Modular rocker arm

A modular, rocker arm assembly technology used in engine components, machines/engines, mechanical equipment, etc.

Active Publication Date: 2019-02-12
EATON INTELLIGENT POWER LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such typical systems only provide preset features and functions that cannot be changed without substantial cost or complete replacement

Method used

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  • Modular rocker arm
  • Modular rocker arm
  • Modular rocker arm

Examples

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Embodiment Construction

[0015] Reference will now be made in detail to the examples illustrated in the drawings. Where possible, the same reference numerals will be used throughout the drawings to refer to the same or similar parts. Directional references such as "left" and "right" are for easy reference to figures.

[0016] First reference Figure 1A with 1B According to examples of the present disclosure, partial modular valve mechanism components 10, 11 are constructed. As described herein, the partial modular valve mechanism components 10, 11 utilize various combinations of modular features to provide various combinations of the following variable valve actuation (VVA) functions: cylinder deactivation (CDA), two-stroke, or four-stroke Stroke decompression engine braking (EB), hydraulic clearance adjustment (HLA) and intake or exhaust variable valve lift (VVL), the intake or exhaust variable valve lift includes the delayed closing of the intake valve ( LIVC) and the exhaust valve open early (EEVO). ...

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PUM

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Abstract

A modular exhaust valve rocker arm assembly system comprising first and second rocker arm assemblies configured to each selectively receive a hydraulic lash adjustment assembly or a mechanical lash adjustment assembly. A main lifter assembly operably associated with the first and second rocker arm assemblies. An added motion lifter assembly operably associated with the first rocker arm assembly and configured to selectively provide one of an early lift profile and an extended lift profile, which can comprise at least one of an engine braking feature, a late intake valve closing (LIVC) feature,and an early exhaust valve opening (EEVO) feature. The main lifter can be configured as a fixed lifter or as a deactivating lifter for cylinder deactivation (CDA) configured to selectively move to adeactivated state configured to absorb motion of a normal lift profile cam into lost motion.

Description

Technical field [0001] The present application provides a modularized rocker arm assembly for an engine valve mechanism. Background technique [0002] Some valve mechanism components include compression engine braking as the main function. In addition to wheel brakes, compression engine brakes can be used as auxiliary brakes on relatively large vehicles powered by heavy or medium diesel engines, for example. When the piston in the engine cylinder is close to the top dead center position of its compression stroke, the compression engine braking system is arranged to achieve an additional opening of the exhaust valve of the cylinder when starting, so that the compressed air can pass through the The exhaust valve is released. This allows the engine to act as a power-consuming air compressor, thereby slowing the vehicle. [0003] In a typical valve train assembly used with a compression engine brake, the exhaust valve is actuated by a rocker arm that engages the exhaust valve by mea...

Claims

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Application Information

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IPC IPC(8): F01L1/18F01L1/24
CPCF01L1/18F01L1/24F01L1/20F01L1/2411F01L13/06F01L13/065F01L1/181F01L1/2416F01L13/0005F01L2001/186
Inventor 小詹姆斯·E·麦卡锡马克·范文杰登
Owner EATON INTELLIGENT POWER LIMITED
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