Abstract: A hydraulic system (12) for an aircraft (10), wherein the hydraulic system (12) includes a hydraulic power pack (14), a hydraulic fluid reservoir (28) and a hydraulic pump (30), a hydraulic consumer (18), a high-pressure supply line (38) supplying the hydraulic consumer (18) with hydraulic fluid under higher pressure, and a low-pressure return line (40) returning hydraulic fluid under lower pressure from the hydraulic consumer (18); heating device (42) with a short-cut line (44) connecting the high-pressure supply line (38) with the low-pressure return line (40) and a heater valve (46) for opening and closing the short-cut line (44), and a control and monitoring unit (43). Temperature management includes automatically controlling a fluid temperature by monitoring the fluid temperature and controlling the heater valve (46).

Abstract: An apparatus and method for hydraulically powering at least one consumer of a hydraulic system of an aircraft is disclosed including a first electrical power source and a first electrically driven motor pump (MPU1) electrically powered by the first electrical power source, a second electrical power source and a second electrically driven motor pump (MPU2) electrically powered by the second electrical power source (B), and a hydraulic power generation control which controls a supply of electrical energy from the first and second electrical power sources to the first and second motor pumps (MPU1, MPU2). A method is disclosed for determining the actual available electrical power (APA, APB) of each of the first and second electrical power sources and to set a load factor (UPA, UPB) of each motor pump in order to share a load to generate hydraulic power demanded from the at least one consumer between the first and second motor pumps.

Abstract: Apparatus for preventing fluid spray at a leakage area of a fluid pipe comprises at least one first enveloping element and at least one second enveloping element which encloses the fluid pipe so as to be flush with it, and which are circumferentially interrupted, wherein the circumferential interruptions of the enveloping elements are arranged so as to be offset relative to each other. In this way, fluid spray formation may be prevented in an economical way. The simple design ensures easy installation and economical production.

Abstract: Apparatus for preventing fluid spray at a leakage area of a fluid pipe comprises at least one first enveloping element and at least one second enveloping element which encloses the fluid pipe so as to be flush with it, and which are circumferentially interrupted, wherein the circumferential interruptions of the enveloping elements are arranged so as to be offset relative to each other. In this way, fluid spray formation may be prevented in an economical way. The simple design ensures easy installation and economical production.