MULTISTAGE, ELECTRICALLY DRIVABLE COMPRESSOR
The application relates to a multistage, electrically drivable compressor (1) for generating compressed air for a compressed air supply system of a utility vehicle, the compressor having a cooling system (7.1) which can be operated using a fluid coolant and can be connected to a cooling system (10)...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The application relates to a multistage, electrically drivable compressor (1) for generating compressed air for a compressed air supply system of a utility vehicle, the compressor having a cooling system (7.1) which can be operated using a fluid coolant and can be connected to a cooling system (10) of the utility vehicle. The compressor is designed as a rotary compression unit and has an electric motor (2) and an inverter (3), which is designed to supply energy and to control the electric motor in an open-loop and closed-loop manner. The compressor also has a first compression stage (4) and at least a second compression stage (5), which are connected pneumatically to an intermediate cooler (19) via a connection device (25). In order to achieve a particularly compact design and very good cooling performance, the cooling system (7.1) has a plurality of cooling elements (11a-111; 12a-12f; 13a-13e; 16, 17, 18, 19.1, 20, 21) which differ in terms of their function, arrangement and geometry, and through which the coolant can flow. Said cooling elements are arranged, at least partially, inside the housing (32) of the compressor (1), and with respect to their arrangement inside the housing (32), are at different radial distances (a1, a2, a3) from the axis of rotation (6) of the drive shaft (33) of the electric motor (2) and are arranged with their longitudinal extents in different radial orientations. |
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