Results 71 to 80 of about 60,092 (339)
Transition region ignition characteristics of n-heptane fuel sprays [PDF]
Ignition studies were perferred on monodisperse n-heptane sprays at atmospheric pressure over a range of equivalence ratios and droplet diameters. A capacitive discharge spark ignition system was used as the ignition source, providing independent control
Cernansky, N. P. +2 more
core +1 more source
A mechanism for high-frequency oscillation in ramjet combustors and afterburners [PDF]
, 1956 An experimental investigation was made of the behavior of a small two-dimensional combustion chamber, burning a uniform mixture of air and fuel vapor under conditions of high-frequency oscillation or screech.
Marble, Frank E., Rogers, Don E.
core +1 more source
Advanced Science, EarlyView.This review systematically summarizes recent advances in self‐powered flexible sensing and energy storage systems based on piezoelectric nanogenerators (PENGs). It highlights their fundamental mechanisms, structural designs, and applications in health monitoring, e‐skin, and tactile sensing. The integration of PENGs with supercapacitors or batteries is
Wu‐Lin Xin +8 more
wiley +1 more source
Investigation on The effect of Airgap Distance for Ignition Coils Using Finite Element Methods
Journal of New Results in Science, 2016 – This study is related to the ignition coil which produces spark energy to ignite fuel mixture in cylinder of internal combustion motor. There are some problems that is commonly seen in automotive ignition coil.
Ugur Demir, Mustafa Caner Akuner
doaj
The influence of impurities on the operation of selected fuel ignition systems in combustion engines
Archives of Electrical Engineering, 2016 The paper attempts to determine the impact of fuel impurities on the spark discharge energy and the wear of the spark plug electrode. Spark plugs were analyzed in two typical configurations of the ignition system.
Różowicz Sebastian, Tofil Szymon
doaj +1 more source
Spark Ignition of Monodisperse Fuel Sprays [PDF]
A study of spark ignition energy requirements was conducted with a monodisperse spray system allowing independent control of droplet size, equivalent ratio, and fuel type.
Cernansky, Nicholas P. +2 more
core +1 more source
Optical Investigation of the Influence of In-cylinder Flow and Mixture Inhomogeneity on Cyclic Variability in a Direct-Injection Spark Ignition Engine [PDF]
, 2022 Judith Laichter, Sebastian A. Kaiser
openalex +1 more source
Advanced Science, EarlyView.Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma +4 more
wiley +1 more source
An overview of NASA research on positive displacement general-aviation engines [PDF]
, 1980 The research and technology program related to improved and advanced general aviation engines is described. Current research is directed at the near-term improvement of conventional air-cooled spark-ignition piston engines and at future alternative ...
Kempke, E. E., Jr.
core +1 more source
Non‐Equilibrium Synthesis Methods to Create Metastable and High‐Entropy Nanomaterials
Advanced Science, EarlyView.ABSTRACT Stabilizing multiple elements within a single phase enables the creation of advanced materials with exceptional properties arising from their complex composition. However, under equilibrium conditions, the Hume–Rothery rules impose strict limitations on solid‐state miscibility, restricting combinations of elements with mismatched crystal ...
Shuo Liu +3 more
wiley +1 more source