Stewart, Robert (2007) Design of electro-hydraulic controlled poppet valves. [USQ Project] (Unpublished)
[Abstract]: The purpose of this report is to outline all the necessary aspects that must be considered in the design of a fully variable “poppet” valve within the current generation spark ignition or compression ignition engines. This encompasses all of the mechanical and
electrical facets involved with the design, implementation, calibration and also investigates the predicted benefits of such a system. The report includes details of the pumping system, actuating system, control solenoids and control system.
Other considerations are given to the implications upon the immediate world technically, socially, environmentally and financially with the subsequent completion and integration of the design into the automotive industry.
Due to the time restrictions of this course, integration of the system onto a current generation engine was impossible, however the successful completion of the electronics involved with the control system can be seen to be working; causing the high voltage solenoids to pulse at the required time and duration on the test bench for the approximate desired output. Once this system is retrofitted the pulsed fluid from the high voltage solenoid would contain enough fluid force to lift the appropriate “poppet” valve from its seat.
In the completion of this report it is able to be seen that this system or similar will revolutionize both current spark ignition and compression ignition engines in terms of overall power, economy and emission reduction to a degree that has never been seen before in the automotive industry. The conservation of the environment is a high priority in Australia and internationally. Without delving into the intricacies of the debate of greenhouse gases, this report recognizes that vehicle emissions contribute a significant amount pollution. This is why it is imperative to design and implement more efficient engines globally via technologies such as this.
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|Item Type:||USQ Project|
|Item Status:||Live Archive|
|Depositing User:||epEditor USQ|
|Faculty / Department / School:||Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering|
|Date Deposited:||29 Feb 2008 04:40|
|Last Modified:||02 Jul 2013 22:59|
|Uncontrolled Keywords:||electro-hydraulic; poppet valve; spark ignition; compression ignition; automotive industry; engine; pollution|
|Fields of Research (FoR):||09 Engineering > 0913 Mechanical Engineering > 091399 Mechanical Engineering not elsewhere classified
09 Engineering > 0902 Automotive Engineering > 090299 Automotive Engineering not elsewhere classified
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