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Coolant pumps for internal combustion engines

A technology for coolant pumps and internal combustion engines, applied in engine cooling, liquid cooling, pumps, etc., which can solve problems such as inability to arrange and install, increase location requirements, and increase installation costs

Inactive Publication Date: 2021-06-08
PIERBURG GMBH & CO KG NEUSS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, there are increased installation costs and especially increased space requirements for the schematically explained flow guidance and due to the chosen arrangement and housing parts, so that such pumps cannot be arranged and installed in the corresponding corresponding parts of the cylinder crankcase. design

Method used

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  • Coolant pumps for internal combustion engines
  • Coolant pumps for internal combustion engines

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] The coolant pump according to the invention comprises an outer housing 10 in which a helical delivery channel 12 is formed, in which cooling is sucked in via an axial pump inlet 14 also formed in the outer housing 10 The coolant is delivered via the delivery channel 12 into a tangential pump outlet 16 formed in the outer housing 10 and into the cooling circuit of the internal combustion engine. Furthermore, the housing 10 can be formed in particular by a cylinder crankcase which has a recess for receiving the remaining coolant pump.

[0026] For this, a coolant pump impeller 20 is fastened radially in the delivery channel 12 on the drive shaft 18 , said coolant pump impeller 20 is formed as a radial pump wheel, the rotation of which achieves the cooling of the coolant. Delivery in the delivery channel 12.

[0027]The drive of the turbine pump impeller 20 takes place via a drive belt 22 which drives a pulley 24 which is fastened on the axial end of the drive shaft 18 op...

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PUM

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Abstract

The invention relates to a coolant pump for an internal combustion engine, said coolant pump having: a drive shaft (18); on the shaft (18), and through the coolant pump impeller, the coolant can be delivered to the delivery channel (12) around the coolant pump impeller (20); the adjustable control slider (28), through the The control slider can regulate the flow cross-section of the annular gap between the outlet (32) of the coolant pump impeller (20) and the surrounding delivery channel (12); the side channel with the side channel pump impeller (46) a pump (56), the side channel pump impeller being arranged at least torsionally fixed on the drive shaft (18); a side channel (50) of the side channel pump (56) through which the side channel The rotation of the pump impeller (46) can generate pressure; the pressure channel (72), through which the outlet (54) of the side channel (50) can be connected to the first pressure chamber of the control slider (28) (58) in fluid communication; and a valve (66) by which the flow cross-section (70) of the pressure channel (72) can be closed and opened. In order to shorten the construction space of the coolant pump in particular axially, it is proposed that the coolant pump impeller (20) is formed in one piece with the side channel pump impeller (46) and that the side channel (50) is formed in the first In the housing part (40), the control slide (28) is slidably guided on the first housing part.

Description

technical field [0001] The invention relates to a coolant pump for an internal combustion engine with a drive shaft and a coolant pump impeller arranged at least in a rotationally fixed manner on the drive shaft and passing through the coolant pump impeller The coolant can be delivered into the delivery channel around the coolant pump impeller; the adjustable control slider can regulate the flow width of the annular gap between the outlet of the coolant pump impeller and the surrounding delivery channel. Cross section; side channel pump with side channel pump impeller, said side channel pump impeller is arranged at least torsionally fixedly on the drive shaft; side channel of side channel pump, in said side channel by rotation of side channel pump impeller Pressure generation; a pressure channel, via which the outlet of the side channel can be fluidically connected to the first pressure chamber of the control slide; and a valve, via which the flow cross section of the pressure...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D5/00F04D13/12F04D15/00
CPCF04D5/002F04D15/0038F05D2270/64F01P5/10F01P2003/001F01P2005/105F04D13/12
Inventor 斯特凡·齐尔伯格安德雷斯·伯格米夏埃尔-托马斯·本拉斯特凡·洛特冈米夏埃尔·贝克尔
Owner PIERBURG GMBH & CO KG NEUSS
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