| 摘要 |
A valve assembly (10) includes a housing (12) including an inlet (14) and an outlet (16). A tubular inlet spool (18) is located in the inlet (14) and has a closed downstream end (22) and a plurality of spool openings (24) through an outer surface (26) of the inlet spool (18). A tubular sleeve (28) is located over the circumference of the inlet spool (18) and is movable to substantially uncover the plurality of spool openings (24) thereby allowing a fluid flow (54) through the valve assembly (10). A method of flowing a fluid (54) through a valve assembly (10) includes urging the fluid (54) into a tubular inlet spool (18) of the valve assembly (10) to a closed downstream end (22) of the inlet spool (18). The fluid (54) is directed toward a plurality of spool openings (24) disposed in an outer surface (26) of the inlet spool (18). A tubular sleeve (28) located over the circumference of the inlet spool (18) is articulated to substantially uncover the plurality of spool openings (24), allowing the fluid (54) to flow therethrough. |
