EJECTOR

摘要

The present disclosure provides an ejector that comprises a housing portion and first and second fluid inlets. The ejector further comprises a fluid outlet and a fluid nozzle that is positioned in the housing and coupled to the first fluid inlet. The fluid nozzle is arranged such that a first fluid that is received by the first inlet at a first pressure PI has a second pressure P2 after passing through the fluid nozzle. The pressure P2 lower that the pressure PI. The ejector also comprises a mixing region that is arranged such that the first fluid when passing through the mixing region draws a second fluid from the second fluid inlet such that the first and second fluids mix. The ejector has an ejector diffuser region that has a cross-sectional area that increases in diameter in a direction towards the fluid outlet and is arranged such that the mixture of the first and second fluid exits the ejector through the fluid outlet with a third pressure. The ejector is arranged such that a position of an outlet of the fluid nozzle relative to the mixing region is adjusted dependent on PI, P2 and/or P3.

主权项

1. An ejector comprising:
a housing portion; a first fluid inlet and a second fluid inlet; a fluid nozzle positioned in the housing portion and coupled to the first fluid inlet, the fluid nozzle being arranged such that a first fluid that has a fluid inlet pressure P1 and is received by the first fluid inlet has a fluid nozzle exit pressure after passing through the fluid nozzle, the fluid nozzle exit pressure being lower than P1; a mixing region arranged such that the first fluid when passing through the mixing region draws a second fluid from the second fluid inlet such that the first and second fluids mix; and a fluid outlet through which a mixture of the first and second fluids exits the ejector; wherein the ejector is arranged such that a position of an outlet of the fluid nozzle relative to the mixing region is adjusted dependent on at least one of P1 and/or and a pressure of the mixed first and second fluids; and wherein the ejector comprises a conduit that is arranged such that a portion of the conduit at or near the fluid nozzle of the ejector has a pressure that is proportional to, or substantially equals, a pressure of the mixed first and second fluids and wherein the ejector is arranged such that the portion of the conduit at or near the fluid nozzle of the ejector is isolated from unmixed first and second fluids.