US1685003A - Bucket for rotary pumps - Google Patents
Bucket for rotary pumps Download PDFInfo
- Publication number
- US1685003A US1685003A US752257A US75225724A US1685003A US 1685003 A US1685003 A US 1685003A US 752257 A US752257 A US 752257A US 75225724 A US75225724 A US 75225724A US 1685003 A US1685003 A US 1685003A
- Authority
- US
- United States
- Prior art keywords
- bucket
- blade
- fluid
- rotary pumps
- casing
- 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 - Lifetime
Links
- 239000012530 fluid Substances 0.000 description 14
- 238000010276 construction Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 241000845077 Iare Species 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- -1 gasolines Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F01C1/40—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member
- F01C1/44—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member with vanes hinged to the inner member
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/40—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member
- F04C18/44—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member with vanes hinged to the inner member
Definitions
- Another object of my invention is to provide an iniiproved bucket construction tor rotary pumps which will permit hip h performance over a wide range of operation.
- a further object of my invention is to provide a bucket construction for rotary pumps which will tend to follow the contour of the casing reactionary of the fluid while in operation.
- a still further object at my invention is to provide a bucket construction for rotary pumps adapted to follow the casino; reactionary of the fluid impact. and discl'iare e said fluid from the bucket by centrifugal torce duringthe cycle 01. operation.
- a much sought object of my invention is to provide a bucket construction for rotary pumps adapted to improve the volumetric etliciency thereof during; operation.
- Fig. 1 represents an end elevated view of the conventional rotary pump with the head removed. and wherein is shown buckets of my construction.
- Fig. 2 represents a cross-sectional view of Fig. 1 taken on line 1-1 showing the relation of easing, rotating element, and intake opening; as well as discharge.
- Fig. 4. represents cross-sectional projected View or 3 taken on line lllllll.
- Fig. 1 is shown to be a conventional lcsig'n of r tary pump mounted on a base, the casing); oi which is designated by numeral 1.
- a rotating element 2 In this is mounted a rotating element 2 on shaft 3 and secured thereto by a key 4.
- the periphcry of saic. rotating element 2 has disposed at intervals buckets 555--e5 shown so arran.
- the buckets. 5555 as shown have opening); 6 which is adapt cl :to' xreceive the (fluid entering the pump intake 10 andin the constructionet the bucket is formed another jopenin-g 8 separated. trom opening 6 by.
- blade 7 extends vertically and forwardly so to form what might be called a leading blade, while at the rear of the bucket is the following blade designated by numeral 9.
- the leading blade 7 is shown to be of a curvature such as would cause the following blade 9 to swing outwardly against the casing 1 when being rotated in a fluid such as oils, gasolines, varnishes, water, and other liquids. This reaction is caused by the impact of the liquid as is known to the art.
- lit is also desirable to discharge the fluid troin the buckets with as little effort as possible. This is done by allowing the entrapped fluid to be discharged, through opening 8 and if the pump is operating at high speed the fluid will pass out this opening by centrifugal force as is known characteristically of this design of centrifugal pumps.
- the pump as shown in Fig. 1 is adapted to rotate counterclockwise the bucket 5 passing over inlet opening 10 exhaust the air partially therefrom until sufficient suction is established. todraw the fluid intothe casmg 1 at this point.
- the fluid coming first into contact with the leading" blade 7 causes a bucket reaction which forces tollowim blade 9 against the casing l tightly enough to insure high vacuum the fluid thus entrapped revolves with the rotating element 2 until it reaches the discharge opening 11 where it is discharged by the difference of relative displacement.
- the :[iuid will pass out of openv 8 in the bucket due to relative shape and them very ineiiicient at low speeds.
- my design of bucket construction I find quite a difierence as the fluid impinging on the leading blade 7 aids considerably at low speeds,
- a stationary casing In a rotary pump, a stationary casing, a rotatable member mounted in the casing and having peripheral pockets therein opening toward the wall of the casing, and a bucket v hinged at one side in each of said pockets,
- each of said buckets comprising a pair of side walls provided intermediate their ends with a curved loading blade extending generallyin the direction toward the center of the rotar'y member and having between said side walls and at the outer ends thereof a follower blade spaced from the loading blade and having its inner surface curved in divergent relation to the curvature of the loading blade, said loading blade providing an intake opening at itsinner side and'an outer opening between the loading and following blades, said following blade adapted to receive impactof fluid in the outer opening and adapted for contact with the peripheral wall of the casing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Sept, 18, 1928. n 1,685,003
' w. w. McELRATH BUCKET FOR ROTARY PUMPS Filed Nov. 25, 1924 2 SheetsSheet -1 Sept. 18, 1928. k 1, 85,003
W. W. MCELRATH 1 BUCKET FOR ROTARY PUMPS Filed Nov. 25, 1924 Z Sheets-Sheet 2 33 13 a Wi 1&2
7 ate high vacuum in rotary pumps and'dis- Patented Fvept. 18, 19253.
I lessees.
FFMEEI.
BUCKET roe BOTABY PUMP-S.
Application fil d November 195%. Serial No. 752,257.
to bucket umpa and The present n construction as applied to rot the like. a r r The primary object of any invention to :provide a bucket construction adapted to crecharge the fluid handled therein with the least possible etl'or't.
