JPS6463684A - Scroll blade - Google Patents

Scroll blade

Info

Publication number
JPS6463684A
JPS6463684A JP21912687A JP21912687A JPS6463684A JP S6463684 A JPS6463684 A JP S6463684A JP 21912687 A JP21912687 A JP 21912687A JP 21912687 A JP21912687 A JP 21912687A JP S6463684 A JPS6463684 A JP S6463684A
Authority
JP
Japan
Prior art keywords
scroll
lap
groove
mirror plate
width
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
JP21912687A
Other languages
Japanese (ja)
Inventor
Hitoshi Hattori
Kanji Sakata
Makoto Hayano
Naoya Morozumi
Mitsuo Hatori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP21912687A priority Critical patent/JPS6463684A/en
Publication of JPS6463684A publication Critical patent/JPS6463684A/en
Pending 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
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • 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
    • F04C2230/00—Manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2251/00—Material properties
    • F05C2251/04—Thermal properties
    • F05C2251/042—Expansivity
    • F05C2251/046—Expansivity dissimilar

Landscapes

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

Abstract

PURPOSE:To contrive at enhancing the productivity and the seal effect by setting the width of a scroll lap to be smaller than that of a scroll groove formed in a mirror plate and receiving therein the scroll lap, and by forming the scroll lap from a material having a thermal expansion coefficient which is greater than that of the mirror plate. CONSTITUTION:A scroll blade 6 is formed in such a way that an scroll lap 6b formed in an involute curve shape is fitted in a scroll groove 6c having the same involute curve shape and formed in one surface of mirror plate 6a. In this arrangement, the width H1 of the scroll lap 6b is set to be smaller than the width H2 of the scroll groove 6c. The scroll lap 6b is made of a material, such as engineering plastic or the like, having a thermal expansion coefficient which is greater than that of cast iron or the like from which the mirror plate 6a is formed. With this arrangement, the scroll lap 6b is easily fitted in the scroll groove 6c while the seal effect between the lap 6b and the groove 6c may be enhanced, thereby it is possible to enhance the volumetric efficiency.
JP21912687A 1987-09-03 1987-09-03 Scroll blade Pending JPS6463684A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21912687A JPS6463684A (en) 1987-09-03 1987-09-03 Scroll blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21912687A JPS6463684A (en) 1987-09-03 1987-09-03 Scroll blade

Publications (1)

Publication Number Publication Date
JPS6463684A true JPS6463684A (en) 1989-03-09

Family

ID=16730646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21912687A Pending JPS6463684A (en) 1987-09-03 1987-09-03 Scroll blade

Country Status (1)

Country Link
JP (1) JPS6463684A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11500890B2 (en) 2004-11-10 2022-11-15 Apple Inc. Highlighting icons for search results

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11500890B2 (en) 2004-11-10 2022-11-15 Apple Inc. Highlighting icons for search results

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