Study liquid length penetration results obtained with a direct acting piezo electric injector

An Experimental formulation for PFI injector penetration length versus time and pressure using high speed spray imaging results

Recently, there have been problems with particulate matter pollution in diesel engines and it has reduced production rate of these engines and also, it has accelerated the development of new technologies for PFI and GDI gasoline engines. The spray characteristics has significant impact on the combustion efficiency, power and emissions on internal combustion engines. In This study, effect of inj...

A Study on the Optimal Actuation Structure Design of a Direct Needle-Driven Piezo Injector for a CRDi Engine

Recently, the high-pressure fuel injection performance of common-rail direct injection (CRDi) engines has become more important, due to the need to improve the multi-injection strategy. A multiple injection strategy provides better emission and fuel economy characteristics than a normal single injection scheme. The CRDi engine performance changes with the type of high-pressure electro-mechanica...

A Three - Channel Piezo - Electric Pressure Recorder

Energy Harvesting from Vibrating Piezo-Electric Structures

The process of capturing the energy from a system’s environment or surrounding and converting it into usable electrical energy is termed as energy harvesting. One form of energy harvesting is to employ piezoelectric materials to harvest energy from vibrating structures. These materials have the ability to absorb the mechanical energy and transform it into electrical energy that can be used to p...

Piezo-electric Thick Films for Sensing

Monolithic piezoelectric sensors commonly used for acoustic emission and ultrasonic inspection are non-conforming, bulky, costly and heavy. This means they do not fit well to complex geometries, they can be susceptible to damage, and on larger structures their cost and weight can be prohibitive. An alternative to this is the use of piezo-electric thick films, which comprise of piezo-electric pa...