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

Pistons for hydraulic valves for camshaft phasers and hydraulic valves for camshaft phasers for camshafts

A technology of phase adjuster and camshaft, which is applied in the field of hydraulic valves and can solve problems such as high cost and high assembly cost

Active Publication Date: 2019-11-08
ECO HLDG 1 GMBH
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, either a complex housing design is required for receiving and securing the non-return valve, or the housing is constructed in multiple parts and requires high assembly costs

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
  • Pistons for hydraulic valves for camshaft phasers and hydraulic valves for camshaft phasers for camshafts
  • Pistons for hydraulic valves for camshaft phasers and hydraulic valves for camshaft phasers for camshafts
  • Pistons for hydraulic valves for camshaft phasers and hydraulic valves for camshaft phasers for camshafts

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The hydraulic valve 1 according to the invention for a camshaft phase adjuster not shown in more detail for a camshaft not shown in more detail is designed in accordance with figure 1 in the first embodiment. The hydraulic valve 1 is designed to be accommodated as a central valve in a rotor of a camshaft phase adjuster, not shown in greater detail. In other words, hydraulic valve 1 is accommodated in the central opening of the camshaft phaser so that it is at least partially surrounded by said camshaft phaser.

[0044] The hydraulic valve 1 has a housing 2 designed to allow flow. A plurality of connections A, B, P, T1 , T2 are provided on the housing 2 for the hydraulic supply of the camshaft phaser. In the housing 2 , a piston 4 movable axially along the first longitudinal axis 3 of the hydraulic valve 1 is accommodated in a central opening 5 of the housing 2 . The housing 2 is in most cases of tubular design.

[0045] The camshaft phase adjuster allows, during ope...

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 piston for a hydraulic valve of a camshaft phase adjuster, wherein the piston (4) is designed as a hollow cylinder, and wherein the piston (4) in a along a first longitudinal axis (3) of a housing (2) of the hydraulic valve (1) extending central opening (5) is axially movable, wherein in accordance with a positioning of the piston (4) in particular working ports (A, B) of the housing (2) are opened and locked, and wherein the piston (4) to avoid an undesirable outflow of a piston (4 ) flowing hydraulic fluid from an interior (9) of the piston (4) in the working ports (A, B) associated flow openings (29, 30) of the piston (4) check valves (25; 26). According to the invention, the piston (4) in the direction of its interior (9) opening check valves (25; 26) in its interior (9) receiving, which are fixed by means of a between the two check valves (25, 26) arranged spacer element (27) , Furthermore, the invention relates to a hydraulic valve for a camshaft phase adjuster a camshaft.

Description

technical field [0001] The invention relates to a piston for a hydraulic valve of a camshaft phaser and a hydraulic valve for a camshaft phaser of a camshaft. Background technique [0002] Hydraulic valves for camshaft phasers of camshafts of internal combustion engines are known. The hydraulic valve has an axially movable piston in a housing of the hydraulic valve, by means of which piston the hydraulic loading of the camshaft phase adjuster is adjusted. Hydraulic valves are available in various construction types. The housing is designed as a hollow cylinder. The piston is also designed as a hollow cylinder. The hydraulic adjustment of the camshaft phase adjuster takes place by means of seating the flow-through piston and correspondingly releasing or closing connections formed on the housing. [0003] From the publications DE 10 2013 104 573 A1 and DE 10 2013 104 575 A1 hydraulic valves are known which have a supply connection at the end of the housing in such a way 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 Patents(China)
IPC IPC(8): F01L1/344
CPCF01L1/3442F01L2001/34423F01L2001/3445
Inventor 布伦特·布勒丹尼尔·斯坦霍普
Owner ECO HLDG 1 GMBH
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