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

Lost motion system and method for fixed-time valve actuation

A technology for subsystems and engine valves, applied to non-mechanically actuated valves, valve devices, engine components, etc., can solve problems such as difficult valve drive system embedding

Inactive Publication Date: 2009-09-02
JACOBS VEHICLE SYST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Embedding a valve actuation system capable of providing precise lost motion and / or return functions in such locations is difficult due to inherent manufacturing tolerances that may exist between the valve actuation system and the valve

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
  • Lost motion system and method for fixed-time valve actuation
  • Lost motion system and method for fixed-time valve actuation
  • Lost motion system and method for fixed-time valve actuation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Hereinafter, a first embodiment of the system and method of the present invention will be described in detail, an example of which is illustrated in the accompanying drawing. Included herein are the inventions comprising systems and methods for controlling engine valve actuation.

[0030] figure 1 One embodiment of the present invention is shown as a valve actuation system 10 in FIG. Valve actuation system 10 includes a lost motion subsystem or variable length system 300 that couples a motion generating device 100 for providing motion to one or more engine valves 200 . Motion generating device 100 provides input motion to lost motion system 300 . The lost motion system 300 is selectively switchable between (1) discarding a portion of the motion input by the motion generating device 100 and (2) delivering the input motion to the engine valve 200 . In this manner, motion communicated to engine valve 200 may be used to generate various engine valve events such as, but n...

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 present invention relates generally to a system and method for actuating one or more valves in an internal combustion engine. In particular, the present invention relates to a system and method that may provide lost motion valve actuation of intake, exhaust, and auxiliary valves in an internal combustion engine.

Description

technical field [0001] The present invention generally relates to a system and method for actuating one or more engine valves (valves) in an internal combustion engine. In particular, the present invention relates to a system and method for providing lost motion valve action for intake, exhaust, and auxiliary valves in an internal combustion engine. Background technique [0002] Engine valves in internal combustion engines need to be actuated in order for the engine to generate active power supply and to generate engine braking. During active powering, one or more intake valves may be opened to allow fuel and air to enter the cylinders for combustion. One or more exhaust valves may be opened to allow combustion gases to escape from the cylinders. The intake, exhaust and / or auxiliary valves may also be opened at different times during the active power supply to recirculate gases to improve emissions. [0003] Engine valve action can also be used to generate engine braking ...

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): F01L9/02F01L1/34F01L1/14F01L13/00F01L13/06F01L13/08
CPCF01L13/08F01L13/0031F01L13/06F01L1/14F01L1/34
Inventor 约翰·J·莱斯特
Owner JACOBS VEHICLE SYST
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