摘要:
An example method of initiating a maintenance action on a component includes monitoring (54) an electrical current required to maintain a steady state position. The method then initiates a maintenance action (62) on the component based on the monitored current.
摘要:
Offenbart ist ein hydraulisches System mit einem Stellglied (2) in Form eines Lenkzylinders. Ein erster Anschluss (A1) des Stellglieds (2) zur Verstellung des Stellglieds in eine erste Richtung ist über eine erste Zuleitung (20) mit einer Druckmittelversorgung (44) verbindbar. Über eine zweite Zuleitung (24) ist ein zweiter Anschluss (A2) des Stellglieds (2) mit der Druckmittelversorgung verbindbar. Über eine jeweilige Rückleitung (22, 26) ist ein jeweiliger Anschluss (A1, A2) mit einer Druckmittelsenke (38) verbindbar. In einer jeweiligen Zuleitung (20, 24) und einer jeweiligen Rückleitung (22, 26) ist zumindest ein Ventil (48-62) zum Steuern eines Druckmittelvolumenstroms vorgesehen. Über eine Steuervorrichtung (68) ist über einen Drucksensor (90, 94) ein Systemdruck erfassbar, mit dem bei einer bestimmten Ansteuerung der Ventile auf Fehler der Ventile geschlossen werden kann.
摘要:
The present invention relates generally to a system that monitors the condition of hydraulic systems for an aircraft or for other applications and, more particularly, to a system and method for detecting leakage within the hydraulic system aboard an aircraft. Such system is detecting hydraulic liquids by extended sensors based on the collapse of percolation conductivity (COPC) which sensors are covering an area in the aircraft.
摘要:
The subject of the invention is a device for carrying out a test on a fluid circuit of an aircraft, comprising a test unit (14) which comprises, at the inlet, at least one means of connection (130) to a pressurized gas supply, which means is connected to means (132) for adjusting the pressure of the gas provided by the supply according to the test to be carried out, and, at the outlet, at least two connection means (134) connected to the means (132) for adjusting the pressure of the gas, characterized in that at least two connection means (134) have different dimensions tailored to a range of pressures or a given pressure.
摘要:
Procédé de détection de défaillance d'une servovalve (1) à 2 étages dont l'organe mobile de puissance (7) est relié au rotor du moteur couple (MC) de l'étage de pilotage par un retour mécanique (6). Un signal de dysfonctionnement est généré en réponse à la détection d'une venue en butée du rotor du moteur couple. L'invention comprend également une servovalve pourvue de moyens destinés à mettre en oeuvre un tel procédé.
摘要:
An example method of initiating a maintenance action on a component includes monitoring (54) an electrical current required to maintain a steady state position. The method then initiates a maintenance action (62) on the component based on the monitored current.
摘要:
A method and apparatus for monitoring a pneumatic system. A number of parameters are monitored using a monitoring device connected to the pneumatic system, an energy harvesting unit configured to generate electrical energy from a gas in the pneumatic system, and a controller. The monitoring device comprises a number of sensors configured to detect the number of parameters. The controller is in communication with the number of sensors and the energy harvesting unit and is configured to process measurements for the number of parameters detected by the number of sensors and control operation of the energy harvesting unit. The number of sensors and the controller are powered by the energy harvesting unit. The monitoring device is powered using the electrical energy generated by the energy harvesting unit.
摘要:
Cutoff valve control apparatus capable of predicting a failure of devices therein with a failure diagnosis based on an operation test when the cutoff valve control apparatus is set. The cutoff valve control apparatus includes a judging device to judge a normal state or an abnormal state of the apparatus based on a pressure characteristic of an internal pressure of a cylinder measured with a pressure sensor when an air is supplied to the cylinder of an air cylinder from an air supply source, and a memory device storing beforehand the pressure characteristic of the internal pressure of the cylinder of an initial normal operation of the apparatus and the pressure characteristic of a failure prediction boundary.