GB1335045A - Rotary displacement machines - Google Patents

Rotary displacement machines

Info

Publication number
GB1335045A
GB1335045A GB1335045DA GB1335045A GB 1335045 A GB1335045 A GB 1335045A GB 1335045D A GB1335045D A GB 1335045DA GB 1335045 A GB1335045 A GB 1335045A
Authority
GB
United Kingdom
Prior art keywords
rotors
rotor
teeth
discs
compressor
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
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1335045A publication Critical patent/GB1335045A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
    • F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
    • F01C1/123—Rotary-piston machines or engines 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 tooth-like elements, extending generally radially from the rotor body cooperating with recesses in the other rotor, e.g. one tooth

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

1335045 Rotary piston machine A E BROWN 17 Oct 1970 49418/70 Heading F1F A rotary fluid displacement machine useable as a compressor, a vacuum pump or an expansion engine or motor comprises rotors 1, 2 in a casing 5 having intersecting bores 3, 4 provided with a port 21 for inlet when the machine is acting as a compressor and an outlet port 25 in at least one end of the bore 3. The rotors are interconnected by gearing to rotate in timed relation normally 1 : 1 and the casing has coolant passages. The first rotor 1 has an intermediate hub portion 7 and end projecting portions or bands formed by discs 9 bolted and chanelled thereto at 10, 11. A groove 12 is formed in the rotor through the portions and adjacent a tooth 8 projecting from the hub 7. The second rotor 2 has major and minor hubs 13, 15 having a groove 17 adjacent teeth 14, 16 extending therefrom. The teeth 8, 14 and 16 are profiled as described in detail so that there is zero clearance volume, no trapped fluid pockets and no unbroken seal lines as the rotors rotate to effect their various functions. The rotors are balanced by holes 40, 42 and the teeth 14, 16 are lightened by holes 44 while the motor 1 may be provided with notches 32 to provide more flow area tothe ports 25 which in turn are shaped as described in detail to produce different effects and for various uses the grooves in the different sections of the rotors may lead and lag one another. The outer edge E of the rotor 2 is constituted by a brass wear strip 36 which is adjustable relative to the rotor by means of shims and screws 37. Seal grooves 35 or a ductile coating may be provided to reduce the running clearance without causing seizure. In possible modifications the discs and hubs may deviate from circular arcs by having surfaces of compound radii. Two diametrically opposite teeth may be provided on one or both rotors in the former case the two toothed rotor rotating at half the speed of the other.
GB1335045D 1970-10-17 1970-10-17 Rotary displacement machines Expired GB1335045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4941870 1970-10-17

Publications (1)

Publication Number Publication Date
GB1335045A true GB1335045A (en) 1973-10-24

Family

ID=10452281

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1335045D Expired GB1335045A (en) 1970-10-17 1970-10-17 Rotary displacement machines

Country Status (1)

Country Link
GB (1) GB1335045A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478223A1 (en) * 1980-03-17 1981-09-18 Worthington Compressors Inc ROTARY COMPRESSOR
FR2482210A1 (en) * 1980-03-17 1981-11-13 Worthington Compressors Inc Rotary gas-compressor assembly - has pair of cooperating lobed rotors of dissimilar asymmetric configurations and incorporating balancing plugs
JPH02185683A (en) * 1988-10-28 1990-07-20 Boc Group Plc:The Mechanical type pump

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2478223A1 (en) * 1980-03-17 1981-09-18 Worthington Compressors Inc ROTARY COMPRESSOR
FR2482210A1 (en) * 1980-03-17 1981-11-13 Worthington Compressors Inc Rotary gas-compressor assembly - has pair of cooperating lobed rotors of dissimilar asymmetric configurations and incorporating balancing plugs
JPH02185683A (en) * 1988-10-28 1990-07-20 Boc Group Plc:The Mechanical type pump
EP0366347A3 (en) * 1988-10-28 1990-08-16 The Boc Group Plc Improvements in mechanical pumps
US5055017A (en) * 1988-10-28 1991-10-08 The Boc Group Plc Mechanical pumps
JP3029202B2 (en) 1988-10-28 2000-04-04 ザ ビーオーシー グループ ピーエルシー Mechanical pump

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Legal Events

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