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valve drive rod

A transmission rod and valve technology, applied in the direction of valve device, engine control, engine components, etc., can solve the problem of increasing the moment of inertia of the rocker

Active Publication Date: 2022-06-24
MAN SONDERFAHRZEUGE AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is usually not guaranteed by a larger dimensioning of the piston-cylinder unit, since this would also increase the moment of inertia of the rocker

Method used

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Embodiment Construction

[0048] figure 1 A first embodiment of a valve actuating lever, designated in its entirety by the reference numeral 100, is schematically shown for actuating a valve 122 of a reciprocating piston engine, in particular an internal combustion engine. The valve actuation lever 100 includes a lever arm 102 which is pivotably movable about a pivot axis 104 . In the first position of the lever arm 102, a gripping member 106 is provided via the coupling mechanism 110 for cooperating with the cam 108 of the reciprocating piston engine. The coupling mechanism 110 includes a pressure piston cavity 112 for containing hydraulic fluid, such as lubricating oil. The gripping element 106 and / or the pressure piston arranged in the pressure piston chamber 112 has a longitudinal groove into which the anti-rotation part 116 of the lever arm 102 is inserted. Alternatively, by applying pressure to the hydraulic fluid, the shoulder 114 on the gripping part 106 or on the part connected to it (for ex...

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Abstract

A valve transmission rod (100) is introduced for operating a valve of a reciprocating piston engine, especially an internal combustion engine. The valve drive rod (100) comprises: a lever arm (102) oscillatingly movable around an axis (104); Picking part (106); coupling mechanism (110), by this coupling mechanism, described grabbing part (106) and described lever arm (102) are spring-elastically coupled in the first state, in the second state and an actuating part (120) which is connected to the lever arm (102) and rests on or can be brought into contact with the valve tappet of the valve.

Description

technical field [0001] The invention relates to a valve transmission rod used for operating a valve of a reciprocating piston engine, especially an internal combustion engine. In particular, but not exclusively, a valve lever for operating a valve for taking compressed gas from a combustion chamber of an internal combustion engine, and an internal combustion engine equipped with such a valve lever, is disclosed. compressed air. Background technique [0002] Internal combustion engines of motor vehicles, in particular commercial vehicles, can be used to supply compressed air. For example, in coasting or engine braking operation, when the internal combustion engine is not fired, the internal combustion engine can be used as a compressor for generating compressed air. In addition, compressed gas can be obtained from the combustion chamber of the internal combustion engine for a predetermined duty cycle. [0003] The publication AT 514127 A1 describes a valve through which th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01L1/18F01L13/06F02D13/02
CPCF01L1/181F01L13/06F01L1/18F02D13/0276F01L2001/186F01L2810/04F01L2820/031F01L13/0005F01L2305/00F01L1/2416F01L2001/2444
Inventor 戈特弗里德·拉布托马斯·艾伯尔弗郎茨·莱滕马里埃瓦尔德·亨茨伯格
Owner MAN SONDERFAHRZEUGE AG