Abstract:
A combustion apparatus comprising: an air inlet (1); a first measurement device (51) for measuring the amount of a gas in the air inlet (1); at least one combustor (5); a plurality of fuel supply lines (17, 19) to the combustor(s) (5); an exhaust (13); a second measurement device (15) for measuring the amount of the gas in the exhaust (13); and a control unit (25) arranged to vary the fuel supply in the plurality of fuel supply lines (17, 19) so as to control the amount of the gas in the exhaust (13), the variation being made in dependence upon both the measured amount of the gas in the air inlet (1) and the measured amount of the gas in the exhaust (13).
Abstract:
A thermally enhanced memory module is claimed. The memory module includes a first extended electrical plane, and a thermal connection between a surface plane of its substrate and the first extended electrical plane. A first thermal management, such as a heat spreader, is coupled to the surface plane of the substrate and to the thermal connection.
Abstract:
Systems and methods of supporting communications over a common network connection in a master-slave field bus network with a first type of packet formatted with a time -sensitive protocol and a second type of packet formatted with a non-time-sensitive protocol are provided. The slave devices are configured with filters to prevent the first type of packet from reaching a configurator and the second type from reaching a master device. The slave devices are also configured with arbitration logic so that the packets formatted with the time-sensitive protocol are provided with a priority over the packets formatted with the non-time-sensitive protocol.
Abstract:
A device for communicating and providing power over a cable having at least two conductors comprises a first inductor having a primary and a secondary winding, a second inductor having a primary and a secondary winding, the primary winding of the second inductor being coupled at one end to the primary winding of the first inductor, each of the secondary windings of the first and second inductors being coupled to one of the at least two conductors in the cable. The device further includes a transceiver coupled to the primary windings of the first and second inductors, wherein the first inductor is coupled to local ground potential, in a manner that varies the potential of each of the said conductors symmetrically from an average potential.
Abstract:
Systems and methods for providing Safe Torque Off signals using communication wires used for control signaling. Single channel Safe Torque Off signals can be provided as a DC voltage or AC voltage across two sets of twisted pair wires. Alternatively, two Safe Torque Off signals can be provided using both a DC voltage and an AC voltage across the two sets of twisted pair wires.
Abstract:
A decentralized motor drive arrangement provides high-voltage operational power and low-voltage standby power from a centralized distribution unit to remote motor drives using the same pair of interconnection power wires. The distribution unit includes a low- voltage power source which has one output terminal diode coupled to one of the output terminals of a high-voltage power source to form one output wire of the distribution unit. The other output terminals of the low-voltage and high-voltage power sources are directly coupled to form the other distribution unit outgoing power wire.
Abstract:
In accordance with the invention there is provided a burner arrangement (100) for a combustor of a gas turbine engine comprising a burner body (1) comprising a cut-out (14) and a burner face (13), the cut-out (14) piercing the burner face (13), a sensor device (20) installed in the cut-out (14) and comprising a first part (21) being fixed to the burner body (1) and comprising a second part (22), the second part (22) comprising a tip surface (23), the sensor device (20) being configured such that the second part (22) is able to move relative to the burner face (13), and further comprising a data evaluation unit (30). The first part (21) is fixed to the burner body (1) such that it is agitated by vibrations of the burner body (1) during Operation of the gas turbine engine, The burner face (13) and the tip surface (23) are arranged such that they are affected by deposition (24, 25) of combustion residues during Operation of the gas turbine engine. The sensor device (20) is arranged to generate Information Signals (31) corresponding to a magnitude and/or a period of the oscillation of the second part (22) relative to the first part (21). The data evaluation unit (30) is arranged to collect the received Information signals (31) over a period of time and to determine a grade of deposition (24, 25) of combustion residues on the burner face (13) by evaluating the collected Information signals (31).
Abstract:
The present invention relates to a method for analysing a droplet fraction of an oil mist sample of a gas turbine. A collecting device collects the oil mist sample (110; 120), wherein the collecting device (110; 120) is arranged within a breather pipe (130) which is coupled to the gas turbine such that oil mist is flowing through the breather pipe (130).The droplet fraction is separated from a gaseous fraction of the oil mist sample by a filter device (105), wherein the filter device (105) is soaked with the droplet fraction, the droplet fraction is extracted from the filter device (105) by using a tetrachloroethylene solvent. A composition of the droplet fraction is analysed by a spectrometer (107).
Abstract:
The present invention relates to an analysing arrangement (100) for analysing a composition of a fluid, such as oil mist, of an engine, e.g. a gas turbine. The analysing arrangement (100) comprises a breather pipe (130) which is coupleable to the gas turbine such that at least a part of the fluid is flowing through the breather pipe (130), a first collecting device (110) for collecting a first sample of the fluid, wherein the first collecting device (110) is configured for providing a first composition analysis of the first sample and a second collecting device (120) for collecting a second sample of the fluid, wherein the second collecting device (120) is configured for providing a second composition analysis of the second sample. The first collecting device (110) and the second collecting device (120) are arranged inside the breather pipe (130) such that the first collecting device (110) and the second collecting device (120) are exposed to a common flow characteristic of the fluid inside the breather pipe (130).