Author: William L. Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The Role of Piston Distortion on Lubrication in a Reciprocating Engine
Author: William L. Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
Modeling the Effects of Piston Skirt Distortion on the Design of Pistons for Optimum Lubrication in a Reciprocating Engine
Author: William Lawrence Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 196
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 196
Book Description
Effects of Piston Design and Lubricant Selection on Reciprocating Engine Friction
Author: Luke Frank Moughon
Publisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description
(Cont.) Moreover, increasing oil supply (i.e., increasing effective oil film thickness) tends to decrease net friction by promoting hydrodynamic lubrication. Changes to piston geometry were shown to have significant effects on friction. In order to maximize hydrodynamic support, the pressure must be distributed evenly across the piston skirt; this can be achieved by making the skirt-liner clearance as even and smooth as possible. The model confirmed that skirt profiles with gentle slopes tend to reduce net friction, as do skirt ovality values that closely approximate the shape of the liner. Moreover, the grooves machined into the skirt surface were shown to have a deleterious effect on friction if their amplitude was large relative to the thickness of the oil film. Using relatively small-amplitude grooves facilitates oil movement and retention without leading to direct contact with the liner. After piston geometry has been optimized to promote hydrodynamic lubrication, further refinements, such as reducing oil viscosity, are possible.
Publisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description
(Cont.) Moreover, increasing oil supply (i.e., increasing effective oil film thickness) tends to decrease net friction by promoting hydrodynamic lubrication. Changes to piston geometry were shown to have significant effects on friction. In order to maximize hydrodynamic support, the pressure must be distributed evenly across the piston skirt; this can be achieved by making the skirt-liner clearance as even and smooth as possible. The model confirmed that skirt profiles with gentle slopes tend to reduce net friction, as do skirt ovality values that closely approximate the shape of the liner. Moreover, the grooves machined into the skirt surface were shown to have a deleterious effect on friction if their amplitude was large relative to the thickness of the oil film. Using relatively small-amplitude grooves facilitates oil movement and retention without leading to direct contact with the liner. After piston geometry has been optimized to promote hydrodynamic lubrication, further refinements, such as reducing oil viscosity, are possible.
ASME Technical Papers
Author:
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 306
Book Description
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 306
Book Description
Tribology of Reciprocating Engines
Author: D. Dowson
Publisher: Elsevier
ISBN: 1483102084
Category : Technology & Engineering
Languages : en
Pages : 361
Book Description
Tribology of Reciprocating Engines documents the proceedings of the 9th Leeds-Lyon Symposium on Tribology held at the University of Leeds, England on September 7-10, 1982. This book emphasizes advances in the working principals of the tribological components that operate with relative motion. The topics discussed include the dynamic analysis of engine bearing systems, measurement of oil film thickness in diesel motor main bearings, and temperature variations in crankshaft bearings. The theoretical and experimental study of ring-liner friction, tribology in the cylinders of reciprocating compressors, and lubricant properties in the diesel engine piston ring zone are also described. This text likewise considers the metallurgy of scoring and scuffing failure, impact of oil contamination on wear and energy losses, and role of tappet surface morphology and metallurgy in cam/tappet life. This compilation is a good reference for triblogists, lubrication engineers, and specialists researching on reciprocating engines.
Publisher: Elsevier
ISBN: 1483102084
Category : Technology & Engineering
Languages : en
Pages : 361
Book Description
Tribology of Reciprocating Engines documents the proceedings of the 9th Leeds-Lyon Symposium on Tribology held at the University of Leeds, England on September 7-10, 1982. This book emphasizes advances in the working principals of the tribological components that operate with relative motion. The topics discussed include the dynamic analysis of engine bearing systems, measurement of oil film thickness in diesel motor main bearings, and temperature variations in crankshaft bearings. The theoretical and experimental study of ring-liner friction, tribology in the cylinders of reciprocating compressors, and lubricant properties in the diesel engine piston ring zone are also described. This text likewise considers the metallurgy of scoring and scuffing failure, impact of oil contamination on wear and energy losses, and role of tappet surface morphology and metallurgy in cam/tappet life. This compilation is a good reference for triblogists, lubrication engineers, and specialists researching on reciprocating engines.
Predictive Modeling of Piston Assembly Lubrication in Reciprocating Internal Combustion Engines
Author: Huijie Xu
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages :
Book Description
Oils, Rheology, Tribology, and Driveline Fluids
Author:
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 310
Book Description
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 310
Book Description
Distortion of Turbulence in a Reciprocating Engine Cylinder
Author: Victor Wing-wing Wong
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages : 724
Book Description
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages : 724
Book Description
Engine Tribology
Author: C.M. Taylor
Publisher: Elsevier
ISBN: 0080875904
Category : Technology & Engineering
Languages : en
Pages : 311
Book Description
Customer expectations and international competition are obliging car and commercial vehicle manufacturers to produce more efficient and cleaner products in shorter product cycle times. The consideration of Engine Tribology has a leading role to play in helping to achieve these goals. Specific areas of interdisciplinary interest include: design influences on fuel economy and emissions; new materials (ceramics, steels, coatings, lubricants, additives); low viscosity lubricants; and low heat rejection (adiabatic) engines. This volume gives a detailed and current review on some basic features of tribology particularly associated with internal combustion engines such as: lubrication analysis relevant to plain bearings, Hertzian contact theory and elastohydrodynamic lubrication associated with cams and followers and friction and wear in a general context. Several chapters examine engine bearings, valve trains, (cams and followers) and piston assemblies. For each machine element a background introduction is followed by design interpretations and a consideration of future developments. The important topic of materials, solids and lubricants is focused upon in the concluding chapters. The work will be of interest to engineers and researchers in the automobile, automotive products, petroleum and associated industries.
Publisher: Elsevier
ISBN: 0080875904
Category : Technology & Engineering
Languages : en
Pages : 311
Book Description
Customer expectations and international competition are obliging car and commercial vehicle manufacturers to produce more efficient and cleaner products in shorter product cycle times. The consideration of Engine Tribology has a leading role to play in helping to achieve these goals. Specific areas of interdisciplinary interest include: design influences on fuel economy and emissions; new materials (ceramics, steels, coatings, lubricants, additives); low viscosity lubricants; and low heat rejection (adiabatic) engines. This volume gives a detailed and current review on some basic features of tribology particularly associated with internal combustion engines such as: lubrication analysis relevant to plain bearings, Hertzian contact theory and elastohydrodynamic lubrication associated with cams and followers and friction and wear in a general context. Several chapters examine engine bearings, valve trains, (cams and followers) and piston assemblies. For each machine element a background introduction is followed by design interpretations and a consideration of future developments. The important topic of materials, solids and lubricants is focused upon in the concluding chapters. The work will be of interest to engineers and researchers in the automobile, automotive products, petroleum and associated industries.
Finite Difference Solution to Reynold's Lubrication Equation in the Piston Ring Pack of a Reciprocating Engine
Author: Alejandro Alberto Sales Sarrapy
Publisher:
ISBN:
Category :
Languages : en
Pages : 254
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 254
Book Description