SE7611475L - HYDRAULIC MACHINE - Google Patents
HYDRAULIC MACHINEInfo
- Publication number
- SE7611475L SE7611475L SE7611475A SE7611475A SE7611475L SE 7611475 L SE7611475 L SE 7611475L SE 7611475 A SE7611475 A SE 7611475A SE 7611475 A SE7611475 A SE 7611475A SE 7611475 L SE7611475 L SE 7611475L
- Authority
- SE
- Sweden
- Prior art keywords
- pressure
- piston
- area
- pump
- low
- Prior art date
Links
Classifications
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
-
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
- F04C2240/605—Shaft sleeves or details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
- Rotary Pumps (AREA)
- Rotary-Type Compressors (AREA)
- Reciprocating Pumps (AREA)
- Support Of The Bearing (AREA)
Abstract
The machine can work as a pump or a motor. In the first case, the fluid flows from the low-pressure side to the high-pressure side. In the second case it is the other way round. The pressure difference between high pressure and low pressure attempts to push the conveyor worm (1) towards the low-pressure side (65). In order to compensate for this axial thrust, the conveyor worm (1) is provided with a compensation piston (2). In addition there are frictional forces which act in an axial direction. In a motor these forces act in the same direction as the pressure force due to the pressure difference; in a pump they act in the opposite direction. In the case of the pump, the piston area should be chosen to be smaller, and in the case of the motor to be greater than would be required for pressure equalisation. So as not to have to provide the conveyor worm (1) with different pistons (for pump or motor mode), the free end of the piston is given a smaller area (6, d2) than would be required for pressure equalisation, said smaller area being acted upon by the pressure (65) which prevails at the other end of the conveyor worm (1). The piston (2) further has a second area (d1) which is acted upon by an intermediate pressure between the high pressure (67) and the low pressure (65). The sum of the smaller area (6, d2) and the second area (d1) is greater than the area which would be required for pressure equalisation. The intermediate pressure arises in a chamber (9) which is bounded by piston (2) and its bearing (3) and which communicates with the high pressure and low pressure side (67, 65) via leak points (64, 66). The throttle effect of these leak points changes as the piston (2) moves. <IMAGE>
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7611475A SE414813B (en) | 1976-10-15 | 1976-10-15 | HYDRAULIC MACHINE |
CH1211677A CH623894A5 (en) | 1976-10-15 | 1977-10-04 | Hydraulic screw machine |
GB4122477A GB1549546A (en) | 1976-10-15 | 1977-10-04 | Meshing-screw type rotary hydraulic machine |
NL7711023A NL7711023A (en) | 1976-10-15 | 1977-10-07 | HYDRAULIC MACHINE. |
IT6923677A IT1091184B (en) | 1976-10-15 | 1977-10-07 | SCREW TYPE PUMP OR HYDRAULIC MOTOR |
DE19772745646 DE2745646A1 (en) | 1976-10-15 | 1977-10-11 | HYDRAULIC MACHINE |
FR7731666A FR2367929A1 (en) | 1976-10-15 | 1977-10-14 | HYDRAULIC MACHINE |
PL20151777A PL112857B1 (en) | 1976-10-15 | 1977-10-14 | Screw-type hydraulic device |
JP12338877A JPS5349307A (en) | 1976-10-15 | 1977-10-14 | Screwwtype hydraulic machines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7611475A SE414813B (en) | 1976-10-15 | 1976-10-15 | HYDRAULIC MACHINE |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7611475L true SE7611475L (en) | 1978-04-16 |
SE414813B SE414813B (en) | 1980-08-18 |
Family
ID=20329149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7611475A SE414813B (en) | 1976-10-15 | 1976-10-15 | HYDRAULIC MACHINE |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5349307A (en) |
CH (1) | CH623894A5 (en) |
DE (1) | DE2745646A1 (en) |
FR (1) | FR2367929A1 (en) |
GB (1) | GB1549546A (en) |
IT (1) | IT1091184B (en) |
NL (1) | NL7711023A (en) |
