Results 231 to 240 of about 77,888 (282)

A self-deactivating piston for a piston corer

Ocean Engineering, 1970
Abstract Described is a piston containing an internal valve that is closed during penetration and open during extraction of the corer. It requires no cocking or other preparatory steps before use, and prevents liner collapse, core distortion, and consequent erroneous interpretation of the core materials as sometimes occurs when a conventional piston ...
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On the piston problem in gasdynamics

Mechanics Research Communications, 1984
In a preceding paper [The moving load on a string as free boundary problem (to be published)] the author treated a free boundary problem concerning the moving load on a string; now he uses his method to the resolution of this typical example of a free boundary problem in gasdynamics.
openaire   +3 more sources

Constraint enforcement of piston motion in a free-piston engine

2014 American Control Conference, 2014
Precise control of piston turnaround location is essential for reliable free-piston engine (FPE) operation. In this paper we derive a discrete-time, control-oriented, implicit model that describes FPE clearance height behavior by applying an energy balance to the Otto cycle.
Kevin Zaseck, Matthew Brusstar, Ilya V. Kolmanovsky   +2 more
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Study of the piston-rotation technique for piston-cylinder devices

Review of Scientific Instruments, 1978
In piston-cylinder studies of reconstructive phase transitions, piston rotation plays a more subtle role than has previously been thought. Rotation of the piston not only relieves sliding friction, but also helps to activate sluggish transformations.
A B, Wolbarst, J B, Clark, P W, Richter
openaire   +2 more sources

Piston Rings, Pistons, and Cylinders

SAE Technical Paper Series, 1962
openaire   +1 more source

Characteristic analysis and energy efficiency of an oil-free dual-piston linear compressor for household refrigeration with various conditions

Energy, 2023
Tingting Zhu, Huiming Zou, Jinghui Cai
exaly  

Liquid piston gas compression

Applied Energy, 2009
Perry Y Li, James D Van De Ven
exaly  

The Piston

2013
The piston, due to its functions of primary importance, is one of the most refined components of the internal combustion engine.This article, following the evolution of the piston up to the present day, focuses principally on the new materials currently used and innovations in processing techniques.
openaire   +1 more source

Predictive piston motion control in a free-piston internal combustion engine

Applied Energy, 2010
R Mikalsen, A P Roskilly
exaly  

Piston pump and piston ring

Sealing Technology, 2006
openaire   +1 more source