IP Library › Granted Patent US 11,480,295
Granted Patent B2
US 11,480,295 · App. 15/009,280 · Granted Oct 25, 2022

Nozzle-type steam trap

Inventor: Tsutomu Katsura (Tokyo, JP)
Assignee: ECO FIRST CO., LTD.
F16T1/12B01D35/02F16T1/34
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Quick Facts
Patent No.
US 11,480,295
App. No.
15/009,280
Granted
Oct 25, 2022
Kind
B2
Abstract

This Venturi nozzle steam trap comprises a body, a strainer, a drain reservoir, and a Venturi nozzle, characterized in that the drain reservoir includes a drain vent of the Venturi nozzle and a non-drain vent, and is disposed in an upper section of a vapor transport piping structure provided with the steam trap, the drain vent is placed in a position lower than the non-drain vent, and a height difference between the drain vent and the non-drain vent is continuously varied by using a rotatable components on the same axis as that of the vapor transport piping structure.

Claims (14)

1. A Venturi nozzle steam trap comprising:

a body connected to an outlet of steam and/or condensate and an inlet of steam and/or condensate;

a strainer disposed in the body;

a drain reservoir annexed to the body; and

a Venturi nozzle installed in the steam trap,

wherein

the drain reservoir is disposed in an upper section of the steam trap and is arranged at a top of the body,

the drain reservoir includes a drain vent of the Venturi nozzle through which condensate is discharged into the drain reservoir disposed in the steam trap and a non-drain vent through which condensate is discharged from the drain reservoir to an outer side of the steam trap through the outlet of steam and/or condensate,

the drain vent is placed in a position lower than the non-drain vent,

the body is connected to a vapor transport piping structure by using a rotatable and connectable union or flange on a same axis as that of the vapor transport piping structure,

a distance between the axis and the drain vent is arranged to be shorter than that between the axis and the non-drain vent, and

a difference between the vertical height, relative to the axis, of the drain vent and that of the non-drain vent is varied by rotating the body on the axis with the union or flange to adjust a discharged amount of condensate.

2. The Venturi nozzle steam trap according to claim 1 , further comprising a strainer filter composed of 2-300 mesh screen.

3. The Venturi nozzle steam trap according to claim 2 , wherein the strainer filter is composed of 100 to 300 mesh screen reinforced with a support body.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2016
From: KATSURA, TSUTOMU
To: ECO FIRST CO., LTD.
Reel/Frame 037619/0161 →
Priority Claims (2)
JP JP2013-161493 · Aug 2, 2013 · national
JP JP2014-112882 · May 30, 2014 · national
Continuity (2)
Continuation In Part PCTJP2014070163 · Jul 31, 2014
Related Publication 20160146399A1 · May 26, 2016
Cited By (1)
US 12,239,927