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US 7,866,345 B2Granted
Non-clogging flow restriction for pressure based flow control devices
AssigneeCircor Instrumentation Technologies, Inc.
InventorPatrick A. Lowery
Life of this patent
Estimating the term…
Abstract
A flow metering device includes at least two stackable modular bodies including at least one set of adjacent modular bodies, each modular body having an orifice for modulating fluid flow therethrough. The modular bodies arranged such that the orifices between adjacent modular bodies are offset from each other. Adjacent stacked modular bodies define a chamber for trapping particulates entrained in fluid flow without obstructing fluid flow through the orifices.
Claims21
A flow metering device comprising:
- at least two stackable modular bodies including at least one set of adjacent modular bodies, each modular body having an orifice for modulating fluid flow therethrough, the at least two modular bodies arranged such that the orifices between adjacent modular bodies are offset from each other;
- and
- wherein adjacent stacked modular bodies define a chamber having features for trapping particulates entrained in fluid flow without obstructing fluid flow through the orifices.
A flow metering device comprising:
- at least two stackable modular bodies including at least one set of adjacent modular bodies, each modular body having an orifice having substantially the same flow coefficient for modulating fluid flow therethrough, the at least two modular bodies arranged such that the orifices between adjacent modular bodies are offset from each other;
- and
- wherein adjacent stacked modular bodies define a chamber for trapping particulates entrained in fluid flow without obstructing fluid flow through the orifices.
A flow metering device comprising:
- a modular assembly disposed in a seated position in a bore by a resilient device, the modular assembly comprising:
- at least two stackable modular bodies including at least one set of adjacent modular bodies, each modular body having an orifice for modulating fluid flow therethrough, the at least two modular bodies arranged such that the orifices between adjacent modular bodies are offset from each other;
- and
- wherein adjacent stacked modular bodies define a chamber having features for trapping particulates entrained in fluid flow without obstructing fluid flow through the orifices;
- and
- a fluid parameter measuring device disposed in fluid communication with the modular assembly;
- and
- wherein in response to a transient overpressure condition, the modular assembly is temporarily urged away from the seated position to relieve the transient overpressure condition to prevent damage to the measuring device.
5 more elements
Dependencies are inferred from the claim text.