IT1167493B - Unloader for high pressure spraying system - Google Patents

Unloader for high pressure spraying system

Info

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
Application number
IT23816/81A
Other languages
Italian (it)
Other versions
IT8123816A0 (en
Inventor
Jacob E Iverson
Original Assignee
Jacob E Iverson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/262,825 external-priority patent/US4385640A/en
Application filed by Jacob E Iverson filed Critical Jacob E Iverson
Publication of IT8123816A0 publication Critical patent/IT8123816A0/en
Application granted granted Critical
Publication of IT1167493B publication Critical patent/IT1167493B/en

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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.
IT23816/81A 1981-05-12 1981-09-07 Unloader for high pressure spraying system IT1167493B (en)

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)

Also Published As

Publication number Publication date
IT8123816A0 (en) 1981-09-07

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