Author: claimsbot

What is claimed is:

1. A turbine blade for a gas turbine engine comprising a superalloy substrate defining an airfoil, a root, and a platform located between the blade and root, the platform has an underside adjacent the root, and a corrosion resistant noble metal-containing aluminide coating on the underside of the platform and blade neck.
2. The turbine blade of claim 1, wherein the aluminide coating is a platinum aluminide coating.
3. The turbine blade of claim 1, wherein the coating contains about 11-60 wt. % platinum, balance primarily aluminum and nickel.
4. The turbine blade of claim 1, wherein the coating contains about 25-55 wt. % platinum, balance primarily aluminum and nickel.
5. The turbine blade of claim 1, wherein the coating contains about 30-45 wt. % platinum, balance primarily aluminum and nickel.
6. The turbine blade of claim 1, wherein the coating has a nominal thickness of less than about 0.005.
7. The turbine blade of claim 1, further comprising a platinum aluminide layer applied over an existing aluminide coating.
8. The turbine blade of claim 1 wherein the substrate is composed of a directionally solidified nickel-based alloy.
9. The turbine blade of claim 1 wherein the substrate is comprised of a columnar grain nickel-based alloy.
10. The turbine blade of claim 1 wherein the substrate is comprised of a single crystal nickel-based alloy.
11. A superalloy gas turbine component which operates in an environment with primary gas path temperatures in excess of 1000 C., the component having a first, exposed portion which is directly exposed to hot gas path, a second, shielded section which is shielded from direct exposure to the hot gas path, and a third section between the exposed and shielded portions, the improvement which comprises a corrosion resistant platinum aluminide coating applied to the third section.
12. The component of claim 11 comprising a turbine blade, the first portion forming an airfoil, the section portion forming a root, and the third section forming a platform, the improvement comprising a corrosion resistant platinum aluminide coating applied to the underside of the platform.
13. The component of claim 11, wherein the components is composed of a directionally solidified superalloy material.
14. The component of claim 11, wherein the coating has a nominal thickness of less than about 0.005.
15. The component of claim 11, wherein the coating further comprises varying levels of hafnium, silicon andor yttrium.
16. The turbine blade of claim 1, wherein at least a portion of the component has an applied coating having a composition different from that applied to the airfoil surface.
17. The turbine blade of claim 1, wherein at least a portion of the airfoil is coated by a diffusion aluminide and the underplatform surface is coated with a noble metal-containing aluminide.
18. The turbine blade of claim 1, wherein the coating further comprises yttrium, hafnium andor silicon.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An apparatus having data flow graph (DFG) processor, which processes a DFG necessary for configuration of a reconfigurable circuit capable of changing functions, comprising:
a central processing unit;
a dividing unit which divides a program describing target operations into two or more subprograms;
a DFG generating unit which generates, using the central processing unit, a plurality of DFGs corresponding to the two or more subprograms in accordance with a description in the program, the DFGs representing dependency in execution between the target operations of the program carried out in sequence, wherein the generating unit generates, when a branching process is detected in the program, a first DFG of the plurality of DFGs indicating a process before the branching process, and a second DFG of the plurality of DFGs indicating a process after the branching process, and at least either one of the first DFG or the second DFG includes a process for determining a destination of the branching process;
a flow data generating unit which generates flow data indicating the order of execution of the DFGs based on the generation by the DFG generating unit; and
a configuration data generating unit which converts the DFGs into corresponding configuration data for mapping the DFGs into the reconfigurable circuit and defining the functions in the reconfigurable circuit.

