Turbomachines having guide ducts
First Claim
Patent Images
1. A turbomachine compressor for compressing a working medium, the turbomachine compressor comprising:
- a housing having a housing duct with a pipe connection for discharging the compressed working medium;
a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duet side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, and wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side; and
wherein the guide blade ducts have a concave wall surface that faces the rotor, wherein the working medium can flow against the concave wall surface.
1 Assignment
0 Petitions
Accused Products
Abstract
Turbomachines having guide ducts are disclosed. One disclosed example turbomachine includes a rotor rotatable about an axis of rotation and having rotor blade ducts, a housing having housing ducts to allow the inflow or outflow of working medium and guide blade ducts fixed in the housing, where the rotor blade ducts are in fluid communication with the housing ducts via the guide blade ducts.
17 Citations
27 Claims
-
1. A turbomachine compressor for compressing a working medium, the turbomachine compressor comprising:
-
a housing having a housing duct with a pipe connection for discharging the compressed working medium; a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duet side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, and wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side; and wherein the guide blade ducts have a concave wall surface that faces the rotor, wherein the working medium can flow against the concave wall surface. - View Dependent Claims (2, 3, 4)
-
-
5. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, and wherein the guide blade ducts have a width that increases from the constriction toward the guide blade duct opening on the rotor side in a plane perpendicular to the axis of rotation in a region between the guide blade duct opening on the housing duct side and the guide blade duct opening on the rotor side.
-
-
6. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, and wherein the guide blade ducts have a height that increases from the constriction toward the guide blade duct opening on the rotor side in relation to a plane perpendicular to the axis of rotation between the guide blade duct opening on the housing duct side and the guide blade duct opening on the rotor side.
-
-
7. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, and wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, and wherein the guide blade ducts each have a center line spaced apart uniformly from a wall surface facing the rotor and a wall surface facing away from the rotor, the center line dividing the cross-sectional profile of a guide blade duct into a segment on the housing duct side and a segment on the rotor side, wherein the cross-sectional profile of each guide blade duct is asymmetrical in relation to the center line. - View Dependent Claims (8)
-
-
9. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, and wherein the guide blade duct openings on the housing duct side lie on a cylindrical circumferential surface positioned coaxially with the axis of rotation, and the guide blade ducts guide the working medium in the center with a flow path that passes through the cylinder circumferential surface at a point of intersection at which the tangent to the flow path and the tangent to the cylinder circumferential surface form an angle α
1 to which the following applies;
5°
≤
α
1≤
20°
, wherein the tangent to the cylinder circumferential surface lies in a plane perpendicular to the axis of rotation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
10. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, and wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, and wherein the guide blade duct openings on the rotor side lie on a cylinder circumferential surface positioned coaxially with the axis of rotation and guide the working medium in the center with a flow path that passes through the cylinder circumferential surface at a point of intersection at which the tangent to the flow path and the tangent to the cylinder circumferential surface form an angle α
2 to which the following applies;
5°
≤
α
2≤
20°
, wherein the tangent to the cylinder circumferential surface lies in a plane perpendicular to the axis of rotation.
-
-
18. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, wherein guide blades that define the guide blade ducts are positioned radially outward from an outer periphery of the rotor, and wherein the rotor has a rotor blade support to support the rotor blades and a rotationally symmetrical guide contour, against which working medium can flow and which deflects a flow path for the working medium between the rotor blade ducts and a diffuser space. - View Dependent Claims (19, 20)
-
-
21. A turbomachine comprising:
-
a housing having a housing duct for an inflow or an outflow of working medium, and a rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, wherein guide blades that define the guide blade ducts are positioned radially outward from an outer periphery of the rotor, and wherein the guide blade ducts in the housing are formed by spiral guide blades, which are mounted on an annular guide blade support, covered by a cover and have a convex blade surface facing away from the axis of rotation. - View Dependent Claims (22, 23, 24, 25, 26)
-
-
27. A turbomachine comprising:
-
a housing having a housing duct for an inflow of steam, and a rotor operatively coupled to a generator, the rotor positioned to be rotatable about an axis of rotation and having a multiplicity of rotor blades that define rotor blade ducts, wherein the rotor blade ducts fluidly communicate with the housing duct via guide blade ducts that are fixed in relation to the housing and have a guide blade duct opening on a rotor side and a guide blade duct opening on a housing duct side, wherein the guide blade ducts have a constriction and a divergent cross section between the constriction and the guide blade duct opening on the rotor side, wherein the guide blade ducts have a convergent cross section between the constriction and the guide blade duct opening on the housing duct side, wherein guide blades that define the guide blade ducts are positioned radially outward from an outer periphery of the rotor and wherein the turbomachine is a steam turbine in an Organic Rankine Cycle process.
-
Specification