Valves and valve actuation – Fluid actuated or retarded – Pilot or servo type motor
Patent
1998-08-24
2000-06-20
Hepperle, Stephen M.
Valves and valve actuation
Fluid actuated or retarded
Pilot or servo type motor
137494, 251 44, 251 45, 251 50, F16K 31124
Patent
active
060767987
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a fluid actuating valve.
BACKGROUND OF THE INVENTION
Chinese Utility Model Patent No. CN2038980u discloses a diaphragm shutoff valve. The valve comprises a valve body with a valve seat, a valve cap fixed hermetically to the valve body, a diaphragm and a valve core located in the valve chamber defined by the valve body and the valve cap. The diaphragm edge is between the valve body and the valve cap and the diaphragm is disposed to the valve core. There is a vertical chamber in the valve body and the valve cap, which has three openings that are connected to the outlet and inlet passage of the valve body and the fluid chamber defined by the diaphragm and the valve cap. A valve rod together with a set of valve clacks are provided in the vertical chamber, which constitutes a small manual control valve. When the valve rod is rotated clockwise, the clacks will block the outlet of the valve body and open the inlet of the valve body at the same time, by which the pressure fluid coming from the inlet passage of the valve body enters into the liquid chamber through vertical chamber, pushes the diaphragm and valve core downwards and then against the valve seat, and as a result, the shutoff valve is shut. When the rod is rotated anti-clockwise, the clacks will block the opening connected to the inlet of the valve body and open the opening connected to the outlet of the valve body at the same time, by which the pressure fluid flows out of the liquid chamber through vertical chamber into the inlet fluid passage of valve body, pushes the valve core and diaphragm away from valve seat, and as a result, the shutoff valve is opened.
The above-mentioned shutoff valve is controlled by a small control valve working under the force of the pressure fluid, which make it convenient to open or shut the valve. But the shutoff valve also has some defects resulting from its structure.
OBJECT OF THE INVENTION
The object of the present invention is to provide a fluid actuating valve with small resistance force, low pressure loss, long durability and reliability, and in particular, a heavy-caliber fluid actuating valve which can work at high pressure.
The fluid actuating valve of the present invention has a structure as follows:
SUMMARY OF THE INVENTION
The present invention relates to a fluid actuating valve composed of a valve body, a valve cap, a valve core assembly, a fluid-controlling pipe assembly and an actuating element, characterized in that: the valve body comprises a longitudinal tubular body and a transversal cylinder body, the longitudinal tubular body defines a fluid passage from the inlet to the outlet of the valve body, and the transversal cylinder body defines a valve chamber, a transversal well is disposed in the middle of the longitudinal tubular body for connecting the longitudinal fluid passage with the valve chamber, and a valve seat is formed on the upper surface of the transversal well, a valve core assembly is disposed on the transversal well, which engages with the inner wall of the well and the valve seat and is lifted by the pressure fluid coming from the valve inlet to open the valve, a pressure-releasing hole is provided at the outlet side of the longitudinal tubular body to connect the valve chamber with the longitudinal fluid passage to the outlet side, an actuating element is installed in the valve chamber under the valve cap, which can drop the valve core assembly to shut the valve by the pressure fluid coming from the fluid-controlling pipe assembly.
A fluid actuating valve composed of a valve body, a valve cap, a valve core assembly, a fluid-controlling pipe assembly and an actuating element, characterized in that: the valve body comprises a longitudinal tubular body and a transversal cylinder body, the longitudinal tubular body defines a longitudinal fluid passage, and the transversal cylinder body defines a valve chamber, a transversal well is disposed in the middle of the longitudinal tubular body to connect the vertical fluid passage
REFERENCES:
patent: 570727 (1896-11-01), Gale
patent: 1176535 (1916-04-01), Fulton
patent: 1486291 (1924-03-01), McAneny
patent: 1579940 (1926-04-01), Iversen
patent: 2417994 (1947-03-01), Sheets
patent: 2825526 (1958-03-01), Zuiderhoek
patent: 2991796 (1961-07-01), Griswold
patent: 3282556 (1966-11-01), Hancock
patent: 4058287 (1977-11-01), Fromfield
Bastianelli John
Hepperle Stephen M.
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