CA2028064A1 - Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes - Google Patents

Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes

Info

Publication number
CA2028064A1
CA2028064A1 CA 2028064 CA2028064A CA2028064A1 CA 2028064 A1 CA2028064 A1 CA 2028064A1 CA 2028064 CA2028064 CA 2028064 CA 2028064 A CA2028064 A CA 2028064A CA 2028064 A1 CA2028064 A1 CA 2028064A1
Authority
CA
Canada
Prior art keywords
cycloidal
gear
hypo
epi
gear pump
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.)
Granted
Application number
CA 2028064
Other languages
French (fr)
Other versions
CA2028064C (en
Inventor
Eric Cozens
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.)
Stackpole Ltd
Original Assignee
Stackpole 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 Stackpole Ltd filed Critical Stackpole Ltd
Priority to CA 2028064 priority Critical patent/CA2028064C/en
Publication of CA2028064A1 publication Critical patent/CA2028064A1/en
Application granted granted Critical
Publication of CA2028064C publication Critical patent/CA2028064C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • F04C2/101—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 with a crescent-shaped filler element, located between the inner and outer intermeshing members
    • 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
    • F04C2/084—Toothed wheels

Landscapes

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

Abstract

A crescent pump gear including: a housing having a chamber communicating with an intake port and a discharge port; a shaft journaled for rotation within said chamber; an externally toothed inner gear mounted centrally on said shaft about a first axis; an internally toothed annular gear eccentrically mounted for rotational engagement with said inner gear about a second axis; a crescent contacting a portion of said inner and outer gears; said inner gear has a dual cycloidal tooth profile generated about a first generating circle and said outer gear has a dual cycloidal tooth profile generated about a second generating circle.
CA 2028064 1990-10-19 1990-10-19 Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes Expired - Lifetime CA2028064C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2028064 CA2028064C (en) 1990-10-19 1990-10-19 Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2028064 CA2028064C (en) 1990-10-19 1990-10-19 Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes

Publications (2)

Publication Number Publication Date
CA2028064A1 true CA2028064A1 (en) 1992-04-20
CA2028064C CA2028064C (en) 1995-02-21

Family

ID=4146198

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2028064 Expired - Lifetime CA2028064C (en) 1990-10-19 1990-10-19 Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes

Country Status (1)

Country Link
CA (1) CA2028064C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089841A (en) * 1998-06-26 2000-07-18 General Motors Corporation Crescent gear pump
CN113167367A (en) * 2018-11-08 2021-07-23 福利·阿伯维 Planetary roller screw mechanism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6089841A (en) * 1998-06-26 2000-07-18 General Motors Corporation Crescent gear pump
CN113167367A (en) * 2018-11-08 2021-07-23 福利·阿伯维 Planetary roller screw mechanism

Also Published As

Publication number Publication date
CA2028064C (en) 1995-02-21

Similar Documents

Publication Publication Date Title
US5163826A (en) Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes
EP0594849A4 (en) Rotary piston internal combustion engine.
JPS61108884A (en) Trochoid oil pump
CA2136430A1 (en) Rotary engine
CA2028064A1 (en) Crescent gear pump with hypo cycloidal and epi cycloidal tooth shapes
JPS61138893A (en) Trochoidal oil pump
GB1426223A (en) Rotary positive-idsplacement pumps
KR880004198A (en) Rotary engine with rotor of planetary type
GB1142156A (en) Improvements in or relating to rotary fluid pressure pumps and motors of the internally meshing n and n+1 tooth type
JP2003526050A (en) Reverse gear rotor set
US1516591A (en) Rotary pump
GB1509501A (en) Internally-meshing gears
ATE82044T1 (en) INTERNAL GEAR PUMPS.
ES8504347A1 (en) Spherical gear pump.
GB1269745A (en) Improvements in or relating to internally meshing gear pumps
US5135373A (en) Spur gear with epi-cycloidal and hypo-cycloidal tooth shapes
ATE68557T1 (en) INBOARD ROTARY LOBE MACHINE.
IL42053A (en) Rotary engine of trochoidal design
ES8407559A1 (en) Internal gear pump.
JPS6148984U (en)
TW325507B (en) Fluid apparatus of an internal gear type
JP2910087B2 (en) Gear device
CN219795549U (en) Variable cycloid pump
JPH0326318Y2 (en)
JPS61223281A (en) Oil pump device

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry