Pumps – Intensifier – Ram type
Patent
1976-05-11
1977-10-18
Cline, William R.
Pumps
Intensifier
Ram type
137517, 251 65, F04F 702
Patent
active
040543994
ABSTRACT:
A ram valve is connected in the supply line through which water flows at a high mass flow rate. A branch line branches off upstream of the valve and includes a check valve and a pressure vessel upstream of the check valve. The ram valve is constructed to have an elongated valve housing and a movable valve body therein, slidable axially in the direction of flow, and shaped to provide for smooth fluid flow therethrough when open and forming a smoothly continuous decreasing flow cross-sectional area. The valve body is held open by an adjustable force, such as a spring or a magnet. When the force is exceeded, the valve body closes suddenly, causing a pressure pulse to be transmitted through the then open check valve into the branch pressure vessel to build up pressure therein. A closed supply pressure vessel having an air cushion is included in the inlet supply line to the valve. The pressure vessels, the supply line, the ram valve and the check valve are a unitary assembly capable of installation and transportation as a unit, the inlet supply line preferably being formed as a spiral coil surrounding the branch pressure vessel and terminating in a tangential outflow to decrease flow turbulence to the valve.
REFERENCES:
patent: 337112 (1886-03-01), Baer
patent: 1285629 (1918-11-01), Crowe
patent: 1447342 (1923-03-01), Dodson
patent: 1706920 (1929-03-01), Fusch et al.
patent: 1710214 (1929-04-01), Hassold
patent: 3919991 (1975-11-01), Neschke et al.
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