Helico-axial pump, rotor for a helico-axial pump as well as method for journalling a rotor in a helico-axial pump
US9234529B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2011 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Aug 26, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D31/00
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a helico-axial pump (1) for conveying a multiphase mixture (M), which helico-axial pump (1) includes a rotor (2) rotatably journalled about a longitudinal axis (A) in a pump housing (6) and having a first part rotor (21) and a second part rotor (22), wherein the first part rotor (21) and the second part rotor (22) include a compression stage (K, K1E, K1A, K2E K2A) having a helico-axial impeller (3) and a stator (4) for the compression of the multiphase mixture (M). In accordance with the invention, a hydrodynamic stabilization bush (70) having a stabilization surface (700) is provided and formed between the first part rotor (21) and the second part rotor (22) such that a stabilization gap (8) is formed before the stabilization surface (700) so that a hydrodynamic stabilization layer (S) is formed from a stabilization medium (M) in the stabilization gap (8) in the operating state. The invention further relates to a rotor (2) for a helico-axial pump (1), to a hybrid pump having a rotor (2) for a helico-axial pump (1) as well as to a method for the hydrodynamic journalling of a rotor (2) of a helico-axial pump (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.