Abstract: Methods of assembling a rotor assembly of a gas turbine engine having a plurality of components. The method comprises, in one aspect, determining a static unbalance force of each component using the mass and the center of mass location, and determining an optimum assembly arrangement minimizing static unbalance forces. Optimal component stacking positions, among other things, may then be established.

Abstract: Methods of assembling a rotor assembly of a gas turbine engine having a plurality of components. The method comprises, in one aspect, determining a static unbalance force of each component using the mass and the center of mass location, and determining an optimum assembly arrangement minimizing static unbalance forces. Optimal component stacking positions, among other things, may then be established.

Abstract: Methods of assembling a rotor assembly of a gas turbine engine having a plurality of components. The method comprises, in one aspect, determining a static unbalance force of each component using the mass and the center of mass location, and determining an optimum assembly arrangement minimizing static unbalance forces. Optimal component stacking positions, among other things, may then be established.

Abstract: A method of balancing an assembly of rotary parts of a gas turbine engine comprising measuring at least one of the concentricity and parallelism of each component and considering globally all possible component stacking positions to generate an optimized stacking position for each component of the assembly to minimize assembly unbalance.

Abstract: A method and system is provided for broadcasting vehicle safety messages to one or more vehicles. In an embodiment, the system comprises an input device, processor, transmitter, receiver, memory module, display, and user interface. The input device is used for generating a vehicle safety message. The processor is coupled to the input device and is programmed to identify vehicles within a geographic region affected by the safety message. The transmitter is coupled to the processor for broadcasting the safety messages to the identified vehicles. The receiver is located on the vehicles for receiving the broadcasted safety message. The memory module is coupled to the receiver for storing the safety message. The display is operatively coupled to the memory module for indicating the receipt of the safety message to the vehicle driver. The user interface is coupled to the display for selecting the safety message to be communicated to the user.

Abstract: Methods of assembling a rotor assembly of a gas turbine engine having a plurality of components. The method comprises, in one aspect, determining a static unbalance force of each component using the mass and the center of mass location, and determining an optimum assembly arrangement minimizing static unbalance forces. Optimal component stacking positions, among other things, may then be established.

Abstract: Methods and systems for scheduling vehicle service appointments from a remote site via an onboard system are provided. For example, there is provided a method for broadcasting vehicle event information to a plurality of vehicles that can include product update information and vehicle maintenance reminders. The user is able to respond to the vehicle event by requesting a service appointment from a desired dealer using the onboard system to communicate with a remote site using a cellular data line over a wireless communication network. In one embodiment, a proposed service appointment date and time is presented to the user. The proposed appointment date and time is based on the vehicle user's preference setting and a dealer's schedule corresponding to the dealer selected by the user. Proposed service appointment dates and times are released to other users when the user has not confirmed the appointment during a predetermined response time.

Abstract: A method of balancing an assembly of rotary parts of a gas turbine engine comprising measuring at least one of the concentricity and parallelism of each component and considering globally all possible component stacking positions to generate an optimized stacking position for each component of the assembly to minimize assembly imbalance.

Abstract: A system and process is disclosed for retorting oil shale and extracting shale oil and other hydrocarbons therefrom, in which a cased heat delivery well is drilled generally vertically through an overburden and then through a body of oil shale to be retorted to the bottom thereof, generally horizontally under the body of oil shale to be retorted, and then back to the earth surface. Heat energy is transmitted conductively to the body of oil shale to be retorted from a closed loop heat delivery module in the well, the module comprising a fluid transmission pipe containing a heating fluid heated to at least a retorting temperature. Heat energy is also transmitted to the body of oil shale to be retorted above the fluid transmission pipe by vapor conduits that conduct retort vapors upward through the body of oil shale to be retorted; the ascending retort vapors condense and reflux, delivering their latent heat of vaporization to the body of oil shale to be retorted, and the condensed retort liquids descend.

Abstract: A method and system is provided for broadcasting vehicle safety messages to one or more vehicles. In an embodiment, the system comprises an input device, processor, transmitter, receiver, memory module, display, and user interface. The input device is used for generating a vehicle safety message. The processor is coupled to the input device and is programmed to identify vehicles within a geographic region affected by the safety message. The transmitter is coupled to the processor for broadcasting the safety messages to the identified vehicles. The receiver is located on the vehicles for receiving the broadcasted safety message. The memory module is coupled to the receiver for storing the safety message. The display is operatively coupled to the memory module for indicating the receipt of the safety message to the vehicle driver. The user interface is coupled to the display for selecting the safety message to be communicated to the user.

Abstract: An improved cementitious composition is the subject of the present invention. The composition comprises 25-60 weight percent cement component. The cement component is 3 to 50 weight per pozzolan. The pozzolan should have a sulfate reactivity factor of no greater than 12 utilizing a function obtained from the Dunstan formula. The composition is 40 to 75 percent by weight alpha gypsum (calcium sulfate hemihydrate). Various additives may be included to enhance the performance of the composition. These include polymer modifiers, a water reducing agent, a set retarding agent and a set accelerating agent.

Abstract: An oil mist and solid particle laden gas from an oil shale retorting operation is initially treated with a temperature controlled oil spray and then by a coalescer to reduce the quantity of oil mist and remove most of the solid particle content of the gas stream and then finally treated by an electrostatic precipitator to essentially remove the oil mist remaining in the gas.

Abstract: A vertical vessel, having a low bed of broken material, having included combustible material, is initially ignited by a plurality of ignitors spaced over the surface of the bed, by adding fresh, broken material onto the bed to buildup the bed to its operating depth and then passing a combustible mixture of gas upwardly through the material, at a rate to prevent back-firing of the gas, while air and recycled gas is passed through the bed to thereby heat the material and commence the desired laterally uniform combustion in the bed. The procedure permits precise control of the air and gaseous fuel mixtures and material rates, and permits the use of the process equipment designed for continuous operation of the vessel.

Abstract: A gas, formed as a product of a pyrolysis of oil shale, is passed through hot, retorted shale (containing at least partially decomposed calcium or magnesium carbonate) to essentially eliminate sulfur contaminants in the gas. Specifically, a single chambered pyrolysis vessel, having a pyrolysis zone and a retorted shale gas into the bottom of the retorted shale zone and cleaned product gas is withdrawn as hot product gas near the top of such zone.