GB631597A - Improvements in or relating to rotary valves for pumps - Google Patents
Improvements in or relating to rotary valves for pumpsInfo
- Publication number
- GB631597A GB631597A GB3368546A GB3368546A GB631597A GB 631597 A GB631597 A GB 631597A GB 3368546 A GB3368546 A GB 3368546A GB 3368546 A GB3368546 A GB 3368546A GB 631597 A GB631597 A GB 631597A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ports
- pump
- valve
- pair
- port
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0452—Distribution members, e.g. valves
- F04B1/0456—Cylindrical
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
631,597. Rotary cylindrical valves. VARLEY PUMPS & ENGINEERING, Ltd., and VARLEY, C. H. Nov. 13, 1946, No. 33685. [Class 135] [Also in Group XXVIII] A rotary valve for a multi-cylinder highhigh-pressure liquid supply pump in which the pistons are reciprocated by a swashplate is so timed in relation to the piston movements that it lags up to 20 degrees behind its correct position, thus silencing the pump. The valve, which is balanced hydraulically, is rotated through an Oldham coupling 7, Fig. 1, by the swashplate shaft 6 and comprises a core 5, Fig. 7, having a suction cavity 11 and delivery cavity 12, fixed. within a sleeve 8, Fig. 8, having two pairs of ports a, c<SP>1</SP>, and b, c, from the delivery and suction cavities respectively. The valve rotates within a fixed liner 9, Fig. 6, having three sets of ports, one pair A acting in turn as delivery ports, a pair B acting in turn as suction ports, and three pump cylinder ports C. A pair of peripheral grooves d on either side of the port c<SP>1</SP> connect with the suction cavity, while a pair d<SP>1</SP> on either side of the port c connect with the delivery cavity via holes 14 and passages 15, 16 so that the valve will be balanced with respect to the pressure in the ports c, c<SP>1</SP>. Opposite, of the same length as, and having a combined area equal to each pump cylinder port C, are two crescent-shaped grooves e on the inner surface of the liner 9 which register in turn with the peripheral grooves when the opposite pump port is under pressure, so that the valve will be balanced with respect to the pressure in the pump ports.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3368546A GB631597A (en) | 1946-11-13 | 1946-11-13 | Improvements in or relating to rotary valves for pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3368546A GB631597A (en) | 1946-11-13 | 1946-11-13 | Improvements in or relating to rotary valves for pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB631597A true GB631597A (en) | 1949-11-07 |
Family
ID=10356125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3368546A Expired GB631597A (en) | 1946-11-13 | 1946-11-13 | Improvements in or relating to rotary valves for pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB631597A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11644020B2 (en) | 2019-07-29 | 2023-05-09 | Diversey, Inc. | Fluid dosing system |
-
1946
- 1946-11-13 GB GB3368546A patent/GB631597A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11644020B2 (en) | 2019-07-29 | 2023-05-09 | Diversey, Inc. | Fluid dosing system |
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