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Device for transmission of the movement to cooling fans of engines

A technology for motor vehicles, motion transmission, applied in the field of fan devices, which can solve problems such as undesired cooling effects

Inactive Publication Date: 2005-09-28
BARUFFALDI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although fulfilling their function, these solutions have disadvantages due to the fact that at low temperatures the fan always rotates, even in the no-load state, due to the disconnection of the electromagnetic clutch and / or auxiliary kinematic transmission, precisely undesired cooling effect, even during the start-up phase of the engine, when it is in fact required that the engine should warm up as quickly as possible

Method used

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  • Device for transmission of the movement to cooling fans of engines
  • Device for transmission of the movement to cooling fans of engines
  • Device for transmission of the movement to cooling fans of engines

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Embodiment Construction

[0021] As shown in Figures 1a, 1b, the means for transmitting motion to a fan 1 mounted on a frame 1a for cooling a motor vehicle is arranged between said fan 1 and a rotor 31 which is connected with a belt ( Not shown) The pulley 3 connected to the drive shaft is integrally formed. In more detail, the fixing bracket consists of a hollow tube 21, one end of which, in the form of a supporting flange 12, is connected to the base 10 of the engine by means of a fixing device 10a; the hollow tube 21 has a bearing 11 keyed on it, and the pulley The integral rotor 31 is mounted on the bearing 11.

[0022] Said rotor 31 forms the rotating element of an electromagnetic clutch 30 formed by a fixed annular electromagnet 32 ​​concentric with the rotor, which is arranged between the rotor and the fixed flange 12 and is electrically connected to a system such as for cooling water temperature thermostat (not shown).

[0023] On the opposite side of the electromagnet 32 ​​with respect to th...

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PUM

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Abstract

Device for transmission of the movement to a fan ( 1 ) for cooling the coolant in a motor vehicle, comprising means ( 21;141;31 a) for supporting the fan ( 1 ) on which the fan ( 1 ) is mounted by means of an idle support ( 1 a), means ( 3 ) for generating the movement, a first electromagnetic clutch ( 30 ), engagement of which produces rotation of the fan ( 1 ) at a number of revolutions equal to that of the movement generating means ( 3 ); also comprising means ( 50;150;250;350;450 ) for stopping rotation of the fan ( 1 ) in its idle condition.

Description

technical field [0001] The invention relates to a device for transmitting motion to a fan for cooling coolant in a motor vehicle, comprising at least one first electromagnetic clutch, and a device for stopping the rotation of the fan in an idling state. Background technique [0002] In the art relating to the cooling of coolant contained in motor vehicle radiators, it is known that air needs to be forced onto said radiator in order to dissipate heat from the liquid to the outside more quickly, said forced air flow being achieved by rotating a fan It is obtained that the fan is usually mounted directly on the drive shaft or on the water pump shaft or on a fixed driven shaft with a pulley which receives motion from a belt driven by the drive shaft. [0003] It is also known that the fan must only rotate when a certain predetermined water temperature is reached, detected by a thermostat that activates an electromagnetic clutch, the closure of which causes the fan to spin. For ...

Claims

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Application Information

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IPC IPC(8): B60K11/00B60K11/04F01P7/04F01P7/08
CPCF16D27/112F16D67/02F01P7/048F01P7/085B60K11/04F16D2121/22B60K11/00F01P7/084
Inventor P·博费利C·贝洛蒂E·德波利
Owner BARUFFALDI