CN203584618U - Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control - Google Patents
Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control Download PDFInfo
- Publication number
- CN203584618U CN203584618U CN201320602772.3U CN201320602772U CN203584618U CN 203584618 U CN203584618 U CN 203584618U CN 201320602772 U CN201320602772 U CN 201320602772U CN 203584618 U CN203584618 U CN 203584618U
- Authority
- CN
- China
- Prior art keywords
- assembly
- gearbox
- loop control
- egr
- output shaft
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model provides an electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control, which comprises a valve seat assembly, a center rod assembly, a valve core, an eccentric wheel assembly and a driving part thereof, wherein the driving part comprises a drive motor assembly and a gearbox which is connected with the drive motor assembly, the gearbox is connected on the upper portion of a seat body of the valve seat assembly through a gearbox shell, an output shaft of the gearbox is connected with a drive shaft of the eccentric wheel assembly, a motor is arranged in a motor shell, and the motor shell is connected on the gearbox shell. A sensor assembly which is used to detect lift height is arranged in the gearbox, a wire of an induction chip is guided out through a wire harness pipe which is arranged on the gearbox shell, a permanent magnet is cast with an output shaft of the gearbox to be an integrated body and has a radial magnetic filed, and the induction chip is a strip-type Hall sensor. The electric EGR lift valve capable of achieving closed-loop control achieves closed-loop control of an electric EGR lift valve, is accurate in control effect, and meets the NS4 emissions requirements of an engine.
Description
Technical field
The utility model belongs to communications and transportation/highway transport/automotive engineering/technical field of automobile engine, is specifically related to a kind of electronic EGR poppet valve of realizing closed loop control.
Background technique
Along with the development of automotive field technology, the continuous upgrading of engine system discharge, reduces engine system NOx by egr system and discharges, and promotes the direction that engine system discharge capacity has become each main engine factory's primary study.EGR+DOC after-treatment system higher pressure altogether rail+SCR system more has low cost, does not need the advantages such as urea of annotating.In egr system, EGR poppet valve is core, plays and controls EGR gas flow, rationally reduces the effect of NOx.Existing EGR poppet valve be take pneumatic as main, and sensitivity is not high, without Measuring opening ability is provided, cannot realize closed loop control.
Summary of the invention
The purpose of this utility model is a kind of electronic EGR poppet valve of realizing closed loop control of design, meets and adopts the motor of EGR route to reach the requirement that NS4 discharges.
The technical solution of the utility model: the electronic EGR poppet valve of realizing closed loop control of the present utility model comprises valve seat assembly, center-pole assembly, spool, eccentric wheel assembly and drive part thereof, its drive part comprises drive motor assembly and the speed reducer being attached thereto; Speed reducer is connected to the pedestal top of valve seat assembly by reduction box casing, the output shaft of speed reducer is connected with the live axle of eccentric wheel assembly; Motor is placed in electric machine casing, and electric machine casing is connected on reduction box casing.
Sensor unit for detection of lifting height is installed in speed reducer, and sensor unit comprises the induction chip being arranged on electric machine casing and is arranged on the permanent magnet on reduction gearbox output shaft, and the wire of induction chip is drawn by the wire harness pipe on reduction box casing.
Described permanent magnet is that the magnetic field being cast as one with reduction gearbox output shaft is permanent magnet radially; Induction chip is the Hall transducer of bar shaped.
Technique effect of the present utility model is as follows:
The utility model has been realized the closed loop control of electronic EGR poppet valve, controls effect accurate, and meets the requirement that motor reaches NS4 discharge.Successful Application on ISDe4.5EGR motor, respond well.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
Below in conjunction with example, the utility model is further described.
As shown in Figure 1 and Figure 2, the electronic EGR poppet valve of realizing closed loop control of the present utility model comprises valve seat assembly 1, center-pole assembly 2, spool 3, eccentric wheel assembly 4 and drive part thereof, and its drive part comprises drive motor assembly 5 and the speed reducer 6 being attached thereto; Speed reducer 6 is connected to the pedestal top of valve seat assembly 1 by reduction box casing 6a, the output shaft 6b of speed reducer 6 is connected with the live axle 4a of eccentric wheel assembly 4; Motor 5b is placed in electric machine casing 5a, and electric machine casing 5a is connected on reduction box casing 6a.
Described permanent magnet 7b is that the magnetic field being cast as one with reduction gearbox output shaft 6c is permanent magnet radially; Induction chip 7a is the Hall transducer of bar shaped.
Engine control system ECU directly controls the electronic EGR poppet valve of realizing closed loop control of the present utility model by pwm signal, and EGR poppet valve receives the instruction of ECU, by motor 5b, drives EGR poppet valve.The eccentric wheel 4 of EGR poppet valve inside, gear mechanism are converted into electric machine rotation the to-and-fro motion of center-pole assembly 2 and spool 3, thereby realize the control that motor drives poppet valve.Spring 2a is return spring.Built-in Hall transducer by the output shaft 6b angle of swing feedback voltage signal detecting to ECