Plate-type valve for a pressured-fluid machine, and a valving plate assembly therefor
AssigneeDresser-Rand Company
InventorsThomas D. O'Leary, Terry J. Ott
Life of this patent
Estimating the term…
Abstract
To minimize metal-to-metal engagements of valve components, and relative movements therebetween, as an end toward reducing wear, the valving plate has an integral bushing, and both the plate and the bushing are formed of a non-metallic material. The bushing, therefore, moves with the valving plate; it has grooves formed therein in which to nest the plate-biasing spring.
Claims9
A plate-type valve for a pressured-fluid machine such as a gas compressor, comprising:
- a valve seat;
- a valve guard;
- a valving plate interposed between said guard and said seat for movement therebetween;
- a spring interposed between said plate and said guard for biasing said plate into engagement with said seat;
- and
- bushing means, integral with said plate, said bushing having a pair of grooves formed therein for (a) guiding said spring, (b) nesting said spring within said grooves and across said valving plate, (c) preventing relative rotation between said plate and said spring, and between said bushing means and said spring for preventing undue wear therebetween and said valve guard having means for engaging and guiding said valving plate and said bushing for properly aligning said valving plate relative to said valve seat.
For a plate-type valve, for a pressured-fluid machine such as a gas compressor, having (a) a valve seat, (b) a valve guard, and (c) a spring for biasing a valving plate into engagement with said seat, a valving plate assembly therefor, comprising:
- a valving plate, for interpositioning between said seat and guard;
- and
- bushing means, integral with said plate, said bushing having a pair of grooves formed therein for (a) guiding said spring, (b) nesting said spring within said grooves and across said valving plate, (c) preventing relative rotation between said plate and said spring, and between said bushing means and said spring for preventing undue wear therebetween, and said valve guard having means for engaging and guiding said valving plate and said bushing for properly aligning said valving plate relative to said valve seat.
Dependencies are inferred from the claim text.