PL (1) | PL112857B1 (en) |
SE (1) | SE414813B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2828348A1 (en) * | 1978-06-28 | 1980-01-10 | Allweiler Ag | SCREW MACHINE |
JPS63188477A (en) * | 1987-01-29 | 1988-08-04 | Kyocera Corp | Guide and electrification member for welding |
DE19508561C2 (en) * | 1995-03-10 | 2003-06-12 | Allweiler Ag | Screw Pump |
SE521443C2 (en) * | 1999-11-11 | 2003-11-04 | Svenska Rotor Maskiner Ab | Screw rotor machine with means for axially actuating at least one of the rotors |
DE102010005900A1 (en) * | 2010-01-27 | 2011-07-28 | Robert Bosch GmbH, 70469 | Hydraulic gear machine |
DE102017121882B3 (en) | 2017-09-21 | 2019-01-24 | Leistritz Pumpen Gmbh | Screw Pump |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE406958B (en) * | 1976-04-27 | 1979-03-05 | Imo Industri Ab | HYDRAULIC SCREWDRIVER |
-
1976
- 1976-10-15 SE SE7611475A patent/SE414813B/en not_active IP Right Cessation
-
1977
- 1977-10-04 GB GB4122477A patent/GB1549546A/en not_active Expired
- 1977-10-04 CH CH1211677A patent/CH623894A5/en not_active IP Right Cessation
- 1977-10-07 IT IT6923677A patent/IT1091184B/en active
- 1977-10-07 NL NL7711023A patent/NL7711023A/en not_active Application Discontinuation
- 1977-10-11 DE DE19772745646 patent/DE2745646A1/en active Granted
- 1977-10-14 PL PL20151777A patent/PL112857B1/en unknown
- 1977-10-14 JP JP12338877A patent/JPS5349307A/en active Granted
- 1977-10-14 FR FR7731666A patent/FR2367929A1/en active Granted
Also Published As
Publication number | Publication date |
---|---|
FR2367929B3 (en) | 1980-07-04 |
NL7711023A (en) | 1978-04-18 |
PL112857B1 (en) | 1980-11-29 |
SE414813B (en) | 1980-08-18 |
FR2367929A1 (en) | 1978-05-12 |
GB1549546A (en) | 1979-08-08 |
PL201517A1 (en) | 1978-05-22 |
IT1091184B (en) | 1985-06-26 |
JPS5349307A (en) | 1978-05-04 |
DE2745646C2 (en) | 1989-12-21 |
DE2745646A1 (en) | 1978-04-20 |
CH623894A5 (en) | 1981-06-30 |
JPS623281B2 (en) | 1987-01-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
MX9102094A (en) | BALANCED MECHANICAL SEAL SET | |
SE8604848L (en) | HYDROSTATIC AXIAL STORAGE | |
ES2097916T3 (en) | DOUBLE ACTING ACCELERATOR FOR USE WITH HYDRAULIC DRILLING PERCUSSORS. | |
JPS4833041B1 (en) | ||
ES332178A1 (en) | High pressure gear pump or engine with compensation of the game and wear. (Machine-translation by Google Translate, not legally binding) | |
ES8401575A1 (en) | Reciprocatory piston and cylinder machine. | |
GB1377730A (en) | Sealing devices for example for preventing leakages along piston rods | |
KR830000793A (en) | Shaft thrust bearing device | |
SE7611475L (en) | HYDRAULIC MACHINE | |
SE7514028L (en) | CONTROL PISTON DRIVE | |
GB782701A (en) | An improvement in or relating to gear pumps | |
ES409110A1 (en) | Hydraulic rack and pinion steering gear | |
GB1303221A (en) | ||
DE1905664A1 (en) | Friction welding device | |
ES320447A1 (en) | A device that comprises at least one cylinder where it is intended to move a first body in a piston way to vary the volume of a working space. (Machine-translation by Google Translate, not legally binding) | |
SE8005464L (en) | SET AND DEVICE FOR HYDRAULIC REINFORCEMENT OF THE STEERING DIFFERENCE | |
SE7604832L (en) | HYDRAULIC MACHINE | |
CN110259758A (en) | A kind of cylinder structure of adaptive resistance to lateral bending abrasion | |
GB581285A (en) | Improvements in packings or bearings | |
GB912232A (en) | Improvements in resilient guiding elements for piston and cylinder devices | |
GB1162178A (en) | Improvements in or relating to Sliding Seal Arrangements | |
SE7910433L (en) | MECHANICAL WORKING MACHINE | |
GB976054A (en) | Horizontal plain bearing | |
SU649191A1 (en) | Hydrostatic bearing of rolling roller barrel | |
SE9000592D0 (en) | COMPENSATION VALVE |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 7611475-0 Effective date: 19900706 Format of ref document f/p: F |