Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
Book Description
Piston and ring assembly friction has been measured in a single cylinder Cummins 903 diesel. The engine was motored and fired, cooled and uncooled. For uncooled operation, plasma sprayed chromium oxide ring and liner coatings were employed with a synthetic lubricant. The Instantaneous IMEP and Fixed Sleeve methods were used for the friction measurement on a crank angle by a crank angle basis, with a cycle average of about 1.5 to 4 psi fmep. Considerable effort was expended in developing the measurement techniques, with a major effort on the Instantaneous IMEP method. In a parallel effort a bench type, heated, piston ring and liner wear simulator was developed. This permitted rapid screening of promising candidate materials for uncooled engine tests. The plasma sprayed chromium oxide coatings were found to be best.
Piston and Ring Assembly Friction Studies in Cummins 903 Engine
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
Book Description
Piston and ring assembly friction has been measured in a single cylinder Cummins 903 diesel. The engine was motored and fired, cooled and uncooled. For uncooled operation, plasma sprayed chromium oxide ring and liner coatings were employed with a synthetic lubricant. The Instantaneous IMEP and Fixed Sleeve methods were used for the friction measurement on a crank angle by a crank angle basis, with a cycle average of about 1.5 to 4 psi fmep. Considerable effort was expended in developing the measurement techniques, with a major effort on the Instantaneous IMEP method. In a parallel effort a bench type, heated, piston ring and liner wear simulator was developed. This permitted rapid screening of promising candidate materials for uncooled engine tests. The plasma sprayed chromium oxide coatings were found to be best.
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
Book Description
Piston and ring assembly friction has been measured in a single cylinder Cummins 903 diesel. The engine was motored and fired, cooled and uncooled. For uncooled operation, plasma sprayed chromium oxide ring and liner coatings were employed with a synthetic lubricant. The Instantaneous IMEP and Fixed Sleeve methods were used for the friction measurement on a crank angle by a crank angle basis, with a cycle average of about 1.5 to 4 psi fmep. Considerable effort was expended in developing the measurement techniques, with a major effort on the Instantaneous IMEP method. In a parallel effort a bench type, heated, piston ring and liner wear simulator was developed. This permitted rapid screening of promising candidate materials for uncooled engine tests. The plasma sprayed chromium oxide coatings were found to be best.
Quarterly Supplement to the ... Annual Department of Defense Bibliography of Logistics Studies and Related Documents
Author: United States. Defense Logistics Studies Information Exchange
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 204
Book Description
Publisher:
ISBN:
Category : Military research
Languages : en
Pages : 204
Book Description
Energy Research Abstracts
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 596
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 596
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Studies on the Friction Characteristics of Piston Ring in a Diesel Engine
Author: Y. Wakuri
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Engine Instantaneous Frictional Torque and Piston-rings Assembly Friction Contribution During Starting [microform]
Author: Stanislaw L. Marek
Publisher: Ann Arbor, Mich. : University Microfilms International
ISBN:
Category :
Languages : en
Pages : 410
Book Description
Publisher: Ann Arbor, Mich. : University Microfilms International
ISBN:
Category :
Languages : en
Pages : 410
Book Description
Government Reports Announcements & Index
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1254
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1254
Book Description
Piston/ring Assembly Friction Measurement and Modeling
Author: Shyh-Shyan Lin
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 296
Book Description
A STUDY OF PISTON-RING ASSEMBLY FRICTION.
Author: HACI MEHMET URAS
Publisher:
ISBN:
Category :
Languages : en
Pages : 143
Book Description
tension oil ring.
Publisher:
ISBN:
Category :
Languages : en
Pages : 143
Book Description
tension oil ring.
Instantaneous Engine Frictional Torque, Its Components and Piston Assembly Friction
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 197
Book Description
The overall goal of this report is to document the work done to determine the instantaneous frictional torque of internal combustion engine by using a new approach known as (P-[omega]) method developed at Wayne State University. The emphasis has been to improve the accuracy of the method, and apply it to both diesel and gasoline engines under different operating conditions. Also work included an investigation to determine the effect of using advanced materials and techniques to coat the piston rings on the instantaneous engine frictional torque and the piston assembly friction. The errors in measuring the angular velocity, [omega], have been determined and found to be caused by variations in the divisions within one encoder, encoder-to-encoder variations, misalignment within the encoder itself and misalignment between the encoder and crankshaft. The errors in measuring the cylinder gas pressure, P, have been determined and found to be caused by transducer-to-transducer variations, zero drift, thermal stresses and lack of linearity. The ability of the (P-[omega]) method in determining the frictional torque of many engine components has been demonstrated. These components include valve train, fuel injection pump with and without fuel injection, and piston with and without different ring combinations. The emphasis in this part of the research program has been on the piston-ring assembly friction. The effects of load and other operating variables on IFT have been determined. The motoring test, which is widely used in industry to measure engine friction has been found to be inaccurate. The errors have been determined at different loads.
Publisher:
ISBN:
Category :
Languages : en
Pages : 197
Book Description
The overall goal of this report is to document the work done to determine the instantaneous frictional torque of internal combustion engine by using a new approach known as (P-[omega]) method developed at Wayne State University. The emphasis has been to improve the accuracy of the method, and apply it to both diesel and gasoline engines under different operating conditions. Also work included an investigation to determine the effect of using advanced materials and techniques to coat the piston rings on the instantaneous engine frictional torque and the piston assembly friction. The errors in measuring the angular velocity, [omega], have been determined and found to be caused by variations in the divisions within one encoder, encoder-to-encoder variations, misalignment within the encoder itself and misalignment between the encoder and crankshaft. The errors in measuring the cylinder gas pressure, P, have been determined and found to be caused by transducer-to-transducer variations, zero drift, thermal stresses and lack of linearity. The ability of the (P-[omega]) method in determining the frictional torque of many engine components has been demonstrated. These components include valve train, fuel injection pump with and without fuel injection, and piston with and without different ring combinations. The emphasis in this part of the research program has been on the piston-ring assembly friction. The effects of load and other operating variables on IFT have been determined. The motoring test, which is widely used in industry to measure engine friction has been found to be inaccurate. The errors have been determined at different loads.
Government Reports Annual Index
Author:
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1332
Book Description
Publisher:
ISBN:
Category : Government reports announcements & index
Languages : en
Pages : 1332
Book Description