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Apparatus for driving a fan for cooling coolant in a motor vehicle at three speeds

A fan and speed technology, applied in the control of coolant flow, engine cooling, engine components, etc., can solve problems such as power consumption

Active Publication Date: 2022-07-01
BARUFFALDI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This configuration is disadvantageous both from a structural point of view and due to the fact that when the brake is engaged, power is dissipated in any case due to the resistive torque of the Foucault coupling, thus using energy

Method used

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  • Apparatus for driving a fan for cooling coolant in a motor vehicle at three speeds
  • Apparatus for driving a fan for cooling coolant in a motor vehicle at three speeds

Examples

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Embodiment Construction

[0020] like figure 1 shown in, for the purpose of easier illustration only, and without any limitation, assuming a pair of reference axes in the longitudinal direction X-X (coinciding with the rotational axis of the device) and the transverse / radial direction Y-Y (perpendicular to the first direction), and the front part "A" corresponds to the axial position of the fan and the rear part "P" is opposite to this front part, the device according to the invention for driving and controlling the fan 1 of a motor vehicle is basically include:

[0021] - a fixed axial sleeve 10, which is fixed to the base 11 of the engine by means of screws 11a;

[0022] - fan support 1a;

[0023] - a first electromagnetic coupling 100;

[0024] - a second electromagnetic coupling;

[0025] - Eddy current or Foucault coupling 300.

[0026] In a more detailed and preferred example embodiment:

[0027] The first electromagnetic coupling 100 includes: a first electromagnet 110 fixed on the sleeve ...

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Abstract

The application discloses a device for driving a fan (1) at three speeds for cooling a coolant in a motor vehicle, the device comprising: a fixed axial sleeve (10), the fixed axial sleeve The cartridge is designed to be fastened to the base (11) of the vehicle engine; the fan support (1a) for carrying the fan; the first electromagnetic coupling (100), the first electromagnetic coupling comprising the first stationary electromagnet ( 110) and a first rotor (120); a second electromagnetic coupling (200) comprising a stationary electromagnet (210) mounted on an axial sleeve (10), a second rotor (220) and an armature (240) arranged axially on the opposite side of the second electromagnet (210) with respect to the second rotor (220) and rotating integrally with the rotor (120) of the first coupling; and Eddy current or Foucault coupling (300). The first coupling, the second coupling and the Foucault coupling are arranged between the part (121) for receiving the rotational movement and said fan support (1a) of the fan (1); the first rotor (120) and the second Two rotors (220) are mounted on corresponding bearings (121, 221), which are keyed on the fixed axial sleeve (10); wherein the driving part of the Foucault coupling (300) is mounted on the second rotor (220) , and the driven part of the Foucault coupling is integrated with the support (1a) of the fan (1), therefore, through the Foucault coupling (300), only the electromagnet (210) of the second coupling (200) is energized so that the The fan's support (1a) is rotationally driven at a slower speed than the first rotor (120).

Description

technical field [0001] The present invention relates to a device for driving a fan at three speeds for cooling a coolant in a motor vehicle. Background technique [0002] In the technical field concerning the cooling of coolants contained in radiators of motor vehicles, it is known that it is necessary to force air onto said radiator in order to dissipate the heat away from the liquid as quickly as possible, said forced air flow through Obtained by rotating a fan, usually mounted directly on the engine shaft, or on the shaft of a water pump, or on a fixed driven shaft with a pulley that receives motion from a belt driven through the engine shaft. [0003] It is also known that the fan rotates only when a certain predetermined water temperature is reached, which is detected by a thermostat which operates an electromagnetic clutch, the closing of which causes the fan to rotate. [0004] In more detail, it is required that the motor vehicle fan be able to rotate like this: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P7/08F01P5/04F16D27/01
CPCF01P5/04F01P7/084F16D27/112F16D27/004F16D27/12
Inventor P·博菲里
Owner BARUFFALDI
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