Pressure regulator
AssigneeOxford University Innovation Limited
InventorThomas Povey
Life of this patent
Estimating the term…
Abstract
A device (1; 101) for controlling the flow of a fluid through a conduit (2; 102; 402; 602; 702) from an upstream side (3; 103; 703) to a downstream side (5; 105; 405; 605; 705), the device (1; 101) comprising: a valve having a valve member (14; 114; 414; 514; 614) arranged to move reciprocally selectively to open and close one or more valve apertures (10; 110; 412; 512; 611, 612), thereby controlling flow of the fluid from the upstream side (3; 103; 703) to the downstream side (5; 105; 405; 605; 705); and means for introducing a reference pressure (24; 124; 324; 424; 524; 624); wherein said valve member (14; 114; 414; 514; 614) is acted on by the pressure of the downstream side (5; 105; 405; 605; 705) and the reference pressure so as to be moved by the difference between said pressures.
Claims21
A device for controlling a flow of a fluid through a conduit from an upstream side to a downstream side, the device comprising:
- a flange arranged for attaching the device to the conduit, wherein the flange defines a flange aperture that is substantially coaxial with a central axis of an upstream section of the conduit and with a central axis of a downstream section of the conduit;
- a housing provided as a separate structure within the conduit, wherein the housing extends from or through the flange aperture;
- a valve having a valve member arranged to move reciprocally to selectively open and close at least one valve aperture defined in an outer wall of the housing, thereby controlling flow of the fluid from the upstream side to the downstream side, wherein the downstream side has a downstream pressure;
- and
- an arrangement for introducing a reference pressure to act on the valve member;
- wherein said valve member is acted on by the downstream pressure and the reference pressure so as to be moved by a difference between said pressures.
Dependencies are inferred from the claim text.