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GB421442A - Improvements relating to rotary blowers - Google Patents

Improvements relating to rotary blowers

Info

Publication number
GB421442A
GB421442A GB1367434A GB1367434A GB421442A GB 421442 A GB421442 A GB 421442A GB 1367434 A GB1367434 A GB 1367434A GB 1367434 A GB1367434 A GB 1367434A GB 421442 A GB421442 A GB 421442A
Authority
GB
United Kingdom
Prior art keywords
rotors
housing
lobes
gears
rings
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
GB1367434A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to GB1367434A priority Critical patent/GB421442A/en
Publication of GB421442A publication Critical patent/GB421442A/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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Supercharger (AREA)

Abstract

421,442. Rotary compressors; stuffing-boxes. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(General Motors Corporation; Detroit, Michigan, U.S.A.) May 5, 1934, No. 13674. [Classes 110 (ii) and 122 (v)] A compressor, for super-charging internal-combustion engines or other purposes, comprises two rotors 1, 2, each with at least three lobes 3, in which the lobes are arranged helically along their axes such that the angular displacement of a rotor cross-section from end to end is equal to half the angle subtended between centre lines of two adjacent lobes. Clearances are provided between meshing rotors and the casing walls. The rotors are driven by helical gears 26-29, whose end thrusts balance, at each end of the blower. These gears are secured on bushes 22 by studs 41 and dowel pins, which are held by locking plates 40. The rotors are pinned to stub shafts 9 by cross-pins 12. The housing is bored eccentrically to the centre line of the rotor shafts so as to allow more clearance on the intake side than on the delivery side when the housing has an even temperature throughout. This is stated to correct casing distortion caused by dissimilar temperatures in the two sides. A water jacket 19 is provided. Inlet and outlet ports 16, 17 have widths equal to the distance between shaft centres. Thrust collars 30 carry carbon packing rings 46 which are pressed laterally by steel rings 49 attached to phosphor bronze diaphragms 48 held by stationary rings 47. The rotors and housing are made of materials with different coefficients of expansion. Cast iron may be used for the rotors and aluminium for the housing. Gears 33, 341 and a cam 36 drive a petrol pump. The end cover plate 42 is provided with an air vent 43. The lobes 3 have small drain holes 51.
GB1367434A 1934-05-05 1934-05-05 Improvements relating to rotary blowers Expired GB421442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1367434A GB421442A (en) 1934-05-05 1934-05-05 Improvements relating to rotary blowers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1367434A GB421442A (en) 1934-05-05 1934-05-05 Improvements relating to rotary blowers

Publications (1)

Publication Number Publication Date
GB421442A true GB421442A (en) 1934-12-20

Family

ID=10027349

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1367434A Expired GB421442A (en) 1934-05-05 1934-05-05 Improvements relating to rotary blowers

Country Status (1)

Country Link
GB (1) GB421442A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156096A2 (en) * 1983-12-01 1985-10-02 Atlas Copco Aktiebolag Shaft seal
EP0176269A1 (en) * 1984-09-04 1986-04-02 Eaton Corporation Supercharger carryback pulsation damping means
CN103671109A (en) * 2014-01-14 2014-03-26 淄博景曜真空设备有限公司 Prismatic rod vacuum pump
CN103244427B (en) * 2013-04-27 2016-04-20 西安航空动力控制科技有限公司 Roots pump rotor fixed position locking mechanism
CN109026686A (en) * 2018-09-14 2018-12-18 安徽达来电机有限公司 A kind of roots blower and installation method of quick positioning trilobed wheel
EP3795834A1 (en) * 2019-09-23 2021-03-24 OVG Vacuum Technology (Shanghai) Co., Ltd. Transmission structure of motor connection of roots pump

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156096A2 (en) * 1983-12-01 1985-10-02 Atlas Copco Aktiebolag Shaft seal
EP0156096A3 (en) * 1983-12-01 1986-02-26 Atlas Copco Aktiebolag Shaft seal
EP0176269A1 (en) * 1984-09-04 1986-04-02 Eaton Corporation Supercharger carryback pulsation damping means
CN103244427B (en) * 2013-04-27 2016-04-20 西安航空动力控制科技有限公司 Roots pump rotor fixed position locking mechanism
CN103671109A (en) * 2014-01-14 2014-03-26 淄博景曜真空设备有限公司 Prismatic rod vacuum pump
CN103671109B (en) * 2014-01-14 2015-11-18 淄博景曜真空设备有限公司 A kind of rib bar vacuum pump
CN109026686A (en) * 2018-09-14 2018-12-18 安徽达来电机有限公司 A kind of roots blower and installation method of quick positioning trilobed wheel
EP3795834A1 (en) * 2019-09-23 2021-03-24 OVG Vacuum Technology (Shanghai) Co., Ltd. Transmission structure of motor connection of roots pump

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