Westinghouse Electric

About: Westinghouse Electric is a company organization based out in Cranberry Township, Pennsylvania, United States. It is known for research contribution in the topics: Brake & Circuit breaker. The organization has 27959 authors who have published 38036 publications receiving 523387 citations.

Microwave film bulk acoustic resonator and manifolded filter bank

Abstract: A film bulk acoustic resonator (FBAR) configured as a coplanar transmission line structure. A film resonator formed over an opening in a substrate is connected to associated circuitry by one or more transmission lines formed on the substrate. The coplanar ground plane of this structure provides a simple mechanism for providing a true ground connection to the resonator without the need for vias passing through the substrate. The transmission line connection eliminates the need for wirebonds, thus simplifying fabrication, allowing the device to be more easily modified for computer simulation, and facilitating the operation of the device at microwave frequencies. Embodiments for standard, stacked, and 3-port FBAR's as well as a filter bank consisting of a plurality of coplanar 3-port FBAR's, are described.

Solid oxide fuel cell generator with removable modular fuel cell stack configurations

Abstract: A high temperature solid oxide fuel cell generator produces electrical power from oxidation of hydrocarbon fuel gases such as natural gas, or conditioned fuel gases, such as carbon monoxide or hydrogen, with oxidant gases, such as air or oxygen. This electrochemical reaction occurs in a plurality of electrically connected solid oxide fuel cells (120) bundled and arrayed in a unitary modular fuel cell stack disposed in a compartment in the generator container. The use of a unitary modular fuel cell stack in a generator is similar in concept to that of a removable battery. The fuel cell stack (100) is provided in a pre-assembled self-supporting configuration where the fuel cells are mounted to a common structural base (102) having surrounding side walls (130) defining a chamber. Associated generator equipment may also be mounted to the fuel cell stack configuration to be integral therewith, such as a fuel (106) and oxidant supply and distribution systems, fuel reformation systems (108), fuel cell support systems (116), combustion, exhaust and spent fuel recirculation systems, and the like. The pre-assembled self-supporting fuel cell stack arrangement allows for easier assembly, installation, maintenance, better structural support and longer life of the fuel cells contained in the fuel cell stack.