Fluid handling – Line condition change responsive valves – Bi-directional flow valves
Patent
1989-10-23
1990-10-16
Hepperle, Stephen M.
Fluid handling
Line condition change responsive valves
Bi-directional flow valves
137508, 1375125, 251 16, F16K 2116
Patent
active
049627864
ABSTRACT:
A hydraulic fuse monitors the quantity of hydraulic fluid passing through the fuse, and then blocks such flow when a selected quantity of fluid has passed through the fuse which includes: a body structure containing cavity structure; a primary piston in the cavity structure and movable endwise to control fluid flow through a first port; a sleeve, and a slider in the cavity structure, and in the path of fluid flow toward the primary piston; the sleeve and slider being coaxially relatively axially movable, and there being a regulator spring acting to urge the sleeve in one axial direction; and fluid flow control slots formed by the sleeve and slider to control flow both to the piston for controllably displacing same, and to the first port, and characterized in that as the forward flow rate through the fuse reaches a threshold, the piston begins its movement toward the port, and as the flow rate increases above the threshold, relative axial movement between the sleeve and slider acts to maintain nearly constant the fluid pressure drop across primary slot means included with the control slots, and to controllably meter fluid flow to the piston via metering slot means included within the control slots, for displacing the first piston as aforesaid; whereby the piston is displaced to close the first port after a required quantity of fluid has passed through the fuse.
REFERENCES:
patent: 2592486 (1952-04-01), Stark
patent: 2592487 (1952-04-01), Stark
patent: 4655245 (1987-04-01), Gellerson
patent: 4819688 (1989-04-01), Field
Dowty Decoto, Inc.
Haefliger William W.
Hepperle Stephen M.
LandOfFree
Hydraulic fuse with pressure regulator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulic fuse with pressure regulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic fuse with pressure regulator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-844681