155results about How to "Reduce flow pressure" patented technology

A fuel / air mixing disk for use in a fuel / air mixing combustor assembly is provided. The disk includes a first face, a second face, and at least one fuel plenum disposed therebetween. A plurality of fuel / air mixing tubes extend through the pre-mixing disk, each mixing tube including an outer tube wall extending axially along a tube axis and in fluid communication with the at least one fuel plenum. At least a portion of the plurality of fuel / air mixing tubes further includes at least one fuel injection hole have a fuel injection hole diameter extending through said outer tube wall, the fuel injection hole having an injection angle relative to the tube axis. The invention provides good fuel air mixing with low combustion generated NOx and low flow pressure loss translating to a high gas turbine efficiency, that is durable, and resistant to flame holding and flash back.

The invention discloses an independent external-mounting maintenance-free multi-stage oil and gas separator assembly. The oil and gas separator assembly is characterized in that a first cyclone separation cavity consists of an oil and gas separator outer shell and an oil and gas separator body shell; a second dispersing separation cavity consists of the oil and gas separator body shell, an oil and gas separator cover and the outer walls of three refine separation conical pipes which are distributed on the circumference at 90 degrees; a third refine cyclone separation cavity consists of the three refine separation conical pipes which are distributed on the circumference at 90 degrees and a central pipe; a fourth reinforcement cyclone separation cavity consists of the three refine separation conical pipes which are distributed on the circumference at 90 degrees, a central pipe, and a cyclone blade; a fifth refine cyclone separation cavity consists of a small refine separation conical pipe arranged in the center of the circumference; a sixth compact and dispersing safety separation cavity consists of a safety valve cavity and a safety valve; an eighth separation cavity consists of a respirator compact plate and a safety damping net; a flow pressure adjusting valve consists of a flow pressure adjusting diaphragm in a respirator and a flow pressure adjusting spring; any installation mechanism consists of an installation support and variable air inlet and outlet pipe included angles; and an oil return cavity consists of a separation conical pipe bottom and an independent separator shell.

A system and method for diagnosing the state of a fuel cell stack are provided. The method includes simultaneously applying currents having respective first and second frequencies to a fuel cell stack and computing Fourier transforms of output currents and voltages from the fuel cell stack based on the applied currents. A real part of a first frequency impedance and an imaginary part of a second frequency impedance are calculated using amplitudes and phases of currents and voltages having the first frequency and the second frequency among the computed output currents and voltages. Further, a state of the fuel cell stack is determined by magnitude of the calculated real part of the first frequency impedance and by magnitude of the calculated imaginary part of the second frequency impedance.