Another object of my invention is to provide an iniiproved bucket construction tor rotary pumps which will permit hip h performance over a wide range of operation.
A further object of my invention is to provide a bucket construction for rotary pumps which will tend to follow the contour of the casing reactionary of the fluid while in operation.
A still further object at my invention is to provide a bucket construction for rotary pumps adapted to follow the casino; reactionary of the fluid impact. and discl'iare e said fluid from the bucket by centrifugal torce duringthe cycle 01. operation. I
A much sought object of my invention is to provide a bucket construction for rotary pumps adapted to improve the volumetric etliciency thereof during; operation.
The above and other objects in view, I shall in the following; specification briu out more complete details, and in which.
Fig. 1 represents an end elevated view of the conventional rotary pump with the head removed. and wherein is shown buckets of my construction.
Fig. 2 represents a cross-sectional view of Fig. 1 taken on line 1-1 showing the relation of easing, rotating element, and intake opening; as well as discharge.
3 represents a plan bottom view or" one of the buckets showing openinojs and blade contour. i
Fig. 4. represents cross-sectional projected View or 3 taken on line lllllll.
Referring more particularly tothe draw.- ggs. and i n which case like numerals are used to designate like parts t roughout the specification. and first in which Fig. 1 is shown to be a conventional lcsig'n of r tary pump mounted on a base, the casing); oi which is designated by numeral 1. In this is mounted a rotating element 2 on shaft 3 and secured thereto by a key 4. The periphcry of saic. rotating element 2 has disposed at intervals buckets 555--e5 shown so arran.
{ ed that they are adapted to swing out against the casing during rotation of the shaft 3. In the casing 1 is formed-an inlet opening designated by numeral 10 and dia metrically opposite is a discharge openi deslgnatcd by numeral 1 1.
are more clearly shown in 2.
The buckets. 5555 as shown have opening); 6 which is adapt cl :to' xreceive the (fluid entering the pump intake 10 andin the constructionet the bucket is formed another jopenin-g 8 separated. trom opening 6 by.
interposed blade 7 This construction is best shown by referring more particularly to Figs. 3 and 4. It is clearly noted that the blade 7 extends vertically and forwardly so to form what might be called a leading blade, while at the rear of the bucket is the following blade designated by numeral 9. The leading blade 7 is shown to be of a curvature such as would cause the following blade 9 to swing outwardly against the casing 1 when being rotated in a fluid such as oils, gasolines, varnishes, water, and other liquids. This reaction is caused by the impact of the liquid as is known to the art.
lit is also desirable to discharge the fluid troin the buckets with as little effort as possible. this is done by allowing the entrapped fluid to be discharged, through opening 8 and if the pump is operating at high speed the fluid will pass out this opening by centrifugal force as is known characteristically of this design of centrifugal pumps.
In considering the operation of the conventional design of rotary pump with my invention as disclosed herein may say that the pump as shown in Fig. 1 is adapted to rotate counterclockwise the bucket 5 passing over inlet opening 10 exhaust the air partially therefrom until sufficient suction is established. todraw the fluid intothe casmg 1 at this point. The fluid coming first into contact with the leading" blade 7 causes a bucket reaction which forces tollowim blade 9 against the casing l tightly enough to insure high vacuum the fluid thus entrapped revolves with the rotating element 2 until it reaches the discharge opening 11 where it is discharged by the difference of relative displacement. Should the pump be operating at speed the :[iuid will pass out of openv 8 in the bucket due to relative shape and them very ineiiicient at low speeds. In my design of bucket construction I find quite a difierence as the fluid impinging on the leading blade 7 aids considerably at low speeds,
various changes; and operating conditions may be employed. and limitation is only made by the spirit of the appended claim.
a What I claim and desire to secure by Letters Patent, is: p r
In a rotary pump, a stationary casing, a rotatable member mounted in the casing and having peripheral pockets therein opening toward the wall of the casing, and a bucket v hinged at one side in each of said pockets,
each of said buckets comprising a pair of side walls provided intermediate their ends with a curved loading blade extending generallyin the direction toward the center of the rotar'y member and having between said side walls and at the outer ends thereof a follower blade spaced from the loading blade and having its inner surface curved in divergent relation to the curvature of the loading blade, said loading blade providing an intake opening at itsinner side and'an outer opening between the loading and following blades, said following blade adapted to receive impactof fluid in the outer opening and adapted for contact with the peripheral wall of the casing. In testimony whereof I afli my signature.
WILLIAM MGELRATH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US752257A US1685003A (en) | 1924-11-25 | 1924-11-25 | Bucket for rotary pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US752257A US1685003A (en) | 1924-11-25 | 1924-11-25 | Bucket for rotary pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
US1685003A true US1685003A (en) | 1928-09-18 |
Family
ID=25025553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US752257A Expired - Lifetime US1685003A (en) | 1924-11-25 | 1924-11-25 | Bucket for rotary pumps |
Country Status (1)
Country | Link |
---|---|
US (1) | US1685003A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4201526A (en) * | 1976-12-06 | 1980-05-06 | Eugenius Brochstein | Pivoted blade between rotor and stator having arcuate sections |
-
1924
- 1924-11-25 US US752257A patent/US1685003A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4201526A (en) * | 1976-12-06 | 1980-05-06 | Eugenius Brochstein | Pivoted blade between rotor and stator having arcuate sections |
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