Engine Valve Seat and Insert Wear

1989 ◽  
Author(s):  
R. van Diesel ◽  
G. C. Barber ◽  
J. M. Larson ◽  
S. L. Narasimhan
Keyword(s):  
Valve Seat ◽  
Engine Valve

In-Line Inspection of Engine Valve Seats Using a Non-Contact Range Sensor

2008 ◽  
Author(s):  
Vijay Srivatsan ◽  
Bartosz Powałka ◽  
Reuven Katz ◽  
John Agapiou
Keyword(s):  
Combustion Engine ◽  
Cone Angle ◽  
Valve Seat ◽  
Cross Sectional ◽  
Engine Valve ◽  
Coordinate Measurement ◽  
Range Sensor ◽  
Minimum Number ◽  
High Degree ◽  
Analyze Data

This paper presents a methodology for the inspection of geometric features on an internal combustion engine valve seat. Inspection of valve seat geometry using a high-precision non-contact range sensor is investigated. A method that can extract the cone angle, the valve seat length and the roundness of the cone surface has been presented. In-line implementation requires a methodology to analyze data from a minimum number of parallel cross sectional profiles of the valve seat. An in-line valve seat inspection prototype machine with two axes of motion that utilizes the method presented in this paper is presented. Validation of the method on several valve seat samples shows a high degree of repeatability, and the results are comparable to coordinate measurement machine measurements of the same samples.

scholarly journals New Copper Based Composite for Engine Valve Seat Directly Deposited onto Aluminium Alloy by Laser Cladding Process

1993 ◽  
Vol 57 (10) ◽  
pp. 1114-1122 ◽  
Author(s):  
Kouji Tanaka ◽  
Takashi Saito ◽  
Yoshio Shimura ◽  
Kazuhiko Mori ◽  
Minoru Kawasaki ◽  
...  
Keyword(s):  
Aluminium Alloy ◽  
Laser Cladding ◽  
Valve Seat ◽  
Engine Valve ◽  
Laser Cladding Process

Microstructure and Properties of Forging Engine Valve Seat

2011 ◽  
Vol 335-336 ◽  
pp. 552-555
Author(s):  
Zhi De Huang
Keyword(s):  
Cast Iron ◽  
Centrifugal Casting ◽  
Heat Treating ◽  
M7c3 Carbide ◽  
Valve Seat ◽  
Engine Valve ◽  
Microstructure And Properties ◽  
Strength And Plasticity

Microstructure and properties of Forging high Cr cast iron were investigated according to the requirements for production and application of engine valve seat. It is found that the microstructure of Forging high Cr cast iron consists of tempering martensite, M7C3 carbide and austenite. The strength ,and plasticity and hardness of Forging high Cr cast iron after heat treating is higher than that of centrifugal casting high Cr cast iron. So the Forging high Cr cast iron can meet the application demand of the engine valve seat.

A Measuring Method of Circular Run-Out in any Direction of Valve Seat Related to the Centerline of the Valve Guide

2012 ◽  
Vol 482-484 ◽  
pp. 1759-1762 ◽  
Author(s):  
Wei Ying Piao ◽  
Yi Bao Yuan ◽  
Tao Sun ◽  
Lei Wang
Keyword(s):  
Mathematic Model ◽  
Measuring Method ◽  
Conical Surface ◽  
Valve Seat ◽  
Engine Valve

The difficulty of measuring the run-out of engine valve seat related to the centerline of the valve guide is the determination of the datum axis. A method that the gauge was fixed on the conical surface of the valve seat was chosen. One sensor on the conical surface of the gauge measures the run-out of the valve seat related to the centerline of the gauge. Another two sensors of the gauge measures the centerline of the valve guide. The mathematic model of measurement is established, the run-out of the valve seat related to the centerline of the valve guide can be archived.

The effect of operating conditions on heavy duty engine valve seat wear

Wear ◽  
1996 ◽  
Vol 201 (1-2) ◽  
pp. 15-25 ◽  
Author(s):  
Y.S. Wang ◽  
S. Narasimhan ◽  
J.M. Larson ◽  
J.E. Larson ◽  
G.C. Barber
Keyword(s):  
Operating Conditions ◽  
Heavy Duty ◽  
Valve Seat ◽  
Engine Valve

scholarly journals New Copper Based Composite for Engine Valve Seat Directly Deposited onto Aluminum Alloy Using Laser Cladding Process.

Materia Japan ◽  
1994 ◽  
Vol 33 (4) ◽  
pp. 429-431 ◽  
Author(s):  
Kazuhiko Mori ◽  
Hiroyuki Murase ◽  
Minoru Kawasaki ◽  
Takashi Saito ◽  
Yoshio Shimura
Keyword(s):  
Aluminum Alloy ◽  
Laser Cladding ◽  
Valve Seat ◽  
Engine Valve ◽  
Laser Cladding Process
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