BG103588A - Adjustable pumping device - Google Patents
Adjustable pumping deviceInfo
- Publication number
- BG103588A BG103588A BG103588A BG10358899A BG103588A BG 103588 A BG103588 A BG 103588A BG 103588 A BG103588 A BG 103588A BG 10358899 A BG10358899 A BG 10358899A BG 103588 A BG103588 A BG 103588A
- Authority
- BG
- Bulgaria
- Prior art keywords
- pump
- motor
- adjustable
- hydraulic
- pumping device
- Prior art date
Links
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The adjustable pumping device is designed to supply alternating volume discharge to the actuating mechanisms of displacement hydraulic drives. It attains smooth and precision adjustment of the discharge from zero to maximum and vice versa by making use of standard non-regulated hydraulic machines which are cheap, compact and reliable. The device comprises of an adjustable electric motor (1), mechanically connected to a basis non-adjustable and non-reversible displacement pump (2), reservoir with operation liquid and pipe connections. To the composition of the pumping device also an auxiliary hydraulic motor-pump is included, mechanically connected to an asynchronous electric motor of independent or parallel and mixed, coaxial excitation. The outlet of the basic pump (2) is hydraulically connected by means of pipe connection (5) to the inlet of the motor-pump (7), and a safety valve (13) and reversing valves (3, 6) are hydraulically connected in parallel to the pipe connection (5) for one-way isolation, from the pressure (4) and an auxiliary intake (12) pipeline, respectively. The hydraulic output of the motor-pump (7) is connected to the overflow pipeline (9) in the system. 2 claims, 2 figures
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG103588A BG63759B1 (en) | 1999-07-19 | 1999-07-19 | Adjustable pumping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BG103588A BG63759B1 (en) | 1999-07-19 | 1999-07-19 | Adjustable pumping device |
Publications (2)
Publication Number | Publication Date |
---|---|
BG103588A true BG103588A (en) | 2001-05-31 |
BG63759B1 BG63759B1 (en) | 2002-11-29 |
Family
ID=3927834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BG103588A BG63759B1 (en) | 1999-07-19 | 1999-07-19 | Adjustable pumping device |
Country Status (1)
Country | Link |
---|---|
BG (1) | BG63759B1 (en) |
-
1999
- 1999-07-19 BG BG103588A patent/BG63759B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
BG63759B1 (en) | 2002-11-29 |
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