Pressure-variable valve device and set-pressure adjusting device for the valve device
First Claim
1. A pressure-variable valve device comprising:
- a main body defining a fluid conduit having a fluid inlet port and a fluid discharge port;
a valve element disposed in the main body for releasably closing the conduit;
a rotating member rotatably mounted within the main body to be rotatable about a central axis to vary a set pressure of the valve element; and
a rotation control mechanism for controlling rotation of the rotating member and comprising at least one permanent magnet structure disposed in the main body to undergo linear reciprocal movement along a defined path in the main body, and a displacement transmission mechanism for converting the linear movement of the at least one permanent magnet structure into angular movement of the rotating member in a direction corresponding to the direction of linear movement of the permanent magnet structure.
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Accused Products
Abstract
A pressure-variable valve device which is adapted to be embedded in the human body and which is capable of changing a difference in pressure between an inlet-side and an outlet-side duct, the valve device including a rotating member capable of rotating around a central axis in directions to vary a set pressure for a valve, and a rotation control mechanism far controlling the rotation of the rotating member wherein the rotation control mechanism includes permanent magnet structure supported by the valve-device main body as to be capable of making a linear reciprocal translation in directions, and displacement transmission mechanisms, for rotating the rotating member in the direction corresponding to the direction of the translation of the permanent magnet structures. A set-pressure adjusting device includes a magnetic field generating mechanism which generates a magnetic field in which the permanent magnet structures cause the rotating member to rotate in the same direction.
127 Citations
28 Claims
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1. A pressure-variable valve device comprising:
- a main body defining a fluid conduit having a fluid inlet port and a fluid discharge port;
a valve element disposed in the main body for releasably closing the conduit;
a rotating member rotatably mounted within the main body to be rotatable about a central axis to vary a set pressure of the valve element; and
a rotation control mechanism for controlling rotation of the rotating member and comprising at least one permanent magnet structure disposed in the main body to undergo linear reciprocal movement along a defined path in the main body, and a displacement transmission mechanism for converting the linear movement of the at least one permanent magnet structure into angular movement of the rotating member in a direction corresponding to the direction of linear movement of the permanent magnet structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
- a main body defining a fluid conduit having a fluid inlet port and a fluid discharge port;
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19. A pressure-variable valve device comprising:
- a housing defining a fluid conduit having a fluid inlet port and a fluid discharge port;
a movable valve element disposed in the housing for releasably closing the fluid conduit;
a spring member disposed in the housing for applying a biasing force to the valve element to close the conduit;
a rotating member rotatably mounted within the main body to undergo angular movement in opposite directions about a central axis to deform the spring element and thereby vary the biasing force applied to the valve element by the spring member;
at least one permanent magnet disposed in the housing to undergo movement along a defined path to control angular movement of the rotating member; and
a transmission mechanism for converting movement of the at least one permanent magnet into angular movement of the rotating member in a direction corresponding to the movement of the at least one permanent magnet. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28)
- a housing defining a fluid conduit having a fluid inlet port and a fluid discharge port;
Specification