Air induction nozzle
First Claim
1. A nozzle, comprising:
- a nozzle housing defining a first flow path having a first inlet at a first end of the nozzle housing and a first outlet at a second end of the nozzle housing, a second flow path having a second inlet at an outer surface of the nozzle housing and a second outlet in a side wall of the nozzle housing defining the first flow path, the second outlet having a Coanda profile and having an annular shape around the first flow path, and a third flow path having a third inlet at the outer side surface of the nozzle housing and a third outlet in the side wall defining the first flow path, the third outlet comprising a plurality of holes arranged circumferentially around the first flow path.
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Accused Products
Abstract
A nozzle includes a nozzle housing defining a first flow path having a first inlet at a first end of the nozzle housing and a first outlet at a second end of the nozzle housing. The nozzle housing also defines a second flow path having a second inlet at an outer surface of the nozzle housing and a second outlet in a side wall of the nozzle housing defining the first flow path, the second outlet defining a Coanda profile and having an annular shape around the first flow path. The nozzle housing defines a third flow path having a third inlet at the outer side surface of the nozzle housing and a third outlet in the side wall defining the first flow path, the third outlet comprising a plurality of holes arranged in an annular pattern around the first flow path.
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Citations
19 Claims
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1. A nozzle, comprising:
a nozzle housing defining a first flow path having a first inlet at a first end of the nozzle housing and a first outlet at a second end of the nozzle housing, a second flow path having a second inlet at an outer surface of the nozzle housing and a second outlet in a side wall of the nozzle housing defining the first flow path, the second outlet having a Coanda profile and having an annular shape around the first flow path, and a third flow path having a third inlet at the outer side surface of the nozzle housing and a third outlet in the side wall defining the first flow path, the third outlet comprising a plurality of holes arranged circumferentially around the first flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A liquid-mist fire suppression system, comprising:
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a sensor configured to detect a fire; a nozzle including a main air flow path having a first inlet and a first outlet, a pressurized air flow path having a second outlet into the main air flow path, the second outlet configured to generate a Coanda effect to draw the air into the first inlet of the main air flow path, and a liquid flow path having a third outlet into the main flow path, the third outlet configured to insert a liquid into the main air flow path to generate a liquid mist out from the first outlet of the main air flow path; a liquid supply configured to provide the liquid to the liquid flow path based on a fire detection signal from the sensor; and a pressurized air supply configured to supply pressurized air to the pressurized air flow path based on the fire detection signal from the sensor. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of generating a liquid mist, comprising:
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providing air to a first inlet of a nozzle, the nozzle including a main flow path including the first inlet and a first outlet, a second flow path including a second outlet into the main flow path and a third flow path including a third outlet into the main flow path; providing pressurized air to the second flow path to generate a Coanda effect in the first flow path to draw the air into the first inlet of the first flow path; and providing a liquid to the third flow path to form a mist of the liquid out from the first outlet of the main flow path; wherein the third outlet is a plurality of holes arranged annularly around the first flow path to form the mist out from the first outlet. - View Dependent Claims (15, 16)
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17. A method of extinguishing a flame, comprising:
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detecting a flame; providing air to a first inlet of a nozzle, the nozzle including a main flow path including the first inlet and a first outlet, a second flow path including a second outlet into the main flow path and a third flow path including a third outlet into the main flow path; providing pressurized air to the second flow path, based on detecting the flame, to generate a Coanda effect in the first flow path to draw the air into the first inlet of the first flow path; and providing a flame-extinguishing liquid to the third flow path, based on detecting the flame, to form a mist of the flame-extinguishing liquid out from the first outlet of the main flow path onto the flame. - View Dependent Claims (18, 19)
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Specification