EINRICHTUNG ZUR FUNKTIONSPRUEFUNG VON VENTILEN VON KOLBENMASCHINEN

An operational testing device for inlet valves and outlet valves of reciprocating engines which are separately driven for an operational test comprises at least one microphone arranged in the inlet pipe and at least one microphone arranged in the outlet pipe of the engine, a combined amplifier and e...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WOESS GERHARD, SCHREIBER ERICH
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MECHANICAL ENGINEERING PHYSICS STEAM ENGINES TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An operational testing device for inlet valves and outlet valves of reciprocating engines which are separately driven for an operational test comprises at least one microphone arranged in the inlet pipe and at least one microphone arranged in the outlet pipe of the engine, a combined amplifier and electronic filter, and a gate circuit to which the signals of the microphones are supplied after passing the amplifier and electronic filter. To enable a clear identification of the microphone signals of a defective valve as compared to signals generated by valve noise and extraneous noise, a gate circuit is controlled according to the crank angle of the engine, at least one limit value switch is provided to which the signal is forwarded via the gate circuit in a predetermined crank angle area, and an interpretive circuit is controlled according to the crank angle, actuated by the output signal of the limit value switch and allocating the output signal to the particular valve causing the signal.