GB738296A - Improvements relating to rotary pumps - Google Patents
Improvements relating to rotary pumpsInfo
- Publication number
- GB738296A GB738296A GB2653952A GB2653952A GB738296A GB 738296 A GB738296 A GB 738296A GB 2653952 A GB2653952 A GB 2653952A GB 2653952 A GB2653952 A GB 2653952A GB 738296 A GB738296 A GB 738296A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotors
- ports
- casing
- teeth
- axes
- 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/02—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C2/06—Rotary-piston machines or pumps of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of other than internal-axis type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Multiple-Way Valves (AREA)
Abstract
738,296. Rotary pumps. ORR, H. C. H. Jan. 21, 1954 [Oct. 22, 1952], No. 26539/52. Class 110 (2). The pump comprises inner and outer rotors 15, 14 rotating about axes 35, 36 respectively. For clockwise rotation of the rotors, the chambers formed by the coacting teeth and recesses increase in volume on the right-hand side of the axes, the teeth not being in contact. During the discharge phase (left-hand side), the teeth contact one another (see Fig. 5). The sealing surfaces are generally semi-cylindrical and the radius of one surface, which is concave, exceeds that of the co-operating surface, which is convex, by an amount equal to the eccentricity of the rotors. One of the convex edges may be sharp to form a sealing line. The rotors, having the same number of teeth, are contained within a cavity 11 in a casing 10, which also encloses a stationary valve plate 12 located by dowels 13. A shaft 16 drives the inner rotor 15 from an electric motor to which a bridge-piece 19 is secured. The shaft may have bearings within the casing. The concave surfaces 32 of the outer rotor can be formed by drilling a number of holes axially, boring and turning. One or both rotors may be formed of laminated plastic material such as fabric-reinforced synthetic resin. One or more channels 39 may be provided in the periphery of the inner rotor to prevent trapping of liquid. Inlet and outlet passages 41, 42 lead to ports 43, 44 in the casing. In an alternative construction, the casing may have ports to communicate with ports in the periphery of the outer rotor instead of, or in addition to, ports at the end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2653952A GB738296A (en) | 1952-10-22 | 1952-10-22 | Improvements relating to rotary pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2653952A GB738296A (en) | 1952-10-22 | 1952-10-22 | Improvements relating to rotary pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB738296A true GB738296A (en) | 1955-10-12 |
Family
ID=10245222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2653952A Expired GB738296A (en) | 1952-10-22 | 1952-10-22 | Improvements relating to rotary pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB738296A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932850A (en) * | 1988-03-14 | 1990-06-12 | Valavaara Viljo K | Rotary drive having inner and outer interengaging rotors |
| US5066207A (en) * | 1990-05-08 | 1991-11-19 | Valavaara William K | Rotary device |
| WO1994028312A1 (en) * | 1993-05-25 | 1994-12-08 | Round George F | Rotary pump |
-
1952
- 1952-10-22 GB GB2653952A patent/GB738296A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4932850A (en) * | 1988-03-14 | 1990-06-12 | Valavaara Viljo K | Rotary drive having inner and outer interengaging rotors |
| US5066207A (en) * | 1990-05-08 | 1991-11-19 | Valavaara William K | Rotary device |
| WO1994028312A1 (en) * | 1993-05-25 | 1994-12-08 | Round George F | Rotary pump |
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