Supply tube for sensor
A sensor supply tube assembly is provided for disposition within a compressor outlet through which a main flowpath is defined and a sensor port transversely coupled to the compressor outlet. The sensor supply tube assembly includes first and second tubes. The first tube is formed to direct main flowpath fluid from the compressor outlet and through a portion of the sensor port and includes first and second ends disposed within the sensor port and the compressor outlet, respectively, and a curved section interposed between the first and second ends. The second tube includes a sleeve tightly fittable between the first end and the sensor port and a base. The base has an exterior surface from which the sleeve extends and which is disposed and configured to non-rotatably abut with an interior surface of the compressor outlet.
1. A sensor supply tube assembly disposed within a compressor outlet through which a main flowpath is defined and a sensor port,
the compressor outlet being configured such that a predominant direction of flow through the main flow path is substantially straight immediately upstream of and immediately downstream from the sensor port, and
the sensor port is integrally and transversely coupled to the compressor outlet to form an acute angle,
the sensor supply tube assembly comprising:
a first tube formed to direct main flowpath fluid from the compressor outlet and through a portion of the sensor port and comprising first and second ends disposed within the sensor port and the compressor outlet, respectively, and a curved section interposed between the first and second ends; and
a second tube comprising a sleeve tightly fittable between the first end and the sensor port and a base having an exterior surface from which the sleeve extends at a same angle as the acute angle formed between the sensor port and the compressor outlet, the exterior surface being disposed and configured to non-rotatably abut with an interior surface of the compressor outlet,
wherein the first tube has an acute J-shaped profile which corresponds to the acute angle such that:
the second end extends in parallel with the predominant direction of flow of the main flowpath fluid along the main flowpath toward an inlet of the curved section, and
the first end extends from an outlet of the curved section in a direction having radially outward and aft components respectively defined relative to a longitudinal axis of the compressor outlet and the predominant direction of flow of the main flowpath fluid.
2. The sensor supply tube assembly according to claim 1 , further comprising a sensor fitting disposed at a distal portion of the first end.
3. The sensor supply tube assembly according to claim 1 , wherein a distal portion of the sleeve extends beyond the first end.
4. The sensor supply tube assembly according to claim 1 , wherein an exterior surface of the first end is bonded to an interior surface of the sleeve.
5. The sensor supply tube assembly according to claim 1 , wherein the curved section terminates at the base.
6. The sensor supply tube assembly according to claim 1 , wherein the exterior surface of the base and the interior surface of the compressor outlet have respectively complementary curvatures which are symmetric relative to opposite sides of the first tube.
7. A cabin air compressor (CAC), comprising:
a compressor outlet through which a main flowpath is defined;
a sensor port integrally and transversely coupled to the compressor outlet to form an acute angle with the compressor outlet,
wherein the compressor outlet is configured such that a predominant direction of flow through the main flow path is substantially straight immediately upstream of and immediately downstream from the sensor port;
a sensor coupled to the sensor port;
a first tube formed to direct main flowpath fluid from the compressor outlet and through a portion of the sensor port to the sensor and comprising first and second ends disposed within the sensor port and the compressor outlet, respectively, and a curved section interposed between the first and second ends; and
a second tube comprising a sleeve tightly fittable between the first end and the sensor port and a base having an exterior surface from which the sleeve extends at a same angle as the acute angle formed between the sensor port and the compressor outlet, the exterior surface being disposed and configured to non-rotatably abut with an interior surface of the compressor outlet,
wherein the first tube has an acute J-shaped profile which corresponds to the acute angle such that:
the second end extends in parallel with the predominant direction of flow of the main flowpath fluid along the main flowpath toward an inlet of the curved section, and
the first end extends from an outlet of the curved section in a direction having radially outward and aft components respectively defined relative to a longitudinal axis of the compressor outlet and the predominant direction of flow of the main flowpath fluid.
8. The CAC according to claim 7 , wherein the sensor comprises a pressure sensor.
9. The CAC according to claim 7 , further comprising a sensor fitting interposed between a distal portion of the first end and an inlet of the sensor, wherein a distal portion of the sleeve extends beyond the first end to be threadably engageable with the inlet of the sensor.
10. The CAC according to claim 7 , wherein an exterior surface of the first end is bonded to an interior surface of the sleeve.
11. The CAC according to claim 7 , wherein the curved section terminates at the base.
12. The CAC according to claim 7 , wherein the exterior surface of the base and the interior surface of the compressor outlet have respectively complementary curvatures which are symmetric relative to opposite sides of the first tube.
13. A cabin air compressor (CAC), comprising:
a compressor outlet through which a main flowpath is defined;
a sensor port integrally and transversely coupled to the compressor outlet to form an acute angle with the compressor outlet,
wherein the compressor outlet is configured such that a predominant direction of flow through the main flow path is substantially straight immediately upstream of and immediately downstream from the sensor port;
a pressure sensor coupled to the sensor port; and
a sensor supply tube assembly non-rotatably disposable in the compressor outlet and the sensor port to direct main flowpath fluid from the compressor outlet and through a portion of the sensor port to the pressure sensor along first and second acutely transverse flowpaths that form an angle that is a same angle as the acute angle and along a curved flowpath interposed between the first and second flowpaths,
the first flowpath extending in parallel with the predominant direction of flow of the main flowpath fluid flow along the main flowpath toward an inlet of the curved flowpath, and
the second flowpath extending from an outlet of the curved flowpath in a direction having radially outward and aft components respectively defined relative to a longitudinal axis of the compressor outlet and the predominant direction of flow of the main flowpath fluid.
14. The CAC according to claim 13 , further comprising a sensor fitting interposed between the sensor supply tube assembly and the pressure sensor.
15. The CAC according to claim 13 , wherein the first, second and curved flowpaths cooperatively form a J-shape.
16. The CAC according to claim 13 , wherein the sensor supply tube assembly comprises:
a first tube formed to define the first, second and curved flowpaths; and
a second tube comprising:
a sleeve tightly fittable between a first end portion of the first tube and the sensor port; and
a base having an exterior surface from which the sleeve extends and which is disposed and configured to non-rotatably abut with an interior surface of the compressor outlet,
the exterior surface of the first end portion of the first tube being bonded to an interior surface of the sleeve.
17. The CAC according to claim 16 , wherein the curved flowpath terminates at the base.
18. The CAC according to claim 16 , wherein the exterior surface of the base and the interior surface of the compressor outlet have respectively complementary curvatures which are symmetric relative to opposite sides of the first tube.