IT1167493B - Unloader for high pressure spraying system - Google Patents
Unloader for high pressure spraying systemInfo
- Publication number
- IT1167493B IT1167493B IT23816/81A IT2381681A IT1167493B IT 1167493 B IT1167493 B IT 1167493B IT 23816/81 A IT23816/81 A IT 23816/81A IT 2381681 A IT2381681 A IT 2381681A IT 1167493 B IT1167493 B IT 1167493B
- Authority
- IT
- Italy
- Prior art keywords
- bypass
- outlet
- pressure
- pressure differential
- valve
- Prior art date
Links
- 238000005507 spraying Methods 0.000 title 1
- 239000007788 liquid Substances 0.000 abstract 2
Landscapes
- Safety Valves (AREA)
Abstract
The appts. is used for connection between a pump and a hydraulic load, and includes a housing having an inlet for liquid under pressure, an outlet for connection with the load and a bypass outlet. A bypass valve is associated with the bypass outlet and is movable between closed and open positions. A pressure differential is established in response to liquid flow from the inlet to outlet. A valve operator is connected with the bypass valve and is responsive to the pressure differential to actuate it. Pref. the housing forms a cylinder and the valve operator is a piston, the pressure differential being established by a difference in pressure on either side of the piston. This arrangement minimises back pressure peaks and does not require constant run flow through the bypass.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/262,825 US4385640A (en) | 1980-08-25 | 1981-05-12 | Hydraulic unloader |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8123816A0 IT8123816A0 (en) | 1981-09-07 |
IT1167493B true IT1167493B (en) | 1987-05-13 |
Family
ID=22999224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23816/81A IT1167493B (en) | 1981-05-12 | 1981-09-07 | Unloader for high pressure spraying system |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1167493B (en) |
-
1981
- 1981-09-07 IT IT23816/81A patent/IT1167493B/en active
Also Published As
Publication number | Publication date |
---|---|
IT8123816A0 (en) | 1981-09-07 |
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