US3570722A - Pump unit - Google Patents

Pump unit Download PDF

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Publication number
US3570722A
US3570722A US818599A US3570722DA US3570722A US 3570722 A US3570722 A US 3570722A US 818599 A US818599 A US 818599A US 3570722D A US3570722D A US 3570722DA US 3570722 A US3570722 A US 3570722A
Authority
US
United States
Prior art keywords
cover
tank
pump
fluid
unit
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
Application number
US818599A
Other languages
English (en)
Inventor
Torsten C O Montelius
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.)
Imo Industri AB
Original Assignee
Imo Industri AB
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 Imo Industri AB filed Critical Imo Industri AB
Application granted granted Critical
Publication of US3570722A publication Critical patent/US3570722A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • F04D29/606—Mounting in cavities

Definitions

  • the present invention relates to a pump unit having a pump and associated motor immersed in liquid.
  • the object of the present invention is to provide an arrangement whereby a pump unit can be mounted in an oil tank in such a manner that the aforementioned difficulties are circumvented. Damping of vibrations in accordance with the invention can be adhieved in a very. simple manner, and installation of dismantling of the unit is rendered much simple.
  • the pump unit is suspended beneath the cover plate of the tank without being connected to the main portion of the tank (walls and bottoms) and vibration damping means are arranged between the pump unit and the main portion of the tank.
  • the pump unit can thus .be suspended from attachment points mounted to the cover and the vibration damping means positioned between the attachments and the cover, wherewith the cover can be rigidly connected to the tank in general. It is also possible, however, to suspend the unit rigidly beneath the cover and arrange vibration damping means between said cover and the main portion of the tank. Whichever system is elected the vibration damping means are situated above the level of the oil and are thus not subject to attack therefrom. Because the unit is secured to the cover and not connected with the tank in general, it can easily be removed by lifting the cover from the tank, whereupon the unit is removed together with the cover.
  • a control valve to an inlet of which a line extends from the outlet of the pump passes. Furthermore, lines pass from other openings at the valve to the hydraulic operating devices in the system and a return line which opens into the tank for return of oil thereto.
  • This valve can to advantage be placed on the tank cover, suitably with a vibration damping means positioned therebetween.
  • the line may consist wholly or partially of a hose. in a suitable embodiment, a substantially vertical hose is attached from the pump outlet through an opening in the lid to a elbow tube, from which an essentially horizontal hose extends to the valve. If the valve is attached to the cover with vibration damping means, however, a rigid line can also be use.
  • EEG. l shows an oil tank in longitudinal section provided with a unit mounted therein in accordance with the invention
  • PEG. 2 shows a section through the line li-ll in FIG. 1;
  • FZGS. 3 and 4 show in a corresponding manner another embodiment of the invention.
  • FIGS. 1 and 2 there is shown an oil tank 1, the greater portion of which is filled with oil during operation.
  • the tank is provided with a cover plate 2 which can be fastened by means of screws to a flange 3 on the upper surface of the tank.
  • a unit consiting of a pump 4 and a motor 5 is arranged in the tank so that during operation at least the larger portion of the unit is immersed in the oil.
  • the construction and design of the pump and motor are not within the purview of the present invention and will not be described in detail.
  • the pump for instance, may be an [mo-pump. of well-known design and the motor a known type of electric motor, which are combined to form a unit.
  • the unit 4, 5 is suspended by means of three steel wire ropes 6, 7, 8, which are attached to suitable attachment means on the unit and to the attachments in the cover 2.
  • the rope 6 is placed as a loop through two eyes 9 attached in the housing of the pump 4 and an eye 10 attached on the cover.
  • the loop can thus be formed by drawing an appropriately long rope through the eyes and the ends of the loop can then be connected with a rope lock means or the like.
  • the two ropes 7 and 8 are in a similar manner placed as loops through eyes 11, 12, secured to the cover, and around members on both sides of the motor which form part of the feet upon which the motor is normally mounted in the inverted position to that shown.
  • the eye 10 is formed at the lower end of a bolt 13 which extends up through a hole 14 in the cover 2.
  • the upper end of the cover is provided with nuts 15 which abut the upper surface of a conical, cup-shaped rubber vibration damping means 16, which is fixed in the cover around the hole 14.
  • the eyes 11 and 12 are formed on bolts 17, 18 which are connected in the same way with vibration damping means of which only one, 19, is shown in the drawing.
  • the outlet of the pump 4 is shown at 20. Extending from the outlet is a pressure hose 21, extending up through an opening 22 in the cover 2 to a metal elbow pipe 23, from which a short hose 24 extends to an inlet at a control valve 25, from which lines (not shown) depart to the hydraulic operating devices.
  • the valves 25 is attached to the cover 2 with a resilient support 26 therebetween.
  • Areturn line 27 passes from the valve to a difi'usor 28 in the oil tank.
  • the hoses 21, 24 serve to prevent transmission of vibrations from the unit to the valve 25. If the resilient support 26 alone is sufficient to dampen vibration, the hoses can be replaced with rigid conduit.
  • the unit (the motor 30 and pump 31) is rigidly connected with the cover 32, since the motor is attached to the under side of a plate 34, which is welded to brackets 35, which in turn are welded to the cover.
  • the cover is fixed to the tank 36 with rubber vibration damping means 37 inserted therebetween.
  • the pump outlet is connected with the control valve 33 by means of a conduit 39 drawn through the cover and attached thereto and carrying valve 33, which is attached to the cover by means of the bracket 40.
  • connection between the unit and valve is rigid, flexible connections should be provided in the conduits departing from the valve to the hydraulic operating devices.
  • a pump unit comprising a fluid tank adapted to be filled with hydraulic fluid to a predetermined fluid level, a detachable cover for said tank, suspending members attached at spaced points to said cover by means of vibration dampening members, a pump and motor assembly suspended in said fluid tank noramlly below said fluid level only by means of said suspending members, and a valve unit mounted on said cover and having a fluid inlet operatively connected to a fluid outlet of the pump by means including a conduit extending through an opening in said cover.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Vibration Prevention Devices (AREA)
US818599A 1968-05-08 1969-04-23 Pump unit Expired - Lifetime US3570722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE622968 1968-05-08

Publications (1)

Publication Number Publication Date
US3570722A true US3570722A (en) 1971-03-16

Family

ID=20268181

Family Applications (1)

Application Number Title Priority Date Filing Date
US818599A Expired - Lifetime US3570722A (en) 1968-05-08 1969-04-23 Pump unit

Country Status (6)

Country Link
US (1) US3570722A (enrdf_load_stackoverflow)
CH (1) CH499727A (enrdf_load_stackoverflow)
DE (1) DE1900409B2 (enrdf_load_stackoverflow)
FR (1) FR2008088A1 (enrdf_load_stackoverflow)
GB (1) GB1227662A (enrdf_load_stackoverflow)
PL (1) PL69895B1 (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710434A1 (de) * 2005-04-08 2006-10-11 HAWE Hydraulik GmbH & Co. KG Kompaktpumpen-Baugruppe und Hydroaggregat
US20150375966A1 (en) * 2014-06-30 2015-12-31 Thyssenkrupp Elevator Corporation Noise Abatement for Elevator Submersible Power Units
CN114199486A (zh) * 2021-12-02 2022-03-18 大连理工大学 一种滑油箱-安装结构的振动性能模拟试验装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4337131A1 (de) * 1993-02-02 1994-09-08 Rexroth Mannesmann Gmbh Hydraulikaggregat
DE19612582A1 (de) * 1996-03-29 1997-10-02 Miag Fahrzeugbau Gmbh Antriebseinheit für ein Fahrzeug

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2139370A (en) * 1937-04-23 1938-12-06 Gen Motors Corp Electric fuel pump
US2319934A (en) * 1939-08-23 1943-05-25 Carter Carburetor Corp Electric fuel pump
US3136259A (en) * 1961-11-07 1964-06-09 Mowid Anstalt Sump pump plant
US3172572A (en) * 1963-02-07 1965-03-09 Red Jacket Mfg Co Header construction for underground storage tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2139370A (en) * 1937-04-23 1938-12-06 Gen Motors Corp Electric fuel pump
US2319934A (en) * 1939-08-23 1943-05-25 Carter Carburetor Corp Electric fuel pump
US3136259A (en) * 1961-11-07 1964-06-09 Mowid Anstalt Sump pump plant
US3172572A (en) * 1963-02-07 1965-03-09 Red Jacket Mfg Co Header construction for underground storage tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1710434A1 (de) * 2005-04-08 2006-10-11 HAWE Hydraulik GmbH & Co. KG Kompaktpumpen-Baugruppe und Hydroaggregat
US20150375966A1 (en) * 2014-06-30 2015-12-31 Thyssenkrupp Elevator Corporation Noise Abatement for Elevator Submersible Power Units
CN114199486A (zh) * 2021-12-02 2022-03-18 大连理工大学 一种滑油箱-安装结构的振动性能模拟试验装置
CN114199486B (zh) * 2021-12-02 2022-08-19 大连理工大学 一种滑油箱-安装结构的振动性能模拟试验装置

Also Published As

Publication number Publication date
FR2008088A1 (enrdf_load_stackoverflow) 1970-01-16
DE1900409B2 (de) 1977-01-13
GB1227662A (enrdf_load_stackoverflow) 1971-04-07
DE1900409A1 (de) 1969-11-20
CH499727A (de) 1970-11-30
PL69895B1 (enrdf_load_stackoverflow) 1973-10-31

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