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

Valve rotating device

A technology of rotary device and valve, applied in valve device, lift valve, engine components, etc., can solve the problem of limited duration of disc spring

Pending Publication Date: 2021-05-07
MAN TRUCK & BUS AG
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The duration of this delay in the event of an oil leak and the resulting float of the disc springs is limited

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 rotating device
  • Valve rotating device
  • Valve rotating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] The exemplary embodiments shown in the figures are at least partially identical, so that similar or identical parts are provided with the same reference numerals and are explained with reference to other exemplary embodiments or to the description of the figures in order to avoid repetition.

[0042] figure 1The valve 10 is shown in half section. Suitably, the valve 10 may be a valve of an internal combustion engine, such as a valve of a reciprocating piston internal combustion engine. For example, the internal combustion engine may be a diesel internal combustion engine, a gasoline internal combustion engine and / or a gas fueled internal combustion engine. Preferably, the valve 10 can connect the fluid channel 12 in the cylinder head 14 of the internal combustion engine and the combustion chamber 16 of the internal combustion engine to each other in the open state, or separate them from each other in the closed state. For example, valve 10 may be an intake valve and f...

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 valve rotating device (24) for a valve (10), preferably an intake valve or exhaust valve, of an internal combustion engine. The valve rotating device (24) has a valve restoring spring (22) for preloading the valve (10) toward a closed position of the valve (10) and a Belleville spring (40), which is arranged in operative connection between the valve restoring spring (22) and a support surface (44), and is lubricated with a lubricating fluid. An at least partially, preferably completely, peripherally extending collar portion (46) is arranged at a periphery, preferably inner periphery, of the Belleville spring (40). The collar portion (46) can have a wear-reducing effect and / or can make the valve rotating device (24) easier to install.

Description

technical field [0001] The invention relates to a valve rotation device for a valve, preferably an intake valve or an exhaust valve, of an internal combustion engine. Background technique [0002] US 2 827 885 A discloses a valve rotation device with a washer and a Belleville spring (Tellerfeder). Since the washers and disc springs are located under the valve coil springs on the cylinder head, their surfaces are normally supplied with oil from the valve stem lubrication system and the rocker arm lubrication system. This means that there is always an adequate supply of lubricating oil to the cylinder head from the engine lubricating system, and thus there is always enough lubricating oil to lubricate the surfaces. When the disc springs are compressed, this oil is forced out of the space between the surfaces. However, there is enough delay in this oil leakage between these surfaces that a film of oil is trapped between these surfaces during a portion of the valve lift, there...

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): F01L1/32
CPCF01L1/32F01L2810/02F01L2303/00F01L1/462F01L3/08
Inventor 乌尔里希·勃姆
Owner MAN TRUCK & BUS AG