SE9702758L - starting valve - Google Patents
starting valveInfo
- Publication number
- SE9702758L SE9702758L SE9702758A SE9702758A SE9702758L SE 9702758 L SE9702758 L SE 9702758L SE 9702758 A SE9702758 A SE 9702758A SE 9702758 A SE9702758 A SE 9702758A SE 9702758 L SE9702758 L SE 9702758L
- Authority
- SE
- Sweden
- Prior art keywords
- high pressure
- pump
- fluid
- pressure side
- screws
- Prior art date
Links
- 239000012530 fluid Substances 0.000 abstract 4
- 230000001050 lubricating effect Effects 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
- F01C1/14—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F01C1/16—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/04—Lubrication
- F01C21/045—Control systems for the circulation of the lubricant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/021—Control systems for the circulation of the lubricant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A start valve supplies lubricating fluid directly to the axial seal for the screw drive shaft on the high pressure side of the pump. - The pump contains a drive screw rotated by a shaft, which cooperates with one or more slave screws inside a pump housing (1) with low and high pressure sides. The two screws form a seal against each other and also against the pump housing so that as they rotate a fluid is allowed to flow in the axial direction of the screws. During pump operation the fluid lubricates an axial seal for the drive shaft where it exits the pump housing on the high pressure side. A start valve (41) supplies fluid from the high pressure side of the machine directly to the axial seal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702758A SE9702758L (en) | 1997-07-21 | 1997-07-21 | starting valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9702758A SE9702758L (en) | 1997-07-21 | 1997-07-21 | starting valve |
Publications (2)
Publication Number | Publication Date |
---|---|
SE9702758D0 SE9702758D0 (en) | 1997-07-21 |
SE9702758L true SE9702758L (en) | 1999-01-22 |
Family
ID=20407789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9702758A SE9702758L (en) | 1997-07-21 | 1997-07-21 | starting valve |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE9702758L (en) |
-
1997
- 1997-07-21 SE SE9702758A patent/SE9702758L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE9702758D0 (en) | 1997-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR0314279A (en) | Drive unit with a retarder | |
NO970923L (en) | Multiple Fluid Module Dispenser | |
ATE349639T1 (en) | PUMP | |
SE9400673L (en) | Screw compressor with axial balancing means utilizing various pressure levels and method for operating such a compressor | |
SE9702758D0 (en) | starting valve | |
US1595381A (en) | Oil pump | |
SE9201206D0 (en) | PUMP WITH VARIABLE DEPLACEMENT | |
EA200301212A1 (en) | SCREW PUMP WITH HYDRAULIC SEAL | |
WO2003027437A1 (en) | Rotary fluid machine | |
US4131400A (en) | Hydraulic rotary screw machine with axial balancing piston | |
KR930004637A (en) | Fluid pumps and rotary machines having them | |
DE59604221D1 (en) | Drive unit | |
KR100412610B1 (en) | Oil pump | |
JPS57135292A (en) | Screw compressor | |
RU2382247C1 (en) | Radial water plain slider bearing support | |
RU2347962C1 (en) | Axial water-jacked plain bearing | |
GB2185288A (en) | Screw type compression and expansion machine | |
SE9703675L (en) | Method and device of screw rotor machine to prevent lubricant penetration into its rotor housing | |
SE9401317D0 (en) | Rotary screw compressor with thrust balancing means | |
SE516933C2 (en) | Combustion engine with two pairs of screw rotors | |
KR960018247A (en) | Lubricator of scroll compressor | |
GB747874A (en) | Improvements in rotary compressors, pumps and the like | |
KR980002895A (en) | Centrifugal pump | |
SE8307038L (en) | DEVICE FOR ANGULATING HYDRAULIC MACHINES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 9702758-5 |