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Method for producing a frame for an engine cooling fan of a motor vehicle

An engine cooling and motor vehicle technology, which is applied in the layout, application, and power plant of the power plant cooling combination, can solve the problems of incomplete utilization and cost reduction, and achieve reliable and reliable methods, cost reduction, and reduction of error sources. Effect

Inactive Publication Date: 2014-06-11
ROBERT BOSCH GMBH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another person is necessary and the potential for cost reduction through injection cycle reduction cannot be fully exploited

Method used

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  • Method for producing a frame for an engine cooling fan of a motor vehicle
  • Method for producing a frame for an engine cooling fan of a motor vehicle
  • Method for producing a frame for an engine cooling fan of a motor vehicle

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Embodiment Construction

[0027] A cooling fan is provided for ensuring sufficient cooling of the internal combustion engine of the motor vehicle during operation formed at the radiator. Cooling fans or cooling air fans usually cover the air intake face of the board heatsink and have an figure 2 The frame 1 partially shown in the middle is provided with fastening elements, not further shown, so that the frame and thus the cooling fan can be fastened to the radiator or body of the motor vehicle. The frame 1 generally has a cover 2 , so that air can flow to the fan blades of the cooling fan only through circular fan openings (not further shown) in the cover 2 . One or more ram air covers 5 can be arranged in the cover 2 of the frame 1 . The ram air flap is movable and is opened by the driving wind and closed again by gravity when the vehicle is stationary. It is thus possible to optimize the cooling of the engine and to carry out thermal management of the engine. The ram air flap 5 opens an additiona...

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Abstract

Equipping engine cooling fans with flaps, in particular ram-air flaps, which are opened by the relative wind and can close again by means of gravity at a vehicle standstill, is known. Until know, it has been common to install such ram-air flaps manually on a frame of the engine cooling fan. However, all of said embodiment concepts require complex motion guidance during the installation in / on the frame. The invention relates to a method for producing a frame (1) for an engine cooling fan of a motor vehicle in order to provide economical automation, the frame being equipped with a flap (5), in particular ram-air flap, and produced by means of injection molding in a tool (16), wherein an articulated connection of the flap (5) to the frame (1) is provided in a joint production step for the frame (1), in which the flap (5) is first prepositioned in the tool (16) for the production of the frame (1) and then provided cavities (10) of the flap (5) are also filled during the production of the frame (1), which cavities form corresponding bearing points (11) for the flap (5) on the frame (1) after the solidification of the plastic and thus enable a movable connection of the flap (5) to the frame (1). The invention is intended for frames having ram-air flaps for engine cooling fans of motor vehicles.

Description

technical field [0001] The invention relates to a method for producing a frame for an engine cooling fan of a motor vehicle, which frame is provided with a cover plate and produced in a tool by means of injection molding. Background technique [0002] It is known to provide engine cooling fans with a flap, in particular a ram air flap, which can be opened by the driving wind and closed again by gravity when the vehicle is stationary. It has hitherto been usual to mount such a ram air cover manually on the frame of the engine cooling fan. For example, the ram air cover can be clamped to the bearing bolts of the frame. Alternatively, the elastic ram air cover can be fastened to the frame via a type of snap connection or plug-in rails. However, all these embodiments require complex movement guidance during assembly in / on the frame. Low-cost automation has not yet been achieved. The assembly of the ram-air cover is usually carried out within the cycle time of the injection m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00B29C45/16B60K11/08
CPCB29C45/1676B29C45/1671B29C45/14754B29L2031/08B29C45/1418B29C2045/14327B29C45/0017B29C45/14467
Inventor A.埃韦特M.利德尔T.黑尔明
Owner ROBERT BOSCH GMBH
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