Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hydraulic camshaft phaser

A camshaft adjuster, hydraulic technology, applied in the direction of machines/engines, engine components, mechanical equipment, etc., can solve the limitation of functional adjustment speed, the unsealing of hydraulic camshaft adjusters, and the difficulty of adjustment of hydraulic camshaft adjusters, etc. question

Active Publication Date: 2020-01-10
SCHAEFFLER TECH AG & CO KG
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution has the disadvantage that the seals cause additional friction, which makes the adjustment of the hydraulic camshaft adjuster difficult, and that wear can occur during the use of the hydraulic camshaft adjuster, which leads to hydraulic camshaft adjustment. Leakage of the device, which may limit the functionality and especially the adjustment speed

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
  • Hydraulic camshaft phaser
  • Hydraulic camshaft phaser
  • Hydraulic camshaft phaser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] specific implementation plan

[0029] figure 1 A hydraulic camshaft adjuster 1 for adjusting the valve timing of an internal combustion engine is shown. The hydraulic camshaft adjuster 1 has a stator 2 and a rotor 3 . In this case, rotor 3 and stator 2 are arranged centrally about a common central axis 11 . The rotor 3 has a central opening 27 in which is arranged a central valve 4 for hydraulically controlling the working chambers 6 , 7 of the hydraulic camshaft adjuster 1 . Channels 37 , 38 are formed in stator 2 and / or rotor 3 for conveying or discharging hydraulic oil 12 into working chambers 6 , 7 . An annular space 40 is formed between the stator 2 and the rotor 3 . The stator 2 has inwardly protruding webs 25 in the radial direction, which delimit the individual pressure chambers of the hydraulic camshaft adjuster 1 . Outwardly protruding vanes 26 are formed on the rotor 3 in the radial direction and divide the individual pressure chambers into a first worki...

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 relates to a hydraulic camshaft phaser (1) having: a stator (2) and a rotor (3) which is arranged concentrically and movably along a common centre axis (11) relative to the stator (2); acentral valve (4) via which the oil supply to the working chambers (6, 7) of the hydraulic camshaft phaser (1) is controlled; an actuator (5) via which the position of the central valve (4) relativeto the rotor (3) can be changed; and an oil collection bell (8) for collecting hydraulic oil (12) exiting from the central valve (4), wherein a protrusion (9, 23) is formed on the central valve (4) and / or on the actuator (5), said protrusion preventing hydraulic oil (12) which exits in the axial direction from the stator (2) or from a cover (10) connected to the stator (2) being discharged in theradial direction into the environment and wherein the protrusion (9, 23) collects this hydraulic oil (12) and conducts it into the oil collection bell (8).

Description

technical field [0001] The invention relates to a hydraulic camshaft adjuster according to the preamble of claim 1 . Background technique [0002] Hydraulic camshaft adjusters are used in internal combustion engines to adapt the timing of the timing of the intake and exhaust valves of the internal combustion engine to the load state of the internal combustion engine and thus to increase the efficiency of the internal combustion engine. Hydraulic camshaft adjusters are known from the prior art, which work according to the vane principle. In its basic structure, a hydraulic camshaft adjuster generally has a stator that can be driven by the crankshaft of the internal combustion engine and a rotor that can be connected in a rotationally fixed manner to the camshaft of the internal combustion engine. An annular space is arranged between the stator and the rotor, which is divided into a plurality of working chambers by radially inwardly protruding projections which are connected ...

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
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/3443F01L2001/34433F01L2001/34479
Inventor 于尔根·韦伯赖纳·奥特斯巴赫勒内·京特
Owner SCHAEFFLER TECH AG & CO KG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com