Abstract: A combustor for a gas turbine engine having a porous outer metallic shell and a thin-walled, nonporous ceramic liner whose backside is impingement cooled, with only primary and secondary openings in the ceramic liner for delivering pressurized primary air and dilution air to the combustion zone.

Abstract: A voltage divider circuit is provided which can be fabricated as a portion of a monolithic integrated circuit without requiring any external capacitors. The voltage divider circuit has a pair of capacitors which are alternately switched between series connection and parallel connection to divide an input supply voltage. The voltage divider circuit can thereby provide a second supply voltage of one half the input supply voltage.

Abstract: A voltage tripler for multiplying a DC voltage from a battery to provide a driving voltage for an LCD display in a digital clock. The circuit includes a charging capacitor and two storage capacitors and a plurality of switches for interconnecting the capacitors with the battery. The switches are controlled by means of driving circuitry which provides break-before-make type switching. The operation of the circuit is divided into four phases. During an initial phase the charging capacitor is charged to the voltage of the battery. During the second phase the charging capacitor is connected in parallel with one of the storage capacitors in order to transfer a portion of the charge to the storage capacitor. During the third phase the charging capacitor is again connected to the battery to recharge the charging capacitor. During the fourth phase, the charging capacitor is connected in parallel with the other storage capacitor so as to transfer charge to the storage capacitor.