IN2015DN01485A - - Google Patents

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Publication number
IN2015DN01485A
IN2015DN01485A IN1485DEN2015A IN2015DN01485A IN 2015DN01485 A IN2015DN01485 A IN 2015DN01485A IN 1485DEN2015 A IN1485DEN2015 A IN 1485DEN2015A IN 2015DN01485 A IN2015DN01485 A IN 2015DN01485A
Authority
IN
India
Prior art keywords
casing
teeth
trochoid
recess
internal gear
Prior art date
Application number
Inventor
Takuya Ishii
Masato Shimoda
Hajime Asada
Kei Hattori
Original Assignee
Ntn Toyo Bearing Co 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 Ntn Toyo Bearing Co Ltd filed Critical Ntn Toyo Bearing Co Ltd
Publication of IN2015DN01485A publication Critical patent/IN2015DN01485A/en

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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps 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
    • 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
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/10—Outer members for co-operation with rotary pistons; Casings
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/102—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member the two members rotating simultaneously around their respective axes
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/005—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of dissimilar working principle
    • 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
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant
    • 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
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/21—Manufacture essentially without removing material by casting
    • 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
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/22—Manufacture essentially without removing material by sintering
    • 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
    • F04C2230/20—Manufacture essentially without removing material
    • F04C2230/23—Manufacture essentially without removing material by permanently joining parts together
    • F04C2230/231—Manufacture essentially without removing material by permanently joining parts together by welding
    • 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
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies
    • 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
    • F05C2253/00—Other material characteristics; Treatment of material
    • F05C2253/20—Resin

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

Provided is an internal gear pump which can be manufactured at low cost with fewer mechanical processing steps and which also has a high safety factor in functioning. This internal gear pump (1) has a trochoid (4) in which an inner rotor (3) having multiple outer teeth is rotatably housed inside of an outer rotor (2) having multiple inner teeth in an eccentric state in which the outer teeth mesh with said inner teeth. Between the inner teeth and the outer teeth in said trochoid are formed an inlet side volume chamber where a liquid is intaken and an outlet side volume chamber where the liquid intaken in the inlet side volume chamber is discharged. The internal gear pump (1) also includes a casing (5) in which a recess (5a) housing the trochoid (4) is formed and a cover (6) which closes the recess (5a) of the casing (5). At least one part of the casing (5) is an injection molded body of a resin composition. There is a groove (5d) in the portion which seals the outer periphery of the recess (5a) of the casing (5) and a seal ring (13) is installed in said groove. In screw hole sections sintered metal bushings (7) are provided integrally during injection molding.
IN1485DEN2015 2012-08-08 2013-07-26 IN2015DN01485A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012175875 2012-08-08
JP2012240171A JP6084435B2 (en) 2012-08-08 2012-10-31 Internal gear pump
PCT/JP2013/070288 WO2014024701A1 (en) 2012-08-08 2013-07-26 Internal gear pump

Publications (1)

Publication Number Publication Date
IN2015DN01485A true IN2015DN01485A (en) 2015-07-03

Family

ID=50067934

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1485DEN2015 IN2015DN01485A (en) 2012-08-08 2013-07-26

Country Status (6)

Country Link
US (1) US9810215B2 (en)
EP (1) EP2896833B1 (en)
JP (1) JP6084435B2 (en)
CN (1) CN104520586A (en)
IN (1) IN2015DN01485A (en)
WO (1) WO2014024701A1 (en)

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US9368301B2 (en) 2014-01-20 2016-06-14 Eaton Corporation Vacuum interrupter with arc-resistant center shield
JP6329411B2 (en) * 2014-03-25 2018-05-23 Ntn株式会社 Internal gear pump
JP2016035299A (en) * 2014-08-04 2016-03-17 Ckd株式会社 Shock absorber
JP2017066975A (en) * 2015-09-30 2017-04-06 Ntn株式会社 Internal gear pump
DE112016004484T5 (en) 2015-09-30 2018-06-14 Ntn Corporation INTERNAL GEAR PUMP
CN106015901B (en) * 2016-08-03 2018-07-10 湖南机油泵股份有限公司 A kind of rotor-type oil pump of energy oil suction in time
GB201614327D0 (en) 2016-08-22 2016-10-05 Rolls-Royce Controls And Data Services Ltd Gear pump bearing
GB201614326D0 (en) * 2016-08-22 2016-10-05 Rolls-Royce Controls And Data Services Ltd Gear pump bearing
US10596503B1 (en) 2016-12-19 2020-03-24 Technetics Group Llc Metal seal with an integral filter
CN110114576A (en) * 2016-12-22 2019-08-09 Ntn株式会社 Crescent gear pump
WO2019107537A1 (en) 2017-11-30 2019-06-06 Ntn株式会社 Internal gear pump
US20210180591A1 (en) * 2017-11-30 2021-06-17 Ntn Corporation Internal gear pump
US11027404B2 (en) * 2018-07-19 2021-06-08 Milwaukee Electric Tool Corporation Lubricant-impregnated bushing for impact tool
JP7167837B2 (en) * 2018-08-31 2022-11-09 豊田合成株式会社 oil pump
US11448211B2 (en) 2018-08-31 2022-09-20 Toyoda Gosei Co., Ltd. Oil pump including gap between flange portion of tubular core and flange-opposing portion of resin housing
JP7144652B2 (en) 2019-03-26 2022-09-30 豊田合成株式会社 oil pump
JP7188342B2 (en) 2019-09-27 2022-12-13 豊田合成株式会社 gear pump
CN111520320B (en) * 2020-04-30 2022-02-15 中国航发哈尔滨东安发动机有限公司 Method for assembling long pin of cycloid pump and cycloid pump
JP7142075B2 (en) * 2020-11-13 2022-09-26 株式会社リケン PEEK molded article and its manufacturing method

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FR2148677A5 (en) * 1971-07-30 1973-03-23 Zimmern Bernard
JPS57121485U (en) * 1981-01-22 1982-07-28
JPH0547457U (en) * 1991-11-15 1993-06-25 株式会社クボタ Engine Trochoidal Lubrication Pump
JPH07208348A (en) * 1994-01-27 1995-08-08 Brother Ind Ltd Pump
JP3082136B2 (en) * 1997-01-13 2000-08-28 本田技研工業株式会社 Manufacturing method of cylindrical sliding member
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Also Published As

Publication number Publication date
JP6084435B2 (en) 2017-02-22
US9810215B2 (en) 2017-11-07
CN104520586A (en) 2015-04-15
JP2014051964A (en) 2014-03-20
EP2896833A1 (en) 2015-07-22
EP2896833B1 (en) 2019-04-17
WO2014024701A1 (en) 2014-02-13
EP2896833A4 (en) 2016-06-01
US20150204325A1 (en) 2015-07-23

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