Impeller with sealing portion
First Claim
Patent Images
1. An impeller rotating about a rotary shaft, the impeller comprising:
- an inlet through which a fluid is introduced;
an outlet through which the fluid is discharged;
a supporter connected to the rotary shaft;
a blade portion provided on the supporter;
a shroud disposed to cover the blade portion; and
a seal including at least one sealing protrusion protruding in an axial direction of the rotary shaft, the seal being coupled to the shroud at an outermost end of the shroud along the axial direction thereby forming a junction between the shroud and the seal,wherein a width of the seal, in a radial direction of the shaft, being measured above the junction between the seal and the shroud is greater than a width of the shroud, in the radial direction of the shaft, being measured at the junction.
4 Assignments
0 Petitions
Accused Products
Abstract
There is provided an impeller rotating about a rotary shaft, the impeller including: an inlet through which a fluid is introduced; an outlet through which the fluid is discharged; a supporter connected to the rotary shaft; a blade portion provided on the supporter; a shroud portion disposed to cover the blade portion; and a sealing portion including at least one sealing protrusion protruding in a direction that is in parallel with the rotary shaft, and disposed at a portion of the shroud portion, which configures the inlet.
-
Citations
14 Claims
-
1. An impeller rotating about a rotary shaft, the impeller comprising:
-
an inlet through which a fluid is introduced; an outlet through which the fluid is discharged; a supporter connected to the rotary shaft; a blade portion provided on the supporter; a shroud disposed to cover the blade portion; and a seal including at least one sealing protrusion protruding in an axial direction of the rotary shaft, the seal being coupled to the shroud at an outermost end of the shroud along the axial direction thereby forming a junction between the shroud and the seal, wherein a width of the seal, in a radial direction of the shaft, being measured above the junction between the seal and the shroud is greater than a width of the shroud, in the radial direction of the shaft, being measured at the junction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. An impeller rotating about a rotary shaft, the impeller comprising:
-
an inlet through which a fluid is introduced; an outlet through which the fluid is discharged; a supporter configured to rotate when the rotary shaft rotates; a blade portion provided on the supporter; a shroud disposed to cover the blade portion; and a seal being coupled to the shroud at an outermost end of the shroud along an axial direction, the outermost end configured the inlet along with a topmost surface of the supporter, the seal and the shroud being coupled at a junction between the seal and the shroud, wherein a topmost surface of the seal is higher than the topmost surface of the supporter, and wherein a width of the seal, in a radial direction of the shaft, being measured above the junction between the seal and the shroud is greater than a width of the shroud, in the radial direction of the shaft, being measured at the junction. - View Dependent Claims (10, 11, 12, 13, 14)
-
Specification