Wireless power-receiving assembly for a telemetry system in a high-temperature environment of a combustion turbine engine

• US 9,420,356 B2
• Filed: 08/27/2013
• Issued: 08/16/2016
• Est. Priority Date: 08/27/2013
• Status: Active Grant

• Current Assignee: Siemens Energy Incorporated (Siemens AG)
• Original Assignee: Siemens Energy Incorporated (Siemens AG)
• Inventors: Bevly, Alex J. III, McConkey, Joshua S.
• Primary Examiner(s): Lee, Benjamin C
• Assistant Examiner(s): Daramola, Israel
• Application Number:
  US14/010,572
• Publication Number:
  US 20150061893A1
• Time in Patent Office: 1,085 Days
• Field of Search: 340/870.31, 340/935, 336/83, 336/200
• US Class Current: 1/1
• CPC Class Codes: F01D 17/02 Arrangement of sensing elements
• CPC Class Codes: F01D 17/20 Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted sensing elements alone F01D17/02; final actuators alone F01D17/10
• CPC Class Codes: F01D 21/003 Arrangements for testing or measuring for measuring vibrations G01H
• CPC Class Codes: H04Q 2209/40 using a wireless architecture
• CPC Class Codes: H04Q 9/14 Calling by using pulses
• CPC Class Codes: Y02T 50/60 Efficient propulsion technologies, e.g. for aircraft

Abstract

In a telemetry system (100) in a high-temperature environment of a combustion turbine engine (10), a wireless power-receiving coil assembly (116) may be affixed to a movable component (104) of the turbine engine. Power-receiving coil assembly (116) may include a radio-frequency transparent housing (130) having an opening (132). A lid (134) may be provided to close the opening of the housing. Lid (134) may be positioned to provide support against a surface (120) of the movable component. An induction coil (133) is disposed in the housing distally away from the lid and encased between a first layer (136) and a last layer (140) of a potting adhesive. Lid (134) is arranged to provide vibrational buffering between the surface (120) of the movable component (104) and the layers encasing the induction coil.

Claims

1. In a telemetry system in a high-temperature environment of a combustion turbine engine, a wireless power-receiving coil assembly affixed to a movable component of the turbine engine comprising:

a radio-frequency transparent housing having an opening;

a lid to close the opening of the housing, the lid positioned to provide support against a surface of the movable component; and

an induction coil assembly comprising a wireless power-receiving induction coil in a substrate, the induction coil assembly disposed in the housing distally away from the lid and encased between a first layer and a last layer of a potting adhesive without the induction coil assembly contacting the lid, wherein the lid is arranged to provide vibrational buffering between the surface of the movable component and the layers encasing the induction coil assembly;

wherein the induction coil comprises at least one planar winding embedded in a ceramic substrate;

wherein the at least one planar winding is connected to electrically power one or more circuitry of the telemetry system located on the moveable component by way of at least one or more electrical leads arranged to form a loop free of sharp bends between at least one electrically conductive structure formed on the ceramic substrate and an electrical connector extending through the housing for electrical connection to the one or more telemetry system circuitry, wherein said at least one electrically conductive structure on the ceramic substrate is electrically connected to the induction coil.

2. The power-receiving assembly of claim 1, wherein the housing is composed of a ceramic material, and the lid is composed of a ceramic matrix composite material.

3. The power-receiving assembly of claim 2, wherein a coefficient of a thermal expansion of the potting adhesive has a value between respective values of a coefficient of thermal expansion of the ceramic material and a coefficient of thermal expansion of a ceramic substrate where at least one planar winding of the induction coil is embedded.

4. The power-receiving assembly of claim 1, wherein the potting adhesive comprises a ceramic cement.

5. The power-receiving assembly of claim 1, wherein the loop formed by the one or more electrical leads is encased by at least one of the layers of the potting adhesive.

6. The power-receiving assembly of claim 1, wherein the ceramic substrate is selected from the group consisting of a high temperature co-fired ceramic, and a low temperature co-fired ceramic.

