Switchable mechanical coolant pump

A coolant pump, mechanical technology, applied in the field of convertible mechanical coolant pump, can solve problems such as low friction

Inactive Publication Date: 2014-05-28
PIERBURG PUMP TECH
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Alternatively, the friction clutch can be a wet friction clutch, with the disadvantage that the friction in a wet clutch environment is much lower than in a dry clutch environment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Switchable mechanical coolant pump
  • Switchable mechanical coolant pump
  • Switchable mechanical coolant pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] figure 1 and 2 Two embodiments of a switchable mechanical coolant pump 10, 10' are shown in longitudinal section. The coolant pump 10, 10' The coolant pump 10, 10' pumps coolant into the coolant circuit for cooling the internal combustion engine.

[0023] The coolant pump 10, 10' is provided with a metal housing 14 which supports a bearing module 44. The bearing module 44 supports a rotatable rotor shaft 16 provided with a pulley 12 co-rotating with the rotor shaft 16 . The pulley 12 and the rotor shaft 16 always rotate at a speed proportional to the speed of the driving engine. The pulley 12 is disposed at the distal end of the rotor shaft 16 .

[0024] At the opposite proximal end of the rotor shaft 16 there is provided a pump wheel 18 which is rotatable but not axially movable relative to the rotor shaft 16 . The pump wheel 18 basically comprises a circular base plate 19 and pump blades 17 protruding axially from the base plate 19 in the proximal dire...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention refers to a switchable mechanical coolant pump (10) comprising a pulley wheel (12) co-rotating with and supported by a rotatable rotor shaft (16), the pulley wheel (12) being directly drivable by a combustion engine, a pump wheel (18) rotatably supported at the rotor shaft (16), an electrically switched wedge-coupled wet friction clutch (40) with a clutch support (26) being fixed to the rotor shaft (16), a clutch ring (30) at the proximal side of the pump wheel (18), and a separate clutch disk (20) rotatably and shiftably supported by the rotor shaft (16), the clutch disk (20) comprising a ferromagnetic element (21) and being arranged axially between the clutch support (26) and the clutch ring (30), a static electromagnet (24) axially pulling the clutch disk (20) to the clutch support (26) into a disengaged position when energized, and a wedge coupling mechanism (22); defined at the proximal side of the clutch disk (20) and the distal side of the clutch support (26), the wedge coupling mechanism (22) comprising: a wedge element (36) and a counter-wedge element (38).

Description

technical field [0001] The present invention relates to a switchable mechanical coolant pump having a wet friction clutch actuated by an electromagnet. Background technique [0002] A mechanical coolant pump is driven by the internal combustion engine, the coolant pump producing a flow of coolant for the internal combustion engine. The coolant pump has a pulley driven by a drive belt. The switchable mechanical coolant pump is provided with a clutch arrangement which makes it possible to shut off the coolant pump if effective cooling of the engine is not required, for example immediately after a cold start of the engine. [0003] The friction clutch can be a dry friction clutch, which is exposed to the environment, only capable of air cooling and increases the axial dimension of the dry part of the coolant pump. Alternatively, the friction clutch can be a wet friction clutch, with the disadvantage that the friction in the environment of a wet clutch is much lower than in th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): F04D13/02F16D27/112
CPCF04D13/021F16D2023/123F16D27/112
Inventor J.C.施耐德L.菲尼多里A.金思特T.施万德
Owner PIERBURG PUMP TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap