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Hybrid electromechanical coolant pump

a technology of electromechanical and coolant pump, which is applied in the direction of pumps, control devices of cooling apparatus, fluid engines with non-positive displacement, etc., can solve the problems of complex design and mechanical construction of the engine, and achieve the effect of improving the warm-up behavior of the engin

Inactive Publication Date: 2015-02-05
BORGWARNER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention is about a new way to cool heavy truck engines using a fully variable coolant pump. The engine needs a smaller amount of coolant fluid to avoid hot spots and a larger amount to cool the vehicle in full load conditions. By downsizing the coolant pump, it can be used for both utility and passenger vehicles, improving engine warm-up behavior by adjusting the basic coolant flow.

Problems solved by technology

However, such a design is complex with regard to its mechanical construction and is susceptible to operation inconsistencies.

Method used

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  • Hybrid electromechanical coolant pump
  • Hybrid electromechanical coolant pump
  • Hybrid electromechanical coolant pump

Examples

Experimental program
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Embodiment Construction

[0032]FIG. 1 shows a sectioned illustration through a coolant pump 15 according to one embodiment of the invention. The coolant pump 15 has a pump wheel (also called an “impeller”) which is arranged on a pump wheel shaft (also called an “impeller shaft”). The pump wheel shaft is divided into a driving section 3 and a driven section 11. In the illustrated embodiment, the driving section 3 is formed as a flange-shape structure to which a mechanical drive 1, in the form of a belt pulley in this example, is rotationally fixedly connected. In the illustrated embodiment, the arrangement composed of a flange-shape structure 3 and a belt pulley 1 is mounted in a housing 7 by means of a bearing 6.

[0033]The mechanical drive 1 may be connected to an internal combustion engine of a motor vehicle, wherein in the illustrated embodiment, it is possible to use a belt drive. Only the belt pulley 1 is shown in order to simplify the illustration.

[0034]The driven section 11 of the pump wheel (impeller)...

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Abstract

The invention relates to a coolant pump having an impeller which is arranged on a pump impeller shaft and having a drive device for the impeller, which drive device has a mechanical drive and an electric-motor drive. The impeller shaft is divided into a driving section and a driven section, and an openable and closable clutch is arranged between the driving section and the driven section. Operation of the coolant pump by either the mechanical drive or the electric-motor drive can be dependent upon a predetermined speed of threshold of rotation of the impeller, and / or upon a predetermined power usage threshold.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation-in-part of U.S. patent application Ser. No. 12 / 937,746, filed on Feb. 6, 2011, and entitled “Coolant Pump.”TECHNICAL FIELD[0002]The present invention relates to coolant pumps which have both a mechanical mode of operation and an electric mode of operation.BACKGROUND OF THE INVENTION[0003]A coolant pump is known from DE 102 14 637 A1. To be able to realize different driving operation states of a vehicle with such a coolant pump, which has both an electric-motor drive and also a mechanical drive, a planetary drive is provided which can be driven by the electric motor and / or by the mechanical drive. However, such a design is complex with regard to its mechanical construction and is susceptible to operation inconsistencies.[0004]It is therefore an object of the present invention to create a coolant pump with a simpler and more reliable design in relation to the prior art and whose operation is efficient and fail-safe.SU...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F01P5/12
CPCF01P5/12F01P7/164F04D13/06F04D13/021F01P7/162F01P2037/00
Inventor BUCHHOLZ, THOMASROTH, JUERGEN
Owner BORGWARNER INC