.
  • the ribs 4 of the first row (FIGS. 4 and 5) have a ⁇ bell-shaped cross-section (FIG. 5) with ends 5 which have a reverse curvature so that the entire crosssection resembles a sine graph extending by a certain amount beyond 360.
  • the cross-section has been found to be particularly advantageous, for example, the spacing a to be approximately 42 mm., the amplitude b to be approximately 28 mm., a total length of the wave c to be approximately 50 mm. and a space between the ribs to be approximately 30 mm.
  • the ribs 6 of the second row have the cross-section as shown in FIG. 6.
  • This cross-section substantially consists of two adjacent arches having approximate semicircular or slightly spiral shapes whereby the radii of curvature increase from to 20-30 mm. towards the point 7 where the arches meet.
  • the free ends 8 are inwardly curved parallel to the direction of the fiow of the air and serve the purpose of guiding the air ow.
  • the total width d of the cross-section is preferably approximately 60 mm., the depth e of the arch is approximately mm. and the length of the curved end 8 is approximately 7 mrn.
  • Two rows of ribs are generally sufficient for a grille in a vertical wall, but in case of grille located at an angle, further ribs 9 are required which have an angular shape (FIG. 4a). These additional ribs are arranged behind the second row and are in line with the same.
  • the angle of the shape of ribs 9 is substantially between 90 and 110, preferably 105. All the rows of the ribs are placed in an outwardly open box or container 10.
  • a frame is formed by its top and side walls 11 which are arranged perpendicularly to the rear wall 12, and by its bottom or Hoor 13.
  • the oor 13 in a vertical grille is perpendicular to rear wall 12, but in a grille located at an angle, the oor 14 is arranged at a corresponding angle so that any water may run off to the right (FIG. 3a).
  • IRear wall 12 has a large intake aperture 15 surrounded by an assembly frame 12' for side walls 11 and floor 13.
  • Assembly frame 12 is deeper at the bottom part 12a than on the other three sides, and it is bent downwards and inwards at 16 towards the apex of ribs 9 to insure that water does not run through into the interior of the vehicle.
  • the ribs are welded to the box ⁇ by side walls 11 and floor 13.
  • the outside of assembly frame 12' is lbent back for forming of a U-shaped supporting border 17 which at the same time serves for holding a rubber gasket 18 which in turn is engaged by a similarly U-shaped supporting border 19 of the vehicle wall.
  • the mounting of the grille is both resilient and waterproof.
  • the crests 20 of ribs 4 having the bell-shaped cross-section are arranged ush with the external edge 21 of box 10, anu inside crests 20 are drained holes 22 for water which might be collected behind the ribs.
  • Outer assembly frame 12, supporting borders 17 and 19 also serve as water traps and drain channels.
  • FIG. 7 the exhausting Ventilating capacity of the grille according to the invention is plotted in a graph in m.3/sec. per m.2 of the face area for various vehicle speeds.
  • the graph has been obtained from tests on a test stand.
  • the air exhaust capacity increases with the speed of the vehicle, eventually reaching 0.46 m.3/sec. per l m.2 face area at a vehicle speed of km./h.
  • An exhaust ventilation grille for vehicles for moving air out from the interior of said vehicles comprising a frame, an outer and an inner row of substantially vertical ribs, said ribs immovably arranged in staggered relation in said frame, said ribs of said outer row having a substantially bell-shaped cross-section, the crest of said cross-section pointing to the outside, the open ends of said cross-section being reversely curved and positioned at a distance behind the level of said crest, and said ribs 0f said inner row having a substantially doublebow-shaped cross-section open to the outside and having the ends of said double-bow-shaped cross-section bent toward the middle of said double-bow on the open side thereof, said bent ends running substantially parallel to ⁇ the flow of said air.
  • An exhaust ventilation grille for vehicles for moving air out from the interior of said vehicles comprising a frame, an outwardly open box structure surrounding said frame, an outer and an inner row of substantially vertical ribs, and a third row of ribs, said ribs of said outer, inner and third rows immovably arranged in staggered relation in said frame, said ribs of said outer row having a substantially bell-shaped cross-section, the crest of said cross-section pointing to the outside, the open ends of said cross-section Abeing reversely curved, said Iribs of said inner row having a substantially doublebow-shaped cross-section open to the outside and having the ends of said bow-shaped cross-section reversely bent toward the middle of said double bow, said bent ends running substantially parallel to the ow of said air, said ribs of said third row having an angle cross-section, said third row located behind and parallel with said inner row of ribs, the angle of said angle cross-section being substantially between 95 and 110, and said box having an outer edge flush with said crests of said bell

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Air-Conditioning For Vehicles (AREA)
US554732A 1965-07-09 1966-06-02 Ventilation exhaust grille Expired - Lifetime US3402653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL51091A DE1248086B (de) 1965-07-09 1965-07-09 Entlueftungsgitter fuer Fahrzeuge, insbesondere Schienenfahrzeuge

Publications (1)

Publication Number Publication Date
US3402653A true US3402653A (en) 1968-09-24

Family

ID=7273838

Family Applications (1)

