Compact diagonal fan

a fan and diagonal technology, applied in the direction of machines/engines, stators, liquid fuel engines, etc., can solve the problems that small ventilators are rarely found with diagonal designs, and achieve the effects of reducing rotational speed, reducing noise, and improving air flow
US20050123399A1Inactive Publication Date: 2005-06-09MINEBEA CO LTD
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
MINEBEA CO LTD
Publication Date
2005-06-09
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a diagonal fan having a housing, an impeller driven by an electric motor whose hub together with an air conduction sleeve surrounding the impeller defines an essentially annular flow channel having an air intake opening and an air exit opening. The hub takes the form of a truncated cone that widens towards the air exit opening, the air conduction sleeve being essentially profiled, the electric motor being held in the housing by means of bridges that essentially extend in a radially outwards direction. The invention is characterized by the fact that the bridges to secure the motor are arranged in the region of the air intake opening of the flow channel.
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Description

BACKGROUND OF THE INVENTION

[0001] The invention relates to a compact diagonal fan according to the preamble of patent claim 1. PRIOR ART

[0002] At first glance there seems to be very little difference between diagonal fans and the familiar axial fans, which is why they are also frequently referred to as “semi-axial” blowers. Like an axial fan, a diagonal fan according to FIG. 3 essentially comprises a housing 100, an electric motor 101 supported within the housing 100 whose hub 102, together with a plurality of blades 103 formed on the hub 102, go to make up the impeller 104 of the fan. The impeller 104 is rotatably supported about a rotational axis 105 and is driven by the electric motor 101. The electric motor 101 is held within the housing100 by means of bridges 106 which essentially extend in a radially outwards direction.

[0003] For both diagonal and axial compact fans, the motor 101, the commutation electronics (if used), the impeller 104 and the housing 100 are all integrate...

Claims

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