1. An ignition control system for an internal combustion engine comprising:
throttle opening detection means for detecting a throttle opening of a throttle valve disposed in an intake passage of the internal combustion engine;
crank angle detection means for detecting a crank angle signal associated with the rotation of a crankshaft of the internal combustion engine;
stroke determination means for determining a stroke based on the crank angle signal detected by the crank angle detection means; and
ignition timing correction means for correcting ignition timing in a retardation direction by a predetermined retardation angle when the throttle valve is rapidly opened to a predetermined throttle opening and then rapidly closed within a predetermined time period including one combustion cycle of the internal combustion engine, the combustion cycle being defined by the stroke determination means, and the predetermined retardation angle being based on at least the throttle opening.
2. The ignition control system for an internal combustion engine according to claim 1, wherein
the ignition timing correction means determines the predetermined retardation angle when the sequence of the operations of the throttle valve is completed within 100 ms.
3. The ignition control system for an internal combustion engine according to claim 1, wherein
the ignition timing correction means determines the predetermined retardation angle when the sequence of the operations of the throttle valve is performed at an engine rotational speed, which is evaluated based on the crank angle signal, of about an idling rotational speed.
4. The ignition control system for an internal combustion engine according to claim 1, wherein
the ignition timing correction means determines the predetermined retardation angle when at least a part of a latter period of the sequence of the operations of the throttle valve overlaps with an intake stroke of one combustion cycle of the internal combustion engine, the latter period being a period after the throttle valve starts closing.
5. The ignition control system for an internal combustion engine according to claim 1, wherein
the predetermined retardation angle is determined in accordance with a throttle opening change during a latter period of the sequence of the operations of the throttle valve, the latter period being a period after the throttle valve starts closing.
6. The ignition control system for an internal combustion engine according to claim 1, wherein
the ignition timing correction means is prohibited from determining the predetermined retardation angle when a throttle opening change during a latter period of the sequence of the operations of the throttle valve is equal to or less than a predetermined value, the latter period being a period after the throttle valve starts closing.
7. The ignition control system for an internal combustion engine according to claim 1, wherein
the internal combustion engine is a four-cycle single-cylinder engine or an independent intake type, four-cycle multi-cylinder engine.
8. An ignition control system for an internal combustion engine comprising:
a throttle opening detector for detecting a throttle opening of a throttle valve disposed in an intake passage of the internal combustion engine;
a crank angle detector for detecting a crank angle signal associated with the rotation of a crankshaft of the internal combustion engine;
a stroke determiner for determining a stroke based on the crank angle signal detected by the crank angle detector; and
an ignition timing corrector for correcting ignition timing in a retardation direction by a predetermined retardation angle when the throttle valve is rapidly opened to a predetermined throttle opening and then rapidly closed within a predetermined time period including one combustion cycle of the internal combustion engine, the combustion cycle being defined by the stroke determiner, and the predetermined retardation angle being based on at least the throttle opening.
9. The ignition control system for an internal combustion engine according to claim 8, wherein
the ignition timing corrector determines the predetermined retardation angle when the sequence of the operations of the throttle valve is completed within 100 ms.
10. The ignition control system for an internal combustion engine according to claim 8, wherein
the ignition timing corrector determines the predetermined retardation angle when the sequence of the operations of the throttle valve is performed at an engine rotational speed, which is evaluated based on the crank angle signal, of about an idling rotational speed.
11. The ignition control system for an internal combustion engine according to claim 8, wherein
the ignition timing corrector determines the predetermined retardation angle when at least a part of a latter period of the sequence of the operations of the throttle valve overlaps with an intake stroke of one combustion cycle of the internal combustion engine, the latter period being a period after the throttle valve starts closing.
12. The ignition control system for an internal combustion engine according to claim 8, wherein
the predetermined retardation angle is determined in accordance with a throttle opening change during a latter period of the sequence of the operations of the throttle valve, the latter period being a period after the throttle valve starts closing.
13. The ignition control system for an internal combustion engine according to claim 8, wherein
the ignition timing corrector is prohibited from determining the predetermined retardation angle when a throttle opening change during a latter period of the sequence of the operations of the throttle valve is equal to or less than a predetermined value, the latter period being a period after the throttle valve starts closing.
14. The ignition control system for an internal combustion engine according to claim 8, wherein
the internal combustion engine is a four-cycle single-cylinder engine or an independent intake type, four-cycle multi-cylinder engine.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A transducer comprising:
an acoustic energy generating means for generating acoustic energy and for delivering an approximately uniform amount of acoustic energy in a given time period to each unit of surface area on a particular surface of a substrate to be exposed to the acoustic energy when a relative rotational motion about an axis of rotation exists between the substrate and the acoustic energy generating means, the acoustic energy generating means including two or more segments that correct for the increase in linear velocity of points on the particular surface with increasing distance from the axis of rotation, the acoustic energy generating means overlying less than 100% of the particular surface, and each of the two or more segments being separately controllable with respect to an amount of power that is supplied to each segment andor with respect to a period of time that power is supplied to each segment; and
a resonator attached to the acoustic energy generating means for transmitting the acoustic energy to the substrate.
2. The transducer of claim 1 wherein the two or more segments each comprise a rectangular or square-shaped piezoelectric crystal segment of equal area, with each piezoelectric crystal segment being driven at a different power.
3. The transducer of claim 1 wherein the two or more segments each comprise a rectangular or square-shaped piezoelectric crystal segment of equal area, with each piezoelectric crystal segment being driven at a different power for a different length of time.
4. The transducer of claim 1 wherein the two or more segments each comprise a rectangular or square-shaped piezoelectric crystal segment, with each piezoelectric crystal segment having a different area and being driven at a different power for a different length of time.
5. The transducer of claim 1 wherein the acoustic energy generating means comprises a continuous rectangular-shaped piezoelectric crystal and each of the two or more segments comprise a separate electrode attached to the piezoelectric crystal.
6. The transducer of claim 1 wherein the acoustic energy generating means comprises a wedge-shaped member and each of the two or more segments comprise a piezoelectric crystal segment, with each piezoelectric crystal segment being driven at a different power, and the two or more piezoelectric crystal segments forming the wedge-shaped member when assembled together.
7. The transducer of claim 1 wherein the acoustic energy generating means comprises a wedge-shaped member and each of the two or more segments comprise a piezoelectric crystal segment, with each piezoelectric crystal segment being driven at the same power for a different length of time, and the two or more piezoelectric crystal segments forming the wedge-shaped member when assembled together.
8. The transducer of claim 1 wherein the acoustic energy generating means comprises a continuous wedge-shaped piezoelectric crystal and each of the two or more segments comprise a separate electrode attached to the piezoelectric crystal.
9. The transducer of claim 1 wherein the acoustic energy generating means comprises a triangular-shaped member and each of the two or more segments comprise a piezoelectric crystal segment, with each piezoelectric crystal segment being driven at a different power, and the two or more piezoelectric crystal segments forming the triangular-shaped member when assembled together.
10. The transducer of claim 1 wherein the acoustic energy generating means comprises a triangular-shaped member and each of the two or more segments comprise a piezoelectric crystal segment, with each piezoelectric crystal segment being driven at the same power for a different length of time, and the two or more piezoelectric crystal segments forming the triangular-shaped member when assembled together.
11. The transducer of claim 1 wherein the acoustic energy generating means comprises a continuous triangular-shaped piezoelectric crystal and each of the two or more segments comprise a separate electrode attached to the piezoelectric crystal.