GB801902A - Improvements in or relating to diaphragm pumps - Google Patents
Improvements in or relating to diaphragm pumpsInfo
- Publication number
- GB801902A GB801902A GB1013/56A GB101356A GB801902A GB 801902 A GB801902 A GB 801902A GB 1013/56 A GB1013/56 A GB 1013/56A GB 101356 A GB101356 A GB 101356A GB 801902 A GB801902 A GB 801902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- piston
- liquid
- transfer chamber
- cylinder
- 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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
- F04B53/162—Adaptations of cylinders
- F04B53/164—Stoffing boxes
-
- 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
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
- F04B43/06—Pumps having fluid drive
- F04B43/067—Pumps having fluid drive the fluid being actuated directly by a piston
-
- 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
- F04B5/00—Machines or pumps with differential-surface pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
801,902. Diaphragm pumps. PLEUGER, F. W. [trading as PLEUGER & CO.]. Jan. 11, 1956 [Jan. 11, 1955], No. 1013/56. Class 102(1). [Also in Group XXVI] Pumping equipment comprises a pair of flexible diaphragms mounted in spaced relation between a pumping chamber and a driving means and having a pressure transfer chamber and a cylinder, filled with liquid, located between the diaphragms, the cylinder being in communication with the transfer chamber in which one diaphragm serves to seal the pumping chamber from the transfer chamber and the other diaphragm serves to seal the driving means from the cylinder. In the embodiment shown the pressure transfer chamber 15 and cylinder, formed as two concentric cylinders 16a and 16b, are sealed from the pumping chamber 12 and driving means 36, 37 by diaphragms 7 and 8a respectively. In operation the connecting rod 36 and drive shaft 37 reciprocate a two part crosshead 34, 34a which causes reciprocation of pistons 17a, 17b in cylinders 16a, 16b. As the piston 17a advances into the transfer chamber 15 the liquid in the chamber raises the diaphragm 7 and forces liquid out of the pumping chamber 12 past the usual non- return valve. As the piston 17a returns to the cylinder 16a the diaphragm 7 moves downwards and liquid is drawn into the pumping chamber. A recess 39 is provided at the bottom of cylinder 16a and liquid from the transfer chamber 15 which leaks past the piston rings 19a is returned to the transfer chamber 15 on the downward stroke of piston 17a through passageway 30a and non-return valve 31a. Liquid leaking past the piston rings 19b collects in recesses 29b and 29a and is forced past non- return valve 41 during the upward movement of the pistons by diaphragm 8a and joins the liquid collecting in recess 39. This leakage of liquid serves to lubricate the pistons 16a, 16b and crosshead member 34a. The lower crosshead member 34 may be lubricated either by grease provided in the bushing 35 or if the driving means in housing 11 operates under oil a lubrication recess 50 may be provided adjacent the lower face of the diaphragm 8a, and as the crosshead reciprocates the diaphragm 8a serves to pump the oil in the direction or the arrows 54, a non-return valve 51 being provided to prevent direct flow to the oil reservoir. A perforated plate 21 preferably provided with a resilient or elastic plastic coating 21a supports the diaphragm 7 when the pump is not in use or during the return stroke of the piston 17a. The diaphragm 7 and plate 21 may be set at an angle to the axis of the pump. In a modification the driving means may be a cam acting directly on the piston or on a ram in contact with the crosshead, the return stroke of the piston being effected by a compression spring in the transfer chamber. In a further modification the lower diaphragm is a complete circular member clamped at its outer end and lying between the ram and the lower piston, in this case the two concentric cylinders and pistons may be replaced by a single cylinder and piston, the piston being hollow.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2853015X | 1955-01-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB801902A true GB801902A (en) | 1958-09-24 |
Family
ID=7999725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1013/56A Expired GB801902A (en) | 1955-01-11 | 1956-01-11 | Improvements in or relating to diaphragm pumps |
Country Status (2)
Country | Link |
---|---|
US (1) | US2853015A (en) |
GB (1) | GB801902A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10344752B2 (en) | 2011-10-25 | 2019-07-09 | Watson-Marlow Ltd. | Peristaltic pump having a leaking tube detecting chamber |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1123616A (en) * | 1964-12-08 | 1968-08-14 | Munster Simms Eng Ltd | Improvements in or relating to diaphragm pumps |
US3468261A (en) * | 1967-01-23 | 1969-09-23 | Altec Ges Fur Allg Landtechnik | Pump |
DE1905838A1 (en) * | 1969-02-06 | 1970-08-20 | Wagner Fa Ing Josef | Electromotive drive of diaphragm pumps |
DE3414006C2 (en) * | 1984-04-13 | 1986-03-06 | Bran & Lübbe GmbH, 2000 Norderstedt | Piston diaphragm pump |
US4798333A (en) * | 1984-05-31 | 1989-01-17 | Luchsinger Pedro W | Portable sprayer with improved combination of piston and diaphragm pump |
KR910004343B1 (en) * | 1984-05-31 | 1991-06-26 | 워츠 룩싱게트 페드로 | Sprayer and diaphragin pump thereof |
JP4942449B2 (en) * | 2006-10-18 | 2012-05-30 | 株式会社コガネイ | Chemical supply device |
JP4547369B2 (en) * | 2006-11-29 | 2010-09-22 | 株式会社コガネイ | Chemical supply device |
SE0900233A1 (en) * | 2009-02-24 | 2010-08-25 | Tetra Laval Holdings & Finance | Diaphragm pump head for a homogenizer |
DE102016114680A1 (en) * | 2016-08-08 | 2018-02-08 | Prominent Gmbh | Device for generating a pulsating hydraulic fluid pressure |
CN107023458B (en) * | 2017-05-22 | 2020-07-28 | 吉效科 | Underground oil-submersible diaphragm pump |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB597106A (en) * | 1945-08-09 | 1948-01-19 | Norman Emile Mcclelland | Improvements in or relating to diaphragm pumps |
US1955383A (en) * | 1932-12-01 | 1934-04-17 | Hermann John Frederick | Injection pump for internal combustion engines |
-
1956
- 1956-01-04 US US557382A patent/US2853015A/en not_active Expired - Lifetime
- 1956-01-11 GB GB1013/56A patent/GB801902A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10344752B2 (en) | 2011-10-25 | 2019-07-09 | Watson-Marlow Ltd. | Peristaltic pump having a leaking tube detecting chamber |
Also Published As
Publication number | Publication date |
---|---|
US2853015A (en) | 1958-09-23 |
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