[go: up one dir, main page]

GB1186258A - Hydraulically Operated Diaphragm Pumps with Delivery Flow Control. - Google Patents

Hydraulically Operated Diaphragm Pumps with Delivery Flow Control.

Info

Publication number
GB1186258A
GB1186258A GB44767/67A GB4476767A GB1186258A GB 1186258 A GB1186258 A GB 1186258A GB 44767/67 A GB44767/67 A GB 44767/67A GB 4476767 A GB4476767 A GB 4476767A GB 1186258 A GB1186258 A GB 1186258A
Authority
GB
United Kingdom
Prior art keywords
valve
pump
pulse
contact
delivery
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
Application number
GB44767/67A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lewa Herbert Ott GmbH and Co KG
Original Assignee
Lewa Herbert Ott GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Lewa Herbert Ott GmbH and Co KG filed Critical Lewa Herbert Ott GmbH and Co KG
Publication of GB1186258A publication Critical patent/GB1186258A/en
Expired legal-status Critical Current

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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/007—Installations or systems with two or more pumps or pump cylinders, wherein the flow-path through the stages can be changed, e.g. from series to parallel
    • 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
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
    • 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
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

1,186,258. Reciprocating pumps. LEWA HERBERT OTT. Oct. 2, 1967 [Oct. 4, 1966], No. 44767/67. Heading F1A. In a hydraulically actuated pump comprising a pumping chamber 10 separated from an actuating chamber 7 by a diaphragm, an actuating piston 2 is reciprocated in chamber 7, and the delivery volume of the pump is controlled by opening a valve 9 in a by-pass 8 between the actuating chamber 7 and the reservoir 3, by holding a make-up valve 5 or a pressure-relief valve 6 open, or by closing a valve (11, Fig.3 not shown), in the pump delivery line so that the pressurerelief valve opens during the pressure stroke of piston 2. The valves are electromagnetically actuated in response to pulses from a flowmeter in a line supplied by the pump. Two sets of contacts are operated by the pump drive at the bottom dead centre position of piston 2 and at a point towards the end of the suction stroke, respectively. The contacts act to connect a pulse store, fed by a pulse former operated by the flowmeter, to a pulse generator and thyristor-controlled bridge network, which control the electromagnet of the valve for controlling the pump delivery Fig. 5 (not shown). If there is a pulse in the pulse store when the contact at bottom dead centre is made, valves 9, 5 or 6 is closed or valve (11) is opened for the pump to operate. If there is not a pulse in the store when the contact at bottom dead centre is made, i. e. no pulse has come from the flowmeter during the time interval between the contact towards the end of the suction stroke and the contact at bottom dead centre, then valve 9, 5 or 6 is opened or valve (11) closed, to prevent the next delivery stroke. Since the second contact occurs towards the end of the suction stroke of the piston 2, the pump always carries out a suction stroke following its delivery stroke. A plurality of pumps may be connected in parallel with a common drive, and may be controlled individually. In Fig. 6 (not shown), six pumps are connected in parallel and two of them are controlled individually by flowmeters in different streams.
GB44767/67A 1966-10-04 1967-10-02 Hydraulically Operated Diaphragm Pumps with Delivery Flow Control. Expired GB1186258A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0054726 1966-10-04

Publications (1)

Publication Number Publication Date
GB1186258A true GB1186258A (en) 1970-04-02

Family

ID=7276386

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44767/67A Expired GB1186258A (en) 1966-10-04 1967-10-02 Hydraulically Operated Diaphragm Pumps with Delivery Flow Control.

Country Status (2)

Country Link
DE (1) DE1653512A1 (en)
GB (1) GB1186258A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031418A2 (en) * 2006-09-16 2008-03-20 Thomas Magnete Gmbh Diaphragm pump
WO2010084002A3 (en) * 2009-01-22 2011-04-14 Robert Bosch Gmbh Hydraulic machine assembly
WO2014023312A1 (en) * 2012-07-13 2014-02-13 Hove A/S Diaphragm pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3708868A1 (en) * 1987-03-18 1988-10-06 Ott Kg Lewa METHOD AND DEVICE FOR STARTING A HYDRAULIC DIAPHRAGM PUMP AGAINST LOAD

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008031418A2 (en) * 2006-09-16 2008-03-20 Thomas Magnete Gmbh Diaphragm pump
WO2008031418A3 (en) * 2006-09-16 2008-06-12 Thomas Magnete Gmbh Diaphragm pump
WO2010084002A3 (en) * 2009-01-22 2011-04-14 Robert Bosch Gmbh Hydraulic machine assembly
WO2014023312A1 (en) * 2012-07-13 2014-02-13 Hove A/S Diaphragm pump

Also Published As

Publication number Publication date
DE1653512A1 (en) 1970-08-27

Similar Documents

Publication Publication Date Title
GB1420424A (en) High pressure fluid intensifier and method
GB1144142A (en) Reciprocating fuel pump, particularly for oil-fired furnaces
GB1145752A (en) Liquid pumping apparatus
GB1470506A (en) Fuel injection pumping apparatus
GB1306422A (en) Fuel injection pumps for internal combustion engines
GB1216094A (en) Liquid fuel injection pumping apparatus
GB1186258A (en) Hydraulically Operated Diaphragm Pumps with Delivery Flow Control.
GB1077303A (en) Electric pump
GB1364561A (en) Fuel injection devices
GB1093563A (en) Improved fuel injection pump
GB1368689A (en) Pressure-regulated diaphragm pumps
ES352423A1 (en) Liquid fuel pumping apparatus
GB1184546A (en) Electro-Magnetic Devices for Controlling Flow of Fluid.
GB1368534A (en) Fuel injection pumps
GB1218092A (en) Improvements in or relating to reciprocating pumps
ES345252A1 (en) Liquid fuel pumping apparatus
GB1515846A (en) Distributor type fuel injection pumping apparatus
GB1219765A (en) Liquid fuel injection pumping apparatus
GB1425892A (en) Electromagnetically actuable valves
GB1340952A (en) Hydraulic stepping motor
GB1262075A (en) Systems for operating internal combustion engine valves by means of fluid pressure
GB1211346A (en) Liquid fuel injection pumps
GB1474525A (en)
GB1331977A (en) Hydraulic pulse generator
GB1460586A (en) Liquid fuel injection pumping apparatus

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees