CA2039813A1 - Boost modified, droop compensated direct acting pressure regulator - Google Patents
Boost modified, droop compensated direct acting pressure regulatorInfo
- Publication number
- CA2039813A1 CA2039813A1 CA 2039813 CA2039813A CA2039813A1 CA 2039813 A1 CA2039813 A1 CA 2039813A1 CA 2039813 CA2039813 CA 2039813 CA 2039813 A CA2039813 A CA 2039813A CA 2039813 A1 CA2039813 A1 CA 2039813A1
- Authority
- CA
- Canada
- Prior art keywords
- boost
- diaphragm
- disk holder
- orifice tube
- end cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
A self-operated droop compensated regulator includes a spring easing and a lower easing, sandwiching a diaphragm. The lower casing has inlet and outlet ports. A one piece cam stem and relief seat is mounted for movement with the diaphragm and includes a first cam surface far directly engaging a movable disk holder. The disk holder is movable in a straight line within an orifice tube that supports the valve seat. The cam surface moves the disk holder at a nonlinear rate with respect to the diaphragm. A
pressure relief mechanism is incorporated within the upper portion of the diaphragm. A bias spring acts, between a second similar cam surface on the opposite side of the stem and the disk holder, to maintain the first cam surface in contact with the disk holder. The orifice tube has a removable boost end cap for providing a boost action to the diaphragm. One type of boost end cap is snapped in position over the end of the orifice tube and has a plurality of fingers with latch portions that engage an annular groove on the orifice tube. One of the fingers has a hook end that forms a guide for the rear of the cam stem in a sliding contact. A hole in the end cap reduces the boost effect. Another type of boost end cap has a pair of arrow-shaped fingers that engage a pair of retention slots in the end of the orifice tube and a guide finger that engages a guide slot on the tube. The end of the guide finger engages the rear of the cam stem.
pressure relief mechanism is incorporated within the upper portion of the diaphragm. A bias spring acts, between a second similar cam surface on the opposite side of the stem and the disk holder, to maintain the first cam surface in contact with the disk holder. The orifice tube has a removable boost end cap for providing a boost action to the diaphragm. One type of boost end cap is snapped in position over the end of the orifice tube and has a plurality of fingers with latch portions that engage an annular groove on the orifice tube. One of the fingers has a hook end that forms a guide for the rear of the cam stem in a sliding contact. A hole in the end cap reduces the boost effect. Another type of boost end cap has a pair of arrow-shaped fingers that engage a pair of retention slots in the end of the orifice tube and a guide finger that engages a guide slot on the tube. The end of the guide finger engages the rear of the cam stem.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/505,359 US4972871A (en) | 1988-02-29 | 1990-04-05 | Boost modified, droop compensated direct acting pressure regulator |
| US07/505,359 | 1990-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2039813A1 true CA2039813A1 (en) | 1991-10-06 |
| CA2039813C CA2039813C (en) | 2001-08-21 |
Family
ID=24010005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002039813A Expired - Fee Related CA2039813C (en) | 1990-04-05 | 1991-04-04 | Boost modified, droop compensated direct acting pressure regulator |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2039813C (en) |
-
1991
- 1991-04-04 CA CA002039813A patent/CA2039813C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2039813C (en) | 2001-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKLA | Lapsed |
Effective date: 20040405 |