JPS61190184A - Screw rotor of screw compressor - Google Patents

Screw rotor of screw compressor

Info

Publication number
JPS61190184A
JPS61190184A JP3082185A JP3082185A JPS61190184A JP S61190184 A JPS61190184 A JP S61190184A JP 3082185 A JP3082185 A JP 3082185A JP 3082185 A JP3082185 A JP 3082185A JP S61190184 A JPS61190184 A JP S61190184A
Authority
JP
Japan
Prior art keywords
tooth
rotors
gap
time
interference
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.)
Withdrawn
Application number
JP3082185A
Other languages
Japanese (ja)
Other versions
JPS6254998B2 (en
Inventor
Kiyotada Mitsuyoshi
Noboru Tsuboi
Kunihiko Nishitani
Kazuo Kubo
Seiji Yoshimura
Original Assignee
Kobe Steel Ltd
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 Kobe Steel Ltd filed Critical Kobe Steel Ltd
Priority to JP3082185A priority Critical patent/JPS6254998B2/ja
Publication of JPS61190184A publication Critical patent/JPS61190184A/en
Publication of JPS6254998B2 publication Critical patent/JPS6254998B2/ja
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08Rotary-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
    • F04C18/082Details specially related to intermeshing engagement type pumps
    • F04C18/084Toothed wheels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/08Rotary-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
    • F04C18/12Rotary-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
    • F04C18/14Rotary-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
    • F04C18/16Rotary-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

Abstract

PURPOSE:To form an ideal seal line on the sides of both rotors at the time of operation and improve compression efficiency by obtaining a tooth form including a quantity of interference caused by the thermal expansion of both female and male rotors at the time of operation and determining the tooth forms of said both rotors at the normal temperature. CONSTITUTION:Female and male rotors F, M which are arranged in such a way that the gap between tooth surfaces are zero at the normal temperature, are assumed, while the quantity of interference epsilon1-epsilon7 at each tooth form point in the axial plane of rotation of both rotors F, M caused by thermal expansion at the time of operation, are obtained. And, the tooth form of the rotor F at the normal temperature as shown by the solid line is corrected to be a tooth form as shown by the broken line so as to absorb the quantity of interference. Also, the quantity of interference epsilon1-epsilon7 includes the actual quantity of interference plus a gap for safety and a gap for coating, between tooth surfaces as mentioned below, i.e., when obtaining the correction of the female rotor F, it is necessary to give consideration to a gap for safety between tooth surfaces of rotors at the time of operation and a gap for coating. Thereby, an ideal seal line can be formed between both rotors F, M at the time of operation, improving compression efficiency.
JP3082185A 1985-02-18 1985-02-18 Expired JPS6254998B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3082185A JPS6254998B2 (en) 1985-02-18 1985-02-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3082185A JPS6254998B2 (en) 1985-02-18 1985-02-18

Publications (2)

Publication Number Publication Date
JPS61190184A true JPS61190184A (en) 1986-08-23
JPS6254998B2 JPS6254998B2 (en) 1987-11-17

Family

ID=12314366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3082185A Expired JPS6254998B2 (en) 1985-02-18 1985-02-18

Country Status (1)

Country Link
JP (1) JPS6254998B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03189392A (en) * 1989-12-18 1991-08-19 Hitachi Ltd Oilless type screw machine
US5401149A (en) * 1992-09-11 1995-03-28 Hitachi, Ltd. Package-type screw compressor having coated rotors
US6986652B2 (en) 1999-11-17 2006-01-17 Carrier Corporation Screw machine
WO2018054858A1 (en) * 2016-09-21 2018-03-29 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Assembly of screws for a screw compressor for a utility vehicle

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03189392A (en) * 1989-12-18 1991-08-19 Hitachi Ltd Oilless type screw machine
US5401149A (en) * 1992-09-11 1995-03-28 Hitachi, Ltd. Package-type screw compressor having coated rotors
US5613843A (en) * 1992-09-11 1997-03-25 Hitachi, Ltd. Package-type screw compressor
US6986652B2 (en) 1999-11-17 2006-01-17 Carrier Corporation Screw machine
US6988877B2 (en) 1999-11-17 2006-01-24 Carrier Corporation Screw machine
US7153111B2 (en) 1999-11-17 2006-12-26 Carrier Corporation Screw machine
WO2018054858A1 (en) * 2016-09-21 2018-03-29 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Assembly of screws for a screw compressor for a utility vehicle
CN109790751A (en) * 2016-09-21 2019-05-21 克诺尔商用车制动系统有限公司 The screw arbor assembly of screw compressor for commercial vehicle

Also Published As

Publication number Publication date
JPS6254998B2 (en) 1987-11-17

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees