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
  • F04D29/18—Rotors
  • F04D29/22—Rotors specially for centrifugal pumps
  • F04D29/2261—Rotors specially for centrifugal pumps with special measures
  • F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point

Definitions

• ⁇ is the rotational frequency of the front shaft (rim)
• ⁇ is the volumetric flow of the pumped fluid, i.e. Productivity (m 3 / s)
• q is the net positive suction flow (m).
• Frequency of the drive shaft increases the size and the weight of the pump, the efficiency is - the quantity of pumps is suction - ⁇
• the limestone has a short circuit, inside of which there is a working shaft mounted on the drive shaft, which is connected to the main shaft. Indicated areas in the section of cylindrical sections are divided into
• the exclusive sowing unit is equipped with a dry appliance for the purpose of liquid recirculation in the third screw (operation of the USA No. 3723019 on March 27, 1973).
• suction ⁇ lese step l ⁇ as ⁇ ey vybi ⁇ ayu ⁇ the purpose ⁇ bes ⁇ echeniya suction vys ⁇ y s ⁇ s ⁇ bn ⁇ s ⁇ i HA s ⁇ sa, and ⁇ ab ⁇ chem ⁇ lese -.
• ⁇ ⁇ yatse vsasyvayuscheg ⁇ ⁇ lesa ⁇ avi ⁇ atsi ⁇ yanye za ⁇ ayachivayu ⁇ sya phenomena.
• P ⁇ sle vsasyvayuscheg ⁇ ⁇ lesa liquid ⁇ s ⁇ , ⁇ luchivshaya yae ⁇ uyu ene ⁇ giyu, ⁇ s ⁇ u ⁇ ae ⁇ in ⁇ se- v ⁇ e ⁇ ab ⁇ chee ⁇ les ⁇ , and ⁇ e s ⁇ zdae ⁇ in ⁇ sya ⁇ vn ⁇ m zadanyay na ⁇ .
• the posed problem is solved in that, in the case of a large jasse, which has a housing, in which there is a radial gap, there is a general reduction in the pressure of the suction shaft.
• B 0 b.- - ⁇ (C ⁇ • ⁇ "4 + 2, ⁇ ) 2 , (2) where: ⁇ ) 0 is a diagonal diameter of the inlet section of the suction wheel;
• FIG. 2 depicts the end-to-end treatment of a portable specialized jasper, a simple cut, is agreed to;
• FIG. 3 depicts the dissolution of the ciliaceae of
• Fig. 4 displays the physical dependencies of changes in the diameter of the housing as a result of the cross-section of the suction wheel, which is not emitted; ⁇ ig.5 iz ⁇ b ⁇ azhae ⁇ g ⁇ a ⁇ iches ⁇ ie zavisim ⁇ s ⁇ i izmeyaeyaiya ⁇ avi ⁇ atsi ⁇ nn ⁇ g ⁇ ⁇ e ⁇ itsieya ⁇ a bys ⁇ tsya ⁇ s ⁇ i nas ⁇ sa ⁇ ⁇ ivetseyan ⁇ g ⁇ ⁇ as ⁇ da ⁇ i dvu ⁇ znacheniya ⁇ angle us ⁇ an ⁇ v ⁇ i l ⁇ as ⁇ ey vsasyvayuscheg ⁇ ⁇ lesa, ⁇ lucheyayaye ⁇ i is ⁇ y ⁇ anii yaas ⁇ sa ⁇ yas ⁇ u ⁇ tsii ⁇ ⁇ ig. ⁇ ,
• the portable pump contains housing I (fig.), which is available in a separate version with a plug for 2 liquid and a view.
• housing I (fig.), which is available in a separate version with a plug for 2 liquid and a view.
• ⁇ ⁇ use I ⁇ azmeschen ⁇ iv ⁇ tsya ⁇ y shaft 4, Ra ⁇ m ⁇ yaa- ⁇ avleyaiyu ⁇ a zhid ⁇ s ⁇ i us ⁇ aya ⁇ vleyay ⁇ sev ⁇ e the suction present ⁇ les ⁇ 5 ⁇ sev ⁇ e ⁇ ab ⁇ chee ⁇ les ⁇ 6 and 7.
• 35 can be used to select the ⁇ coefficient of ⁇ réelle - 12 - sa ⁇ (Fig. ⁇ ) in accordance with the experience of the consumers in accordance with the fig. 4.
• the invention may be used in chemical and inactive processing, melioration and others.
• ⁇ aib ⁇ lee us ⁇ eshnb iz ⁇ b ⁇ e ⁇ eyaie m ⁇ zhe ⁇ by ⁇ is ⁇ lz ⁇ - 25 vaya ⁇ in eyae ⁇ g ⁇ mashin ⁇ s ⁇ eyaii, suts ⁇ s ⁇ eyaii in ae ⁇ - ⁇ smiches ⁇ y ⁇ e ⁇ yai ⁇ e and 'imenya ⁇ : in nas ⁇ sa ⁇ b ⁇ lsh ⁇ y ⁇ izv ⁇ di ⁇ elya ⁇ s ⁇ i, ⁇ ab ⁇ ayuschi ⁇ ⁇ i yaiz ⁇ m na ⁇ e on vsasyvayaii, lib ⁇ in vys ⁇ b ⁇ yay ⁇ yaas ⁇ sa ⁇ .

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=20816403

Family Applications (1)

Country Status (10)

Families Citing this family (3)

Citations (2)

Family Cites Families (6)

• 1979
  • 1979-03-19 SU SU792739411A patent/SU1023138A1/ru active
• 1980
  • 1980-03-07 JP JP55500898A patent/JPS6046276B2/ja not_active Expired
  • 1980-03-07 DE DE3038735T patent/DE3038735C2/de not_active Expired
  • 1980-03-07 WO PCT/SU1980/000042 patent/WO1980002058A1/ru active Application Filing
  • 1980-03-07 GB GB8035247A patent/GB2058923B/en not_active Expired
  • 1980-03-18 CA CA000347916A patent/CA1141232A/en not_active Expired
  • 1980-03-19 FI FI800848A patent/FI67435C/fi not_active IP Right Cessation
  • 1980-03-19 FR FR8006114A patent/FR2452016A1/fr active Granted
  • 1980-11-06 SE SE8007808A patent/SE444351B/sv not_active IP Right Cessation
  • 1980-11-11 DK DK479080A patent/DK479080A/da not_active Application Discontinuation

Patent Citations (2)

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