7. A telemetry system for use in a combustion turbine engine, the telemetry system comprising:

a sensor on a turbine blade;

a telemetry transmitter circuit connected to receive a signal from the sensor indicative of a condition of the turbine blade;

an induction power system to power one or more circuitry of the telemetry system located on the turbine blade, the induction power system comprising;

at least one power-transmitting coil assembly affixed to a stationary component proximate to the turbine blade; and

a wireless power-receiving coil assembly affixed to an end face of a root of the turbine blade, the power-receiving coil assembly comprising;

a radio-frequency transparent housing having an opening;

a lid to close the opening of the housing, the lid positioned to provide support against the end face of the root of the turbine blade; and

an induction coil assembly comprising a power-receiving induction coil in a substrate, the induction coil assembly disposed in the housing distally away from the lid and encased between a first layer and a last layer of a potting adhesive without the induction coil assembly contacting the lid, wherein the lid is arranged to provide vibrational buffering between the end face of the root of the turbine blade and the layers encasing the induction coil;

a rotatable antenna affixed to the end face of the root of the turbine blade, wherein the telemetry transmitter circuit is connected to the rotatable antenna to transmit the signal indicative of the condition of the turbine blade; and

a stationary antenna affixed to the stationary component to receive the signal indicative of the condition of the turbine blade;

wherein the induction coil comprises at least one planar winding embedded in a ceramic substrate;

wherein at least one planar winding is connected to electrically power one or more circuitry of the telemetry system located on the turbine blade by way of at least one or more electrical leads arranged to form a loop free of sharp bends between at least one electrically conductive structure formed on a ceramic substrate and an electrical connector extending through the housing for electrical connection to the one or more telemetry system circuitry, wherein said at least one electrically conductive structure formed on the ceramic substrate is electrically connected to the induction coil.

8. The telemetry system of claim 7, wherein the housing is composed of a ceramic material, and the lid is composed of a ceramic matrix composite material.

9. The telemetry system of claim 8, wherein a coefficient of a thermal expansion of the potting adhesive has a value between respective values of a coefficient of thermal expansion of the ceramic material and a coefficient of thermal expansion of a ceramic substrate where at least one planar winding of the secondary induction coil is embedded.

10. The telemetry system of claim 7, wherein the potting adhesive comprises a ceramic cement.

11. The power-receiving assembly of claim 7, wherein the loop formed by the one or more electrical leads is encased by at least one of the layers of the potting adhesive.

12. The power-receiving assembly of claim 7, wherein the ceramic substrate is selected from the group consisting of a high temperature co-fired ceramic, and a low temperature co-fired ceramic.

13. In a telemetry system in a high-temperature environment of a combustion turbine engine, a wireless power-receiving assembly affixed to a movable component of the turbine engine comprising:

a radio-frequency transparent housing having an opening;

a lid to close the opening of the housing, the lid positioned to provide support against a surface of the movable component, wherein the housing is composed of a ceramic material, and the lid is composed of a ceramic matrix composite material; and

an induction coil assembly comprising a power-receiving induction coil in a substrate, the induction coil assembly disposed in the housing distally away from the lid and encased between a first layer and a last layer of a potting adhesive without the induction coil assembly contacting the lid, wherein the potting adhesive comprises a ceramic cement, and further wherein the lid is arranged to provide vibrational buffering between the surface of the movable component and the layers encasing the induction coil, wherein the induction coil comprises at least one planar winding embedded in a ceramic substrate;

wherein the at least one planar winding is connected to electrically power one or more circuitry of the telemetry system located on the turbine blade by way of at least one or more electrical leads arranged to form a loop free of sharp beads between at least one electrically conductive structure formed on the ceramic substrate and an electrical connector extending through the housing for the electrical connection to the one or more telemetry system circuitry, wherein said at least one electrically conductive structure formed on the ceramic substrate is electrically connected to the induction coil, wherein the loop formed by the one or more electrical leads is encased by at least one of the layers of the potting adhesive.

14. The power-receiving assembly of claim 13, wherein the ceramic substrate is selected from the group consisting of a high temperature co-fired ceramic, and a low temperature co-fired ceramic.

15. The power-receiving assembly of claim 13, wherein a coefficient of a thermal expansion of the potting adhesive has a value between respective values of a coefficient of thermal expansion of the ceramic material and a coefficient of thermal expansion of a ceramic substrate where at least one planar winding of the induction coil is embedded.