US 9,285,146 B2 · Ejector

Abstract

An ejector (200; 300; 320; 340; 400; 430; 460; 480) has a primary inlet (40), a secondary inlet (42), and an outlet (44). A primary flowpath extends from the primary inlet (40) to the outlet (44) and a secondary flowpath extends from the secondary inlet (42) to the outlet (44), merging with the primary flowpath. A motive nozzle (100) surrounds the primary flowpath upstream of a junction with the secondary flowpath. The motive nozzle (100) has a throat (106) and an exit (110). The ejector (200; 300; 320; 340; 400; 430; 460; 480) further has a means (204, 210; 304; 322; 342; 402; 432; 462; 482) for varying an effective area of the exit (110) or simultaneously varying the effective area of the exit (110) and an effective area of the throat (106).

Claims22

Dependent claims

A refrigerant ejector for a refrigerant system comprising:

a primary inlet;
a secondary inlet;
an outlet;
a primary flowpath from the primary inlet to the outlet;
a secondary flowpath from the secondary inlet to the outlet;
a motive nozzle surrounding the primary flowpath upstream of a junction with the secondary flowpath and having:
a throat;
and an exit;
and
means for varying an effective area of the exit and an effective area of the throat oppositely to each other.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/993,207Filed 4 Jan 2011

Published

US 2013/0277448 A124 Oct 2013

Granted

15 Mar 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

F25B 41/00
Fluid-circulation arrangements
F04F 5/461
Arrangements of nozzles: adjustable nozzles
F25B 49/02
Arrangement or mounting of control or safety devices: for compression type machines, plants or systems
F25B 2341/0012
Ejectors not being used as compression device: ejectors with the cooled primary flow at high pressure

Ejector

Life of this patent

Ejector

Life of this patent

Abstract

Claims22