Application Number Title Priority Date Filing Date
US554732A Expired - Lifetime US3402653A (en) 1965-07-09 1966-06-02 Ventilation exhaust grille

Country Status (7)

Country Link
US (1) US3402653A (enrdf_load_stackoverflow)
AT (1) AT260988B (enrdf_load_stackoverflow)
BE (1) BE680401A (enrdf_load_stackoverflow)
CH (1) CH431600A (enrdf_load_stackoverflow)
GB (1) GB1108094A (enrdf_load_stackoverflow)
NL (1) NL6601031A (enrdf_load_stackoverflow)
SE (1) SE350735B (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012519824A (ja) * 2009-03-03 2012-08-30 マンターズ コーポレイション 直接強制通風冷却器／冷却塔及びそのための集液器
US10107001B2 (en) 2014-03-28 2018-10-23 Syntech Towers, L.L.C. CMU cooling tower and method of construction
US20190373977A1 (en) * 2018-05-30 2019-12-12 Paulson Manufacturing Corporation Arc-flash protective apparatus
US10852079B2 (en) 2017-07-24 2020-12-01 Harold D. Curtis Apparatus for cooling liquid and collection assembly therefor
US11408636B2 (en) * 2017-02-17 2022-08-09 Gree Electric Appliances, Inc. Of Zhuhai Air guide grille, air inlet panel and air conditioner
US11609051B2 (en) 2020-04-13 2023-03-21 Harold D. Revocable Trust Apparatus for cooling liquid and collection assembly therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3811354A1 (de) * 1988-04-02 1989-10-19 Krapf & Lex Lueftungsgitter fuer schraeganordnung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL68806C (enrdf_load_stackoverflow) * 1947-01-09
FR750567A (fr) * 1933-02-11 1933-08-12 Lanterne pour l'aspiration naturelle forcée des fumées et utilisations diverses
FR835435A (fr) * 1938-03-18 1938-12-21 Chanard A Aspirateur statique pour cheminées, conduits de ventilation, et autres
US2295669A (en) * 1940-10-22 1942-09-15 Charles H Laws Exhauster
US2717547A (en) * 1952-01-12 1955-09-13 Grenzebach Vent cap
US2990766A (en) * 1958-07-07 1961-07-04 Lex Ventilator grating
US3267834A (en) * 1963-09-16 1966-08-23 Reynolds Metals Co Ventilating system including louver sheet members

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR750567A (fr) * 1933-02-11 1933-08-12 Lanterne pour l'aspiration naturelle forcée des fumées et utilisations diverses
FR835435A (fr) * 1938-03-18 1938-12-21 Chanard A Aspirateur statique pour cheminées, conduits de ventilation, et autres
US2295669A (en) * 1940-10-22 1942-09-15 Charles H Laws Exhauster
NL68806C (enrdf_load_stackoverflow) * 1947-01-09
US2717547A (en) * 1952-01-12 1955-09-13 Grenzebach Vent cap
US2990766A (en) * 1958-07-07 1961-07-04 Lex Ventilator grating
US3267834A (en) * 1963-09-16 1966-08-23 Reynolds Metals Co Ventilating system including louver sheet members

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012519824A (ja) * 2009-03-03 2012-08-30 マンターズ コーポレイション 直接強制通風冷却器／冷却塔及びそのための集液器
US9033318B2 (en) 2009-03-03 2015-05-19 Munters Corporation Direct forced draft fluid cooler/cooling tower and liquid collector therefor
US9562729B2 (en) 2009-03-03 2017-02-07 Munters Corporation Direct forced draft fluid cooler/cooling tower and liquid collector therefor
US9644904B2 (en) 2009-03-03 2017-05-09 Syntech Towers, LLC Direct forced draft fluid cooler/cooling tower and liquid collector therefor
US10107001B2 (en) 2014-03-28 2018-10-23 Syntech Towers, L.L.C. CMU cooling tower and method of construction
US11408636B2 (en) * 2017-02-17 2022-08-09 Gree Electric Appliances, Inc. Of Zhuhai Air guide grille, air inlet panel and air conditioner
US10852079B2 (en) 2017-07-24 2020-12-01 Harold D. Curtis Apparatus for cooling liquid and collection assembly therefor
US20190373977A1 (en) * 2018-05-30 2019-12-12 Paulson Manufacturing Corporation Arc-flash protective apparatus
US12396510B2 (en) 2018-05-30 2025-08-26 Paulson Manufacturing Corporation Blackbody radiation shield protective apparatus
US11609051B2 (en) 2020-04-13 2023-03-21 Harold D. Revocable Trust Apparatus for cooling liquid and collection assembly therefor

Also Published As

Publication number Publication date
NL6601031A (enrdf_load_stackoverflow) 1967-01-10
SE350735B (enrdf_load_stackoverflow) 1972-11-06
CH431600A (de) 1967-03-15
AT260988B (de) 1968-04-10
BE680401A (enrdf_load_stackoverflow) 1966-10-17
GB1108094A (en) 1968-04-03

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