KR930013489A - Electric pump for supplying secondary air of automotive catalytic converter - Google Patents

Electric pump for supplying secondary air of automotive catalytic converter Download PDF

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Publication number
KR930013489A
KR930013489A KR1019920009276A KR920009276A KR930013489A KR 930013489 A KR930013489 A KR 930013489A KR 1019920009276 A KR1019920009276 A KR 1019920009276A KR 920009276 A KR920009276 A KR 920009276A KR 930013489 A KR930013489 A KR 930013489A
Authority
KR
South Korea
Prior art keywords
motor
secondary air
electric pump
pump
pressure
Prior art date
Application number
KR1019920009276A
Other languages
Korean (ko)
Inventor
무쯔오 세끼야
사또시 아사다
Original Assignee
시끼 모리야
미쯔비시 덴끼 가부시끼가이샤
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 시끼 모리야, 미쯔비시 덴끼 가부시끼가이샤 filed Critical 시끼 모리야
Publication of KR930013489A publication Critical patent/KR930013489A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D5/00—Pumps with circumferential or transverse flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D23/00—Other rotary non-positive-displacement pumps
    • F04D23/008—Regenerative pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

[목적] 차량용 촉매 콘버터에의 2차 공기 공급에 적합한 압력-유량 특성을 가지며, 수명이 길고, 모터를 고효율화할 수 있는 전동 펌프를 제공한다.[Objective] An electric pump having a pressure-flow characteristic suitable for supplying secondary air to a catalyst converter for a vehicle, having a long service life and capable of high efficiency of the motor is provided.

[구성]와류신 펌프(1)를 사용함으로써, 공급 공기의 압력 변화에 대한 유량의 변화가 적어진다. 이 특성으로부터 촉매 콘버터에, 촉매의 온도를 저하시키지 않을 정도의 적당한 유량과 충분한 압력으로 2차 공기를 공급하도록, 공급 공기의 압력과 유량을 용이하게 콘트롤할 수 있게 된다. 더욱이 그 공급 공기의 압력을 유량을 적당하게 유지한 상태에서 광범위하게 바꿀 수도 있게 된다. 또한 와류식 펌프는 임펠러의 회전수가 낮기 때문에, 그만큼 전동 펌프의 수명을 연장시킬 수가 있다. 다시 공기의 흡입구(10)를 모터(3)측에 설치하여 그 모터(3)내부에 공기 유로(11)를 형성함으로써, 모터를 자동적으로 냉각하여 그 효율을 높일 수 있다.[Configuration] By using the vortex flow pump 1, the change of the flow rate with respect to the pressure change of supply air becomes small. From this characteristic, it is possible to easily control the pressure and flow rate of the supply air so as to supply secondary air at a suitable flow rate and sufficient pressure so as not to lower the temperature of the catalyst to the catalyst converter. Moreover, the pressure of the supply air can be varied widely while maintaining the flow rate appropriately. In addition, since the vortex pump has a low rotational speed of the impeller, the life of the electric pump can be extended by that much. The air inlet 10 is provided on the motor 3 side again, and the air flow path 11 is formed inside the motor 3, whereby the motor can be automatically cooled to increase its efficiency.

Description

차량용 촉매 콘버터의 2차공기 공급용 전동펌프Electric pump for supplying secondary air of automotive catalytic converter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 실시예 1에 잇어서 2차 공기 공급용 전동 펌프의 단면도1 is a cross-sectional view of an electric pump for supplying secondary air according to Embodiment 1 of the present invention.

제2도는 실시예 1에 있어서 2차 공기 공급용 전동 펌프의 압력-유량 특성도.2 is a pressure-flow characteristic diagram of the electric pump for secondary air supply in Example 1. FIG.

제3A도 및 제3B도는 본 발명의 실시예 2에 있어서 2차 공기 공급용 전동 펌프의 단면도.3A and 3B are sectional views of the electric pump for secondary air supply in Example 2 of this invention.

Claims (4)

와류식 펌프와, 상기 펌프의 임펠러를 회전시키는 모터를 일체로 조립하여 구성하는 동시에, 공기의 흡입구 또는 토출구를 상기 모터의 케이싱에 설치하므로써, 모터내부에 공기 유로를 형성한 것을 특징으로 하는 차량용 촉매 콘버터의 2차 공기 공급용 전동 펌프.A vehicle catalyst characterized in that the vortex pump and the motor for rotating the impeller of the pump are integrally assembled, and an air flow path is formed inside the motor by providing an air inlet or a discharge port in the casing of the motor. Electric pump for supplying secondary air to the converter. 제1항에 있어서, 상기 모터로서 브러시레스 모터를 사용하는 것을 특징으로 하는 차량용 촉매 콘버터의 2차 공기 공급용 전동 펌프.2. The electric pump for secondary air supply of a catalyst converter for a vehicle according to claim 1, wherein a brushless motor is used as said motor. 제1항 또는 제2항에 있어서, 상기 모터에 소음기를 설치하는 것을 특징으로 하는 차량용 촉매 콘버터의 2차 공기 공급용 전동 펌프.3. The electric pump for secondary air supply of a catalytic converter for a vehicle according to claim 1 or 2, wherein a silencer is provided in said motor. 제1항 내지 제3항에 있어서, 상기 와류식 펌프의 임펠러를 구성하는 다수의 날개의 피치를, 그 임펠러의 회전축에 대해서 대칭으로 한 상태에서, 불균등 피치로 한 것을 특징으로 하는 차량용 촉매 콘버터의 2차 공기 공급용 전동 펌프.4. The catalyst converter for a vehicle according to claim 1, wherein the pitch of the plurality of vanes constituting the impeller of the vortex pump is set to an uneven pitch in a state in which the pitch of the blades is symmetrical with respect to the axis of rotation of the impeller. Electric pump for secondary air supply. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920009276A 1991-12-27 1992-05-29 Electric pump for supplying secondary air of automotive catalytic converter KR930013489A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP91-347360 1991-12-27
JP3347360A JPH05179941A (en) 1991-12-27 1991-12-27 Motor driven pump for secondary air supply of catalytic converter for vehicle

Publications (1)

Publication Number Publication Date
KR930013489A true KR930013489A (en) 1993-07-22

Family

ID=18389702

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920009276A KR930013489A (en) 1991-12-27 1992-05-29 Electric pump for supplying secondary air of automotive catalytic converter

Country Status (2)

Country Link
JP (1) JPH05179941A (en)
KR (1) KR930013489A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323894A (en) * 2021-06-04 2021-08-31 烟台东德实业有限公司 Anticorrosive explosion-proof vortex type hydrogen circulating pump

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3826508B2 (en) * 1997-08-06 2006-09-27 株式会社デンソー Fuel pump
JP4075264B2 (en) * 2000-01-28 2008-04-16 セイコーエプソン株式会社 Axial fan, centrifugal fan, and electronic equipment using them
JP2005282500A (en) * 2004-03-30 2005-10-13 Toshiba Corp Fluid pump, cooling device and electric apparatus
JP5373103B2 (en) * 2008-11-14 2013-12-18 アルフレツド ケルヒヤー ゲーエムベーハー ウント コンパニー カーゲー High pressure washer
CN104196737B (en) * 2014-09-01 2016-06-15 中国一冶集团有限公司 Centrifugal blower
CN110080866A (en) * 2019-05-31 2019-08-02 重庆大江动力设备制造有限公司 A kind of emission reduction device on generating set

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113323894A (en) * 2021-06-04 2021-08-31 烟台东德实业有限公司 Anticorrosive explosion-proof vortex type hydrogen circulating pump
CN113323894B (en) * 2021-06-04 2022-08-12 烟台东德实业有限公司 Anticorrosive explosion-proof vortex type hydrogen circulating pump

Also Published As

Publication number Publication date
JPH05179941A (en) 1993-07-20

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A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application