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Convertible Car Coolant Pump

A technology for automobile cooling and pump wheel, which is applied in the control of coolant flow, engine cooling, pump and other directions, which can solve the problems of high production cost and complicated actuation arrangement.

Inactive Publication Date: 2016-05-18
PIERBURG PUMP TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This actuation arrangement is complex and expensive to produce and causes problems in particular with regard to the sealing between the actuation rod and the rotor shaft

Method used

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  • Convertible Car Coolant Pump
  • Convertible Car Coolant Pump
  • Convertible Car Coolant Pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Figures 1 to 4 A switchable automotive coolant pump 10; 10' is shown for pumping a coolant, eg water, in a coolant circuit for cooling an internal combustion engine (not shown). The coolant pump 10; 10' is adapted to be mounted to the engine and is adapted to be driven by the engine via a drive belt 20 which drives the pulley 18 of the coolant pump so that the pulley 18 of the coolant pump 10; 10' is always proportional to the engine speed rotation speed.

[0020] The coolant pump 10; 10' is provided with a housing 11 which isolates the wet section W from the dry section D. Housing 11 supports bearings 16 in dry section D. The bearing 16 thus supports the rotatable rotor shaft 12; 12'. The pulley 18 is generally fixed to the rotor shaft 12 . The rotor shaft 12 protrudes through the opening 17 of the housing 11 , wherein an annular shaft seal 13 is provided to seal the annular gap between the opening edge of the opening 17 and the rotor shaft 12 . The shaft seal 13...

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PUM

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Abstract

The invention relates to a convertible automotive coolant pump (10; 10ˊ) having: a pulley (18) fixedly supported by a rotor shaft (12; 12ˊ); a shaft seal (13) opposing a dry section (D) separated from the wet section (W) by the rotor shaft (12;12); the pump wheel (14;14ˊ), supported by the rotor shaft (12;12ˊ) in the wet section (W), and Axial sliding between pumping and non-pumping positions; linear actuator rod (33), arranged parallel to and eccentrically relative to the rotor shaft (12; 12ˊ); rod seal (35), separate actuation Wet and dry sections of the actuator rod (33), the actuator rod (33) being actuated by the actuator (22) arranged in the dry pump section (D); and the moving ring (24; 24') , arranged to be axially movable and rotatably fixed on the rotor shaft (12;12ˊ) in the wet pump section (W), whereby the moving ring (24;24ˊ) is axially moved by the actuator rod (33) and move the impeller (14) axially.

Description

technical field [0001] The present invention relates to a convertible mechanical automotive coolant pump for pumping coolant for cooling an internal combustion engine. Background technique [0002] Mechanical coolant pumps are driven directly by the internal combustion engine, for example via a drive belt that drives a pulley of the coolant pump. If the pulley is directly connected to the pump wheel, the performance of the pump depends on the rotational speed of the internal combustion engine. To allow for a more responsive control of the coolant pump, the mechanical coolant pump may be provided with a friction clutch to connect the pulley with the rotor shaft only as needed. Friction clutches are usually arranged in the dry section of the coolant pump. [0003] DE102006039680A1 discloses a switchable mechanical automotive coolant pump, wherein the impeller is axially movable between a pumping position and a non-pumping position. The pump impeller is actuated by an actuat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P5/12F01P7/16F16D25/08F04D15/00
CPCF01P5/12F01P7/162F04D15/0027F04D29/042F04D13/022
Inventor J-M.杜兰德
Owner PIERBURG PUMP TECH
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