SCROLL TONGUE PART AND ROTARY MACHINE INCLUDING THE SAME

• US 20150063994A1
• Filed: 06/02/2014
• Published: 03/05/2015
• Est. Priority Date: 09/04/2013
• Status: Active Grant

• Current Assignee: Hanwha Aerospace Co., Ltd. (Hanwha Corporation)
• Original Assignee: Samsung Techwin Corporation (Hanwha Corporation)
• Inventors: CHO, Jong Jae, SHIN, Bong Gun, LEE, Seung Hoon, LEE, Jin Soo, AHN, Sung Chul
• Granted Patent: US 9,638,211 B2
• Time in Patent Office: Days
• US Class Current: 415/204
• CPC Class Codes: F04D 29/422 Discharge tongues F04D17/04 takes precedence
• CPC Class Codes: F04D 29/444 Bladed diffusers

Abstract

There is provided a casing of a rotary machine which includes a diffuser part; a scroll part into which fluid emitted from the diffuser part flows; and a scroll tongue part including: a tongue portion; a bottom surface extending from a bottom surface of the diffuser part; and a flow opening provided between the tongue portion and the bottom surface, the fluid moving from the diffuser part to the scroll part through the flow opening, wherein the bottom surface of the scroll tongue part is coplanar with the bottom surface of the diffuser part.

Claims

1. A casing of a rotary machine comprising:

a diffuser part;

a scroll part into which fluid emitted from the diffuser part flows; and

a scroll tongue part comprising;

a tongue portion;

a bottom surface extending from a bottom surface of the diffuser part; and

a flow opening provided between the tongue portion and the bottom surface, the fluid moving from the diffuser part to the scroll part through the flow opening,

wherein the bottom surface of the scroll tongue part is coplanar with the bottom surface of the diffuser part.

2. The casing of claim 1, wherein the casing further comprises a plurality of diffuser vanes provided on the bottom surface of the diffuser part.

3. The casing of claim 1, wherein the bottom surface of the scroll tongue part is flush with the bottom surface of the diffuser part.

4. The casing of claim 1, wherein the rotary machine is one of a compressor, a pump, and an air blower.

5. A rotary machine comprising:

an impeller comprising a blade;

a diffuser part configured to increase a pressure of fluid passing through the impeller;

a scroll part configured to compress the fluid emitted from the diffuser part; and

a scroll tongue part provided at the scroll part,

wherein, the scroll tongue part comprises;

a flow opening through which the fluid moves from the diffuser part to the scroll part, and

a bottom surface extending coplanarly with a bottom surface of the diffuser part.

6. The rotary machine of claim 5, wherein a diffuser vane is provided on the bottom surface of the diffuser part.

7. The rotary machine of claim 5, further comprising a collector part connected to the scroll part.

8. The rotary machine of claim 5, wherein the rotary machine is one of a compressor, a pump, and an air blower.

9. The rotary machine of claim 5, wherein the scroll tongue part further comprises a tongue portion, and

wherein the flow opening is a gap disposed between the tongue portion and the bottom surface of the scroll tongue part.

10. A scroll tongue part of a rotary machine comprising:

a tongue portion;

a bottom surface extending from a bottom surface of a diffuser part; and

a flow opening provided between the tongue portion and the bottom surface, fluid moving from the diffuser part to a scroll part through the flow opening,

wherein the bottom surface of the scroll tongue part is flush with the bottom surface of the diffuser.

11. The scroll tongue part of claim 10, wherein a plurality of diffuser vanes are provided on the bottom surface of the diffuser part.

12. The scroll tongue part of claim 10, wherein the rotary machine is one of a compressor, a pump, and an air blower.