EP1242744A1 - Carter de pompe - Google Patents

Carter de pompe

Info

Publication number
EP1242744A1
EP1242744A1 EP00982243A EP00982243A EP1242744A1 EP 1242744 A1 EP1242744 A1 EP 1242744A1 EP 00982243 A EP00982243 A EP 00982243A EP 00982243 A EP00982243 A EP 00982243A EP 1242744 A1 EP1242744 A1 EP 1242744A1
Authority
EP
European Patent Office
Prior art keywords
housing
tabs
recesses
fan
ear
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
EP00982243A
Other languages
German (de)
English (en)
Other versions
EP1242744B1 (fr
Inventor
Todd W. Leonhard
Shawn Leu
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.)
Thomas Industries Inc
Original Assignee
Thomas Industries Inc
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 Thomas Industries Inc filed Critical Thomas Industries Inc
Publication of EP1242744A1 publication Critical patent/EP1242744A1/fr
Application granted granted Critical
Publication of EP1242744B1 publication Critical patent/EP1242744B1/fr
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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/066—Cooling by ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Definitions

  • This invention relates to pumps such as compressors and vacuum pumps, and in
  • Reciprocating piston or diaphragm pumps typically have a metal housing, for
  • a metal housing is needed, particularly for larger pumps, to
  • a rotary electric motor is usually used to drive these pumps and the motor
  • the motor is provided between two housings, each
  • the motor is a through shaft so that each end of the shaft mounts one of the pistons or
  • a rotary fan blade is mounted to each end of the shaft to draw a flow of cooling
  • rotary fan blade is mounted circular and just slightly larger than the diameter of the fan
  • the end of the housing must be closed with a cover which permits air to be
  • the invention provides a fan guard which easily attaches to the housing, without
  • the fan guard is perforated so as to permit the inflow of air to the housing
  • peripheral tabs which extend into the housing in a direction parallel to the
  • the tabs have a crescent-shaped profile, and similarly shaped recesses
  • the crescent-shaped recesses of the housing have holes
  • Each tab of the fan guard has an ear which snaps into the hole in the
  • the recesses and holes are cast-in features of the housing.
  • holes which are formed in the recesses preferably have a horizontal axis to permit them
  • Each ear also has an axis, which
  • a ramped surface is preferably provided on the distal end
  • fan guard tabs are inserted into the end of the housing.
  • the crescent-shaped tabs which are also referred to herein as D-shaped, are
  • case portion of the housing may be provided.
  • the tabs and recesses are provided with two on
  • the fan guard will generally be round, but it is desirable to provide at least one
  • housing recesses are arranged symmetrically on opposite sides of a vertical axis, the holes
  • Fig. 1 is a perspective view of a pump incorporating the invention
  • Fig. 2 is a view like Fig. 1, but with the fan guards exploded off of the pump
  • Fig.3 is a sectional view with its plane radial to the shaft of the pump and through
  • Fig.4 is a detail view from the same plane as Fig. 3 of a single one of the tabs and
  • Fig.5 is a longitudinal cross-sectional view of one of the tabs received in a recess
  • Fig. 1 illustrates a pump 10 of the invention having a motor 12 with a housing 14
  • the housings 14 and 16 are cast of aluminum
  • the pump 10 also includes fan guards 40, one at each end, which are identical to
  • the motor 12 has a shaft 42 which extends through it
  • the housing of the motor 12 is provided with holes to provide for the exhaust
  • the housings 14 and 16 mount bearings (bearings not shown)
  • the housings 14 and 16 also have openings in them which journal the shaft 42.
  • the housings 14 and 16 also have openings in them which
  • Each fan guard 40 is perforated, having radial spokes with spaced circular ribs
  • guard 40 has a rim 50 which on its inner side defines a groove 52 in which a lip 54 of
  • the adjacent housing 14, 16 is received to help locate the fan guard 40 radially relative
  • a projection 56 extends radially from the rim 50 and fits into opening 58 which
  • projection 56 helps locate the fan guard 40 angularly relative to the housing 14 or 16 to
  • the fan guard 40 is made of a
  • suitable resilient plastic resin such as a polyester polymer.
  • Each guard 40 has four tabs 60, each in a different quadrant, which extend parallel
  • each tab 60 is D- or crescent-
  • Each tab 60 has an ear 68 which snaps into a hole 70 formed
  • the recess 66 and hole 70 are both features which can readily be cast
  • tabs 60 are symmetrical about lines which are radial to the shaft 42 along lines 84 and 86,
  • the ears 68 and holes 70 are not, being aligned along the horizontal lines 80 and 82,
  • each tab 60 has a ramped lead-in, or distal, surface 90
  • ear 68 also has a proximal surface 92 which is at a right angle or nearly right angle to

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)

