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Item Information   Holdings       More by this author     Senger, Steven.     Subjects     Lubricating oils -- Testing     Internal combusion engines -- Lubrication     MSE Project.     Browse Catalog     by author:      Senger, Steven.       by title:      Methods of crankcase...         MARC Display

Methods of crankcase environment monitoring in four cycle wet sump engines / by Steven Senger. by Senger, Steven. Subjects Lubricating oils -- Testing   Internal combusion engines -- Lubrication   MSE Project. Description:  57 leaves : ill. ; 29 cm. Contents:  Advisor: Dr. James Mallman. Committee members: Dr. Cynthia Barnicki, Dr. Matthew Panhans. Introduction -- Stage one - engine oil characteristics and states of operation -- Stage one - conclusions -- Stage two - simple monitoring devices -- Stage two - conclusions -- Recommendations. Kohler Company, Engine Division is the manufacturer of 4-cycle, one and two cylinder, air cooled, wet sump, utility engines. These engines range in horsepower rating from 6 to 26. The process used within Kohler to request project feasibility studies and product development is called the inquiry process. An inquiry request was submitted, 067-97 C11-25 Oil Sentry System, to investigate switching from an oil pressure switch to a float type oil level sensor. This Inquiry request has been closed due to the estimated magnitude and expense of the change. Because of this inquiry, some interesting questions were asked regarding the oil status monitoring systems we employ. Questions like: 1. Which is a better method: float or pressure switch? 2. Are there other cost effective tools for monitoring the state of oil? 3. What do we know about oil as it progresses between acceptable and unacceptable states? 4. What are acceptable and unacceptable operating conditions? The auto industry has made numerous advances in the monitoring and control of modern engines. These feedback devices and controls allow for elevated environment and engine management practices. They can be very expensive and complicated to implement. Most automobiles employ a Central Processing Unit (CPU) for control of the fuel injection strategy as well as many other features. The cost of adding another sensor becomes incidental where a CPU is already employed. Until recently, all utility engine manufacturers used carburetors for fuel delivery thus forgoing an expensive CPU. Kohler Company released, in June of 1997, a CPU driven fuel injected engine. This engine is still in its infancy. The parameters that make any given engine different are as much intrinsic as extrinsic. Theses differences influence the changes in oil ever its useful life. Where one device or monitoring technique may work well in an engine it may not function at all in another. The characteristic changes are not quite as dramatic within engine classifications as between engine classifications. An example of this would be different rates of oxidation between air-cooled and liquid-cooled engines. The oil in an air-cooled engine is more inclined to oxidation because of elevated sump temperatures. The goal of this project was to study the engine oil for a Kohler Command Single horizontal crankshaft engine and attempt to advance in the field monitoring practices of engine oil. This project will be executed in two stages. Stage one will focus on identifying and increasing an understanding of engine oil characteristics from new to degraded and contaminated. Stage two will explore utilization of simple devices to monitor and feedback the working state of the engine oil based on characteristics observed in stage one. Stage one will be addressed in the fall quarter in the 1997/1998 school year. Stage two and project completion will be addressed in the winter quarter of the 1997/1998 school year.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .S46 1998 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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