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
  • F04D19/00—Axial-flow pumps
  • F04D19/02—Multi-stage pumps
  • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
  • F04D19/046—Combinations of two or more different types of 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
  • F04D19/00—Axial-flow pumps
  • F04D19/02—Multi-stage pumps
  • F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
  • F04D19/044—Holweck-type 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
  • F04D29/08—Sealings
  • F04D29/10—Shaft sealings
  • F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16J—PISTONS; CYLINDERS; SEALINGS
  • F16J15/00—Sealings
  • F16J15/16—Sealings between relatively-moving surfaces
  • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
  • F16J15/406—Sealings between relatively-moving surfaces by means of fluid by at least one pump

Definitions

• the large vacuum reservoir contains a total of 15 seconds, in the absence of waste, there is a separate connection with the shaft.
• friends and consummate friends turn on the other hand and turn on the other hand and go through the process of transportation of blood and blood.
• the newly installed zadacha was resolved by the fact that in a large cooler, it is empty, the inside is warm, it is installed inside the tank.
• the vacuum chamber is equipped with a standby unit I / fig. 1 / * inside, a large open 2 was installed; on the other hand, there were 3 channels installed; The state of the I source of gas is 5 and the gas source is 6 and the gas source is in danger of an interconnection between the two.
• the gas pump is set to step 7 with the shoulder blades.
• the personal laptop wheels of 9 and the corresponding portable disks 8 are different, both in the case of other commercial vehicles.
• the chambers of the accelerated gas outlet of the gas are processed by the internal cylinder of the 10th compartment of the 6th unit of the 6th stage of the motorized vehicle - 6 - na ⁇ uzhn ⁇ y tsiliyad ⁇ iches ⁇ y ⁇ ve ⁇ ya ⁇ s ⁇ yu 12 ⁇ a 2.
• ⁇ 2 us ⁇ aya ⁇ vleya XDR w 14 and w za ⁇ e ⁇ len yaem with ⁇ m ⁇ schyu viya ⁇ a 15.
• ⁇ al 14 us ⁇ aya ⁇ vlen in dvu ⁇ ae ⁇ s ⁇ a- ⁇ iches ⁇ i ⁇ ⁇ dshi ⁇ yai ⁇ a ⁇ 16 and T7, imeyuschi ⁇ s ⁇ ve ⁇ s ⁇ venya ⁇ ⁇ ltsevye ⁇ ch ⁇ i 18 and 19, with s ⁇ bschenyaye ⁇ ashshmi / w che ⁇ ezhe Re ⁇ azayay / sis ⁇ emy ⁇ dachi and ⁇ as ⁇ edele- Air Force Aircraft 16 and 1.
• a width of 49 in between the adjacent grooves 48 is equally wide in 48.
• Additional kayals 36 are designed to accommodate 50 (Fig. 2) or 51 (Fig. 3),
• the depth of the - - groove 51 gradually decreases at a rate of gas suction at a gas injection rate of 0.1 to 0.2 mm.
• the width of the groove 51 and the width of the rib 53 are equal to 2 mm, the same as in the variant shown in figure 2.
• the length of the section 35 of the external part of the shaft 14 is 0.5 to 0.8, the diameter of the shaft is 14, and the length of the section 37 of the inside of the shaft 2 is 2 times 2 of 2 -g.
• the vacuum vacuum pump operates the following way.
• unit 5 ( ⁇ ) of the unit I is connected to a live camera (not shown on the drawing) with a compliant process.
• Unit 33 connects to the pipe (not shown) with a gas pumped off.
• Yulos 47, zazory 46 and 45 fall into the optional channels 36 dynamic compaction. Then, after a gap of 38 - to the main channels 34 dynamic compaction, the exhaust gas pressure rises to exhaust pressure until the exhaust gas rises. Further pumped gas through channels 39.40
• extension 16 gap 41 and section 43 of bus 42 and channel 44 of channel 20 will exit into the atmosphere.
• the dynamic compaction takes the role of a vacuum pump, ensuring an increase in the pressure for the automatic, and this is not impermeable.
• the pressure of the pumped gas flow through the pressure through additional channels 36 is dynamically accelerated is less than 5 times, it is less

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Non-Positive Displacement Air Blowers (AREA)
• Structures Of Non-Positive Displacement Pumps (AREA)
• Junction Field-Effect Transistors (AREA)

Priority Applications (7)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21617228

Family Applications (1)

Country Status (7)

Families Citing this family (2)

Citations (4)

Family Cites Families (4)

• 1988
  • 1988-03-30 CH CH4341/89A patent/CH676378A5/de not_active IP Right Cessation
  • 1988-03-30 WO PCT/SU1988/000076 patent/WO1989009341A1/ru active Application Filing
  • 1988-03-30 DE DE883891280T patent/DE3891280T1/de not_active Withdrawn
  • 1988-03-30 JP JP63507664A patent/JPH02503703A/ja active Pending
  • 1988-03-30 FI FI895719A patent/FI895719A0/fi not_active Application Discontinuation
  • 1988-06-07 FR FR888807570A patent/FR2632361B1/fr not_active Expired - Fee Related
• 1989
  • 1989-11-16 GB GB8926400A patent/GB2230562B/en not_active Expired - Lifetime

Patent Citations (4)

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