Unlock instant, AI-driven research and patent intelligence for your innovation.

Valve train actuating device for an internal combustion engine

A valve mechanism and operating device technology, applied to valve devices, machines/engines, mechanical equipment, etc., can solve problems such as energy demand of oil pumps

Inactive Publication Date: 2013-12-04
SCHAEFFLER TECH AG & CO KG
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition there is an additional oil pump energy requirement
In the case of mounting positions of the supports inclined to the horizontal there is also the risk of pressure medium escaping from the pressure medium supply opening of the housing

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
  • Valve train actuating device for an internal combustion engine
  • Valve train actuating device for an internal combustion engine
  • Valve train actuating device for an internal combustion engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] exist figure 1 In the valve train operating device according to the first embodiment, a rocker-arm-shaped cam follower of a valve train of an internal combustion engine and a hydraulic support for supporting the cam follower are shown, which are not further shown. The hydraulic support has a cup-shaped housing 1 in which a cylindrical piston is guided. The piston protrudes from the housing 1 with a support head 2 on which a rocker-shaped cam follower is supported in an end region so as to be pivotable. A storage space 3 for pressure medium for the hydraulic compensation of the valve play is formed inside the piston.

[0020] The piston is designed in two parts with an upper piston part and a lower piston part, wherein the upper piston part has a support head 2 . The piston upper part and the piston lower part are arranged coaxially one after the other in the housing 1 . In this case, the upper piston part rests with its end facing away from the support head 2 on the ...

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

A valve train actuating device for an internal combustion engine including a lever-type cam follower and a hydraulic support element for supporting the cam follower is provided. The hydraulic support element includes at least one piston guided in a housing (1), the piston having at least one reservoir (3) for pressure medium for a hydraulic valve lash adjustment. The piston cooperates on a supporting head (2) projecting out of the housing (1) with a supporting region (4) of the cam follower, and a pressure medium inlet is configured on the supporting head (2) and on the supporting region (4) for supplying pressure medium to the reservoir (3).

Description

technical field [0001] The invention relates to a valve train operating device for an internal combustion engine according to the type defined in detail in the preamble of patent claim 1 . Background technique [0002] The hydraulic supports for the cam followers in the valve train are usually supplied with pressurized oil through channels by the oil pump of the internal combustion engine. DE 10 2008 038 792 A1 shows a hydraulic support for a controllable rocker arm of a valve train of an internal combustion engine. There, the pressure piston is guided in a bore of a cup-shaped housing on which a rocker arm is supported in the end region on a head protruding from the housing. Two accumulators for pressure medium for the hydraulic compensation of the valve play are formed inside the pressure piston. The storage space in the piston is supplied with pressure medium by the oil pump of the internal combustion engine. For this purpose, oil supply channels or oil supply openings...

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): F01L1/18F01L1/24
CPCF01L1/34F01L1/185F01L2001/187F01L1/2405
Inventor 彼得·赛勒沃尔夫冈·克里斯特根于尔根·克雷奇默
Owner SCHAEFFLER TECH AG & CO KG
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com