JPS5525578A - Screw rotor - Google Patents

Screw rotor

Info

Publication number
JPS5525578A
JPS5525578A JP9878878A JP9878878A JPS5525578A JP S5525578 A JPS5525578 A JP S5525578A JP 9878878 A JP9878878 A JP 9878878A JP 9878878 A JP9878878 A JP 9878878A JP S5525578 A JPS5525578 A JP S5525578A
Authority
JP
Japan
Prior art keywords
point
involute
gear
rotor
gear shape
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.)
Pending
Application number
JP9878878A
Other languages
Japanese (ja)
Inventor
Shuichi Arato
Seiichi Iida
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP9878878A priority Critical patent/JPS5525578A/en
Priority to GB7924759A priority patent/GB2052938B/en
Priority to FR7918368A priority patent/FR2431244B1/en
Priority to CA331,890A priority patent/CA1106192A/en
Priority to DE2928843A priority patent/DE2928843C2/en
Priority to US06/058,380 priority patent/US4310999A/en
Priority to DE2954401A priority patent/DE2954401C2/en
Publication of JPS5525578A publication Critical patent/JPS5525578A/en
Pending legal-status Critical Current

Links

Landscapes

  • Rotary-Type Compressors (AREA)
  • Rotary Pumps (AREA)

Abstract

PURPOSE: To form screw rotor of high accuracy and high productivity by forming into an involute gear shape the area where the intersecting point of sectional gear shape vertical to the rotary axle of rotor and its pitch circle is centered.
CONSTITUTION: The involute basal point f is taken on a straight line gear shape connecting the point a on the pitch circli 1' of the female rotor 3' with the point b on a straight line extending toward the axial center O of the female rotor 3' and an involute gear shape passing through the point a toward the point g on the circle of a radius r1 leading to the gear tip 5' of the female rotor 3' is formed. And, the involute basal point F is taken and involute gear from the point f to the point g is designed to gear with the involute gear from the point F to the point G.
COPYRIGHT: (C)1980,JPO&Japio
JP9878878A 1978-07-17 1978-08-14 Screw rotor Pending JPS5525578A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP9878878A JPS5525578A (en) 1978-08-14 1978-08-14 Screw rotor
GB7924759A GB2052938B (en) 1978-08-14 1979-07-16 Blades for horticultural or agricultural cutting machines
FR7918368A FR2431244B1 (en) 1978-08-14 1979-07-16 ROTATING BLADE FOR PRUNING OR CUTTING MACHINE
CA331,890A CA1106192A (en) 1978-07-19 1979-07-16 Rotary cutting blade
DE2928843A DE2928843C2 (en) 1978-08-14 1979-07-17 Rotary knife for a mower
US06/058,380 US4310999A (en) 1978-07-17 1979-07-17 Rotary blade for pruning machines
DE2954401A DE2954401C2 (en) 1978-08-14 1979-07-17 Rotary knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9878878A JPS5525578A (en) 1978-08-14 1978-08-14 Screw rotor

Publications (1)

Publication Number Publication Date
JPS5525578A true JPS5525578A (en) 1980-02-23

Family

ID=14229101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9878878A Pending JPS5525578A (en) 1978-07-17 1978-08-14 Screw rotor

Country Status (1)

Country Link
JP (1) JPS5525578A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402091B (en) * 1981-08-25 1997-01-27 Ingersoll Rand Co SUB-ROTOR FOR A SCREW MACHINE, ESPECIALLY A SCREW COMPRESSOR
JP2009243325A (en) * 2008-03-31 2009-10-22 Hitachi Industrial Equipment Systems Co Ltd Screw compressor
CN105134592A (en) * 2015-09-08 2015-12-09 无锡压缩机股份有限公司 Design method of double-screw end surface molded line
JP2017519153A (en) * 2014-06-26 2017-07-13 スベンスカ・ロツタア・マスキナア・アクチボラグ A pair of cooperative screw rotors

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967211A (en) * 1972-07-14 1974-06-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4967211A (en) * 1972-07-14 1974-06-29

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402091B (en) * 1981-08-25 1997-01-27 Ingersoll Rand Co SUB-ROTOR FOR A SCREW MACHINE, ESPECIALLY A SCREW COMPRESSOR
JP2009243325A (en) * 2008-03-31 2009-10-22 Hitachi Industrial Equipment Systems Co Ltd Screw compressor
JP2017519153A (en) * 2014-06-26 2017-07-13 スベンスカ・ロツタア・マスキナア・アクチボラグ A pair of cooperative screw rotors
US10451065B2 (en) 2014-06-26 2019-10-22 Svenska Rotor Maskiner Ab Pair of co-operating screw rotors
CN105134592A (en) * 2015-09-08 2015-12-09 无锡压缩机股份有限公司 Design method of double-screw end surface molded line

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