valve margin


valve margin
The width of the edge of the valve head between the top of the valve and the edge of the face. Too narrow a margin results in preignition and valve damage through over-heating.

Dictionary of automotive terms. 2015.

Look at other dictionaries:

  • valve — A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types. See ABS relay valve accumultor valve air valve carburetor air control valve air gulp valve …   Dictionary of automotive terms

  • margin — [1] The return an intermediary achieves on the selling price of the article. That is, if the intermediary buys a product for $1 and sells it for $1.50, the margin is calculated. For example, .50 (i.e., $1.50 $1) divided by $1.50, or 33%. See… …   Dictionary of automotive terms

  • valve — 1. A fold of the lining membrane of a canal or other hollow organ serving to retard or prevent a reflux of fluid. 2. Any formation or reduplication of tissue, or flaplike structure …   Medical dictionary

  • margin — (Class Ostracoda): Entire margin of carapace (or valve) when viewed from the side. Free margin refers to margin of carapace not held together by hinge (i.e., anteriorly, ventrally, posteriorly), while contact margin is restricted to that part of… …   Crustacea glossary

  • valve — Lateral part of divided carapace commonly joined to opposite part by hingement along dorsal mid line (e.g., Ostracoda, Conchostraca, Leptostraca) [Moore and McCormick, 1969]. Lateral part of divided carapace, commonly joined to opposite part by… …   Crustacea glossary

  • Left margin of heart — Sternocostal surface of heart. Heart seen from above …   Wikipedia

  • Mitral valve — Anterior (frontal) view of the opened heart. White arrows indicate normal blood flow. (Mitral valve labeled at center right.) …   Wikipedia

  • List of valve amplifier designs — Main article: Valve audio amplifier Some of the best known valve amplifiers are listed here. Contents 1 Leak TL/12 2 Williamson 3 Mullard 5 10 4 Dynaco …   Wikipedia

  • Walschaerts valve gear — The Walschaerts valve gear is a type of steam engine valve gear invented by Belgian railway mechanical engineer Egide Walschaerts in 1844. The gear is sometimes named without the final s , since it was incorrectly patented under that name. It was …   Wikipedia

  • Notable historic valve amplifier designs — Some of the best known valve amplifiers are listed here.Leak TL/12The first commercially produced amplifier with distortion of 0.1% was the LEAK Type 15 Point One of 1945, using KT66 vacuum tubes (valves) connected as triodes, with 26dB feedback… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.