GB783757A - Improvements relating to ventilation systems for motor vehicles - Google Patents

Improvements relating to ventilation systems for motor vehicles

Info

Publication number
GB783757A
GB783757A GB5868/56D GB586856D GB783757A GB 783757 A GB783757 A GB 783757A GB 5868/56 D GB5868/56 D GB 5868/56D GB 586856 D GB586856 D GB 586856D GB 783757 A GB783757 A GB 783757A
Authority
GB
United Kingdom
Prior art keywords
arm
speed
fan
motor
thrust pressure
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
Application number
GB5868/56D
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.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
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 Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB783757A publication Critical patent/GB783757A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
    • B60H1/00814—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation
    • B60H1/00821—Control systems or circuits characterised by their output, for controlling particular components of the heating, cooling or ventilating installation the components being ventilating, air admitting or air distributing devices
    • B60H1/00828—Ventilators, e.g. speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)

Abstract

783,757. Ventilating vehicles. DAIMLERBENZ AKT.-GES. Feb. 24, 1956 [Feb. 25, 1955], No. 5865/56. Class 137 [Also in Group XXXVII] The air flow into a ventilating duct due to forward motion of a vehicle is supplemented by an electric fan, control means, responsive to thrust pressure or vehicle speed, being provided for varying the speed of the fan from a maximum when the thrust pressure or vehicle speed is zero, to zero when the thrust pressure or speed increases to a maximum. If the vehicle speed or thrust pressure rises unduly, the fan may be reversed. An inlet duct 2, 3, leading to the interior 5 of the vehicle, is provided with a fan 1, driven by an electric motor 6, and may enclose a heat exchanger 4. The fan motor 6 is controlled by a manual switch 28 and a speed-regulating and reversing switch 11 which has two resistances 23, 25 separated at 24. The rheostat arm 10 moves with, but is insulated from, an arm 17 which sweeps over two sets of contacts 18, 19 and 26, 27 connected with the motor terminals 8 and 7 respectively, the arrangement being such that as the arm 10 is swung counterclockwise the motor speed falls from a maximum when the arm is in contact with the stop 13, to zero when the arm is in the neutral position 24. Further movement of the arm 10 produces reverse rotation of the motor at a speed rising to half its maximum speed in forward running when the stop 14 is reached. The arm 10 is positioned by means controlled by the thrust pressure, or by a centrifugal governor. In another embodiment, the fan has a constant direction motor, controlled by a rheostat arm which is moved, as the car speed increases, to slow up, and eventually to stop, the fan. The rheostat arm is connected, through a lost-motion device, to a valve pivoted in the air duct so that further increase in the car speed moves the valve to restrict, and ultimately to close, the duct.
GB5868/56D 1955-02-25 1956-02-24 Improvements relating to ventilation systems for motor vehicles Expired GB783757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE783757X 1955-02-25

Publications (1)

Publication Number Publication Date
GB783757A true GB783757A (en) 1957-09-25

Family

ID=6698027

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5868/56D Expired GB783757A (en) 1955-02-25 1956-02-24 Improvements relating to ventilation systems for motor vehicles

Country Status (1)

Country Link
GB (1) GB783757A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3028800A (en) * 1959-07-17 1962-04-10 Richard A Anderson Automatic airflow control
US3052175A (en) * 1958-10-08 1962-09-04 Ford Motor Co Electrical system
US3075449A (en) * 1959-07-17 1963-01-29 Int Harvester Co Blower control means for motor vehicle heating and ventilating systems
DE2817297A1 (en) * 1978-04-20 1979-10-31 Rockwell Golde Gmbh ARRANGEMENT FOR GENERATING POSITIONING MOVEMENTS ON VEHICLE VENTILATION DEVICES
DE3134515A1 (en) * 1981-09-01 1983-03-17 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen "SLIDE VENTILATION WITH A MOTOR-DRIVEN FAN"

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3052175A (en) * 1958-10-08 1962-09-04 Ford Motor Co Electrical system
US3028800A (en) * 1959-07-17 1962-04-10 Richard A Anderson Automatic airflow control
US3075449A (en) * 1959-07-17 1963-01-29 Int Harvester Co Blower control means for motor vehicle heating and ventilating systems
DE2817297A1 (en) * 1978-04-20 1979-10-31 Rockwell Golde Gmbh ARRANGEMENT FOR GENERATING POSITIONING MOVEMENTS ON VEHICLE VENTILATION DEVICES
DE3134515A1 (en) * 1981-09-01 1983-03-17 Gretsch-Unitas Gmbh Baubeschlagfabrik, 7257 Ditzingen "SLIDE VENTILATION WITH A MOTOR-DRIVEN FAN"
EP0074486A1 (en) * 1981-09-01 1983-03-23 Gretsch-Unitas GmbH Baubeschläge Slide plate ventilation with a fan driven by a motor

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