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Regulatable coolant pump

A coolant pump and cooling circuit technology, which is applied in the control of coolant flow, engine cooling, pumps, etc., can solve the problem of large ratio and achieve the effect of saving structural space

Inactive Publication Date: 2013-12-04
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the magnet must be oversized relative to the actual water pump
However the decisive disadvantage is that when driving the drive wheels, the impeller always follows the rotation, this is because the impeller is directly connected to the crankshaft, even if engine cooling is not desired

Method used

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  • Regulatable coolant pump
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  • Regulatable coolant pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Figure 1 to image 3 An adjustable water pump is shown, which has a hollow bearing shaft 1 which has a drive wheel 2 at its one end and an impeller 18 at its opposite end. The impeller 18 has a stop surface 19 on the end side, with which the impeller is connected in one piece. The space between the impeller 18 and the stop surface 19 forms the conveying cross-section 22 of the water to be conveyed. It can be said that the delivery cross-section 22 is located between the suction space and the pressure space.

[0023] In the hollow bearing shaft 1 , the traction wedge 3 is moved linearly by means of an actuator 21 . The traction wedges 3 have different diameters. The end of the traction wedge 16 facing the impeller 18 is surrounded by a cylinder 11 open on one side, which is likewise arranged in the bearing shaft 1 so as to be movable linearly. In order to adjust the water flow in the pump according to the cooling requirement, a guide wheel 17 is installed on the end s...

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PUM

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Abstract

The invention relates to a regulatable coolant pump for a cooling circuit of an internal combustion engine, comprising a hollow bearing shaft (1) carrying a drive wheel (2) on one end thereof and being secured to an impeller (18) on the opposite end thereof. The impeller (18) comprises an abutment surface (19) on the front side, and the space between the impeller (18) and the abutment surface (19) is embodied as a conveying cross-section (22). The drive wheel (2) can be uncoupled from the bearing shaft (1) by means of a draw key (3).

Description

technical field [0001] The invention relates to a controllable coolant pump for a cooling circuit of an internal combustion engine, the controllable coolant pump having a hollow bearing shaft which carries a drive wheel at its one end, The end portion is fixedly connected to the impeller, wherein the impeller has a stop surface on the end side, and the space between the impeller and the stop surface is formed as a conveying cross section. Background technique [0002] In the field of internal combustion engines, water-cooled engines should be used as much as possible. Here, the cooling water is pumped in a closed circuit by means of a coolant pump through the cooling channel into the region of the cylinder block in order to cool the internal combustion engine and then fed to the air-water cooler, where the hot water is cooled down again by the driving air. Here, the pump required for circulating the water is usually connected via a belt to the pulley of the crankshaft of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/02F04D15/00F01P7/16
CPCF01P7/162F02B39/12F04D13/021F01P2007/143F04D15/0038
Inventor 米夏埃尔·玮斯克劳斯·哈恩
Owner SCHAEFFLER TECH AG & CO KG