Abstract

Selon l'invention, un carter de pompe (14, 16) comprend une grille de protection (40) fixée sur l'extrémité du carter par quatre pattes en forme de croissant (60) emboîtées dans quatre évidements (66) encastrés dans le carter (14, 16) ainsi que des languettes (68) de pattes (60) emboîtées dans des trous (70) encastrés dans le carter (14, 16). Les languettes (68) et les trous (70) situés sur des côtés opposés au carter (14, 16) sont alignés le long d'un axe commun (80, 82). Les languettes (68) présentent des extrémités avant (90) effilées et des extrémités arrières équarries. La grille (40) présente une projection radiale (56) s'emboîtant dans une ouverture du carter (14, 16).
EP00982243A 1999-11-29 2000-11-28 Carter de pompe Expired - Lifetime EP1242744B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16783999P 1999-11-29 1999-11-29
US167839P 1999-11-29
PCT/US2000/032384 WO2001038743A1 (fr) 1999-11-29 2000-11-28 Carter de pompe

Publications (2)

Publication Number Publication Date
EP1242744A1 true EP1242744A1 (fr) 2002-09-25
EP1242744B1 EP1242744B1 (fr) 2006-04-05

Family

ID=22609054

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00982243A Expired - Lifetime EP1242744B1 (fr) 1999-11-29 2000-11-28 Carter de pompe

Country Status (8)

Country Link
EP (1) EP1242744B1 (fr)
JP (1) JP4052628B2 (fr)
CN (1) CN1246595C (fr)
AU (1) AU1930001A (fr)
CA (1) CA2392909C (fr)
DE (1) DE60027202T2 (fr)
MX (1) MXPA02005296A (fr)
WO (1) WO2001038743A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936203A2 (fr) 2006-12-13 2008-06-25 Pfeiffer Vacuum Gmbh Pompe à vide dotée d'un ventilateur

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050220637A1 (en) 2004-04-01 2005-10-06 Hydro-Gear Limited Partnership Fan shroud for pump
US20060104833A1 (en) * 2004-11-12 2006-05-18 Thomas Industries Inc. Fan guard having channel to direct cooling air to a piston cylinder
US20060275160A1 (en) 2005-05-17 2006-12-07 Leu Shawn A Pump improvements
ITTO20050839A1 (it) * 2005-11-28 2007-05-29 Faiveley Transp Piossasco S P A Gruppo di generazione e trattamento di fluidi aeriformi compressi, con sistema di raffreddamento perfezionato.
WO2008030839A2 (fr) * 2006-09-05 2008-03-13 Gardner Denver Thomas, Inc. Raccords d'admission et d'évacuation de fluide pour un compresseur ou une pompe
CN101163385B (zh) * 2006-10-12 2012-04-11 株式会社三社电机制作所 电镀用电源装置的风扇外壳的卡止结构
FR2931903B1 (fr) * 2008-05-30 2011-06-24 Thomas Industries Inc Carter de pompe
JP6021141B2 (ja) * 2012-06-08 2016-11-09 アルバック機工株式会社 ポンプ装置
CN103470505A (zh) * 2013-09-30 2013-12-25 柳州易舟汽车空调有限公司 压缩机机壳
WO2016106469A1 (fr) * 2014-12-29 2016-07-07 浙江鸿友压缩机制造有限公司 Structure d'agencement de refroidissement pour compresseur sans huile du type à liaison directe
AU2019399232B2 (en) 2018-12-11 2022-12-22 Nitto Kohki Co., Ltd. Member for pump installation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2615884C2 (de) * 1976-04-10 1985-12-12 Maico Elektroapparate-Fabrik GmbH, 7730 Villingen-Schwenningen Einbaulüfter
DE3228395C2 (de) * 1982-07-29 1986-07-24 Hitachi, Ltd., Tokio/Tokyo Verfahren zum Herstellen von Abdeckungen
DE4337631A1 (de) * 1993-11-04 1995-05-11 Kloeckner Humboldt Deutz Ag Schutzvorrichtung für ein Gebläse einer Brennkraftmaschine
US5584675A (en) * 1995-09-15 1996-12-17 Devilbiss Air Power Company Cylinder sleeve for an air compressor
GB2314593B (en) * 1996-06-28 1999-11-10 Thomas Industries Inc Two-cylinder air compressor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0138743A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1936203A2 (fr) 2006-12-13 2008-06-25 Pfeiffer Vacuum Gmbh Pompe à vide dotée d'un ventilateur

Also Published As

Publication number Publication date
AU1930001A (en) 2001-06-04
JP2003515061A (ja) 2003-04-22
DE60027202T2 (de) 2006-12-14
DE60027202D1 (de) 2006-05-18
CN1246595C (zh) 2006-03-22
JP4052628B2 (ja) 2008-02-27
EP1242744B1 (fr) 2006-04-05
CN1402815A (zh) 2003-03-12
MXPA02005296A (es) 2003-09-22
CA2392909A1 (fr) 2001-05-31
CA2392909C (fr) 2006-10-10
WO2001038743A1 (fr) 2001-05-31

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