The Role of Piston Distortion on Lubrication in a Reciprocating Engine

The Role of Piston Distortion on Lubrication in a Reciprocating Engine PDF Author: William L. Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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The Role of Piston Distortion on Lubrication in a Reciprocating Engine

The Role of Piston Distortion on Lubrication in a Reciprocating Engine PDF Author: William L. Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Modeling the Effects of Piston Skirt Distortion on the Design of Pistons for Optimum Lubrication in a Reciprocating Engine

Modeling the Effects of Piston Skirt Distortion on the Design of Pistons for Optimum Lubrication in a Reciprocating Engine PDF Author: William Lawrence Blair
Publisher:
ISBN:
Category :
Languages : en
Pages : 196

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Effects of Piston Design and Lubricant Selection on Reciprocating Engine Friction

Effects of Piston Design and Lubricant Selection on Reciprocating Engine Friction PDF Author: Luke Frank Moughon
Publisher:
ISBN:
Category :
Languages : en
Pages : 129

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(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

ASME Technical Papers PDF Author:
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 306

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Tribology of Reciprocating Engines

Tribology of Reciprocating Engines PDF Author: D. Dowson
Publisher: Elsevier
ISBN: 1483102084
Category : Technology & Engineering
Languages : en
Pages : 361

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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

Predictive Modeling of Piston Assembly Lubrication in Reciprocating Internal Combustion Engines PDF Author: Huijie Xu
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages :

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Oils, Rheology, Tribology, and Driveline Fluids

Oils, Rheology, Tribology, and Driveline Fluids PDF Author:
Publisher:
ISBN:
Category : Automobiles
Languages : en
Pages : 310

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Distortion of Turbulence in a Reciprocating Engine Cylinder

Distortion of Turbulence in a Reciprocating Engine Cylinder PDF Author: Victor Wing-wing Wong
Publisher:
ISBN:
Category : Internal combustion engines
Languages : en
Pages : 724

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Engine Tribology

Engine Tribology PDF Author: C.M. Taylor
Publisher: Elsevier
ISBN: 0080875904
Category : Technology & Engineering
Languages : en
Pages : 311

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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

Finite Difference Solution to Reynold's Lubrication Equation in the Piston Ring Pack of a Reciprocating Engine PDF Author: Alejandro Alberto Sales Sarrapy
Publisher:
ISBN:
Category :
Languages : en
Pages : 254

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