Controllable pitot device and method
AssigneeEttem Engineering S.A. Ltd.
InventorRammy A. Shellef
Life of this patent
Estimating the term…
Abstract
A controllable Pitot device uses a Pitot nozzle supported by a Pitot nozzle holder for pumping fluid flowing in a first direction or in a second direction flowing opposite the first direction. The Pitot nozzle has one ingestion inlet pivotable to ingest fluid from either direction. Ingested fluid impinges on an obstacle interior to the Pitot nozzle which is disposed opposite the ingestion inlet to create a zone of fluid at stagnation pressure. Stagnation pressure pumps fluid via the interior of the Pitot nozzle through one of two openings for discharging pumped fluid out of a discharge outlet supported by the nozzle holder, to the exterior of the Pitot device. The nozzle holder can be a support structure or an embedded support operative with a rotating fluid machine.
Claims16
A controllable Pitot device comprising:
- a Pitot nozzle configured to pump fluid out of a flow of fluid, the Pitot nozzle comprising a fluid ingestion inlet and two diametrically opposed open fluid exit openings;
- and
- a nozzle holder comprising an unobstructed fluid discharge outlet, the nozzle holder being configured to support the Pitot nozzle such that the Pitot nozzle is pivotably adjustable to an angular disposition from among a plurality of angular dispositions including a first angular disposition to pump fluid flowing in a first direction of flow, and a second angular disposition to pump fluid flowing in a second direction of flow that is opposite to the first direction of flow,
- wherein:
- the unobstructed fluid discharge outlet is oriented in an angular disposition which is independent of the angular disposition of the fluid ingestion inlet,
- the Pitot nozzle is further configured to pump in accordance with the angular disposition of the unobstructed fluid discharge outlet, and
- the Pitot nozzle is pivotable such that the angular disposition thereof is an angular disposition in which (i) one of the open fluid exit openings is an uncovered fluid exit opening for free passage of fluid therethrough, (ii) the other one of the open fluid exit openings is a covered fluid exit opening for preventing passage of fluid therethrough, and (iii) fluid communication is provided from the fluid ingestion inlet to the unobstructed fluid discharge outlet via the uncovered fluid exit opening.
A controllable Pitot device comprising:
- a Pitot nozzle comprising a fluid ingestion inlet;
- and
- a nozzle holder configured to support the Pitot nozzle to be pivotably adjustable to an angular disposition from among a plurality of adjustable angular dispositions including a first angular disposition and a second angular disposition, and to immerse the fluid ingestion inlet of the Pitot nozzle in a flow of fluid flowing within a duct,
- wherein:
- the Pitot nozzle is configured to pump fluid from one of (i) a flow of fluid flowing in a first direction of flow, by adjustment of the angular position of the Pitot nozzle to the first angular disposition, and (ii) a flow of fluid flowing in a second direction of flow which is opposite the first direction of flow, by adjustment of the angular position of the Pitot nozzle to the second angular disposition which is diametrically opposite from the first angular disposition, and
- the nozzle holder is configured as one of a support structure coupled to the duct, and an embedded support embedded in a duct wall of the duct.
A controllable Pitot device comprising:
- a Pitot nozzle comprising a fluid ingestion inlet;
- and
- a nozzle holder configured to support the Pitot nozzle to be pivotably adjustable to a plurality of adjustable angular dispositions and to immerse the fluid ingestion inlet of the Pitot nozzle in a flow of fluid flowing within a duct,
- wherein:
- the Pitot nozzle is configured to pump fluid from one of (i) a flow of fluid flowing in a first direction of flow, by adjustment of the Pitot nozzle to a first angular disposition, and (ii) a flow of fluid flowing in a second direction of flow which is opposite the first direction of flow, by adjustment of the Pitot nozzle to a second angular disposition which is diametrically opposite from the first angular disposition, and
- the plurality of angular dispositions to which the Pitot nozzle is pivotably adjustable include a disposition for pumping fluid, and a disposition preventing pumping of fluid.
Dependencies are inferred from the claim text.