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Electric coolant pump

A coolant pump and coolant technology, applied in engine cooling, coolant flow control, pump control, etc., can solve problems such as large installation space

Active Publication Date: 2019-05-21
MAHLE INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another decisive disadvantage is that the known coolant pump and the thermostatic control valve arranged separately therefrom require a relatively large installation space

Method used

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  • Electric coolant pump
  • Electric coolant pump
  • Electric coolant pump

Examples

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Embodiment Construction

[0021] according to Figure 1 to Figure 5 According to the present invention, the electric coolant pump 1 for delivering coolant 2 has at least one first coolant inlet 3, 3', at least one second coolant inlet 4, 4' and coolant outlet 5. In this case, the coolant pump 1 according to the invention is adjustable between a plurality of operating points, in particular between the first, second, third and fourth operating points. Furthermore, the coolant pump 1 according to the invention has a valve arrangement 6 which is integrated in the coolant pump 1 and which is formed in such a way that depending on the selected operating point of the coolant pump 1 and thus on the cooling hydraulic pressure Force p, opens or closes the at least one first or second coolant inlet 3, 3', 4, 4' or simultaneously opens at least one first and second coolant inlet 3, 3', 4, 4'.

[0022] as in figure 1 , figure 2 and Figure 4 It can be seen that the coolant pump 1 and the valve arrangement 6 ac...

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Abstract

The invention relates to an electric coolant pump (1) for delivering a coolant (2), which cooling pump can be adjusted between multiple operating points, comprising at least one first coolant inlet (3, 3'), at least one second coolant inlet (4, 4') and a coolant outlet (5), a valve device (6), which is formed in such a way that, depending on the selected operating point of the coolant pump (1), and therefore on the pressure (p) in the coolant (2), the valve device opens or closes a first or second coolant inlet (3, 3', 4, 4') or simultaneously opens at least one first and second coolant inlet(3, 3', 4, 4'), wherein the valve device (6) is integrated into the coolant pump (1).

Description

technical field [0001] The invention relates to an electric cooling liquid pump for conveying cooling liquid. The invention also relates to a motor vehicle with an internal combustion engine and such a coolant pump. Background technique [0002] In modern motor vehicles, coolant pumps are often used to cool the internal combustion engine, wherein the cooling power is usually controlled via a thermostatically controlled valve. Such a thermostatic control valve can open a bypass around the radiator, for example when only low cooling power is required. Such thermostatically controlled valves usually have an expansion element which enables a relatively simple temperature-dependent control. [0003] However, a disadvantage of the coolant pumps known from the prior art is that they generally operate at a constant high power and are only controlled via a thermostatic control valve. Therefore, relatively high energy is required to operate the coolant pump. Another decisive disad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P7/14F16K31/122F01P7/16F04D15/00F01P5/12F01P5/10
CPCF01P5/10F01P7/14F01P7/162F01P7/164F01P2005/125F01P2007/146F04D15/0016F04D15/0022F01P5/12F01P7/16F01P7/161F01P11/16F01P2025/50F04D15/00F16K31/1221
Inventor 斯文-尤里·鲍尔米夏埃尔·鲍曼安德烈亚斯·格吕纳安德烈娅·托伊布纳
Owner MAHLE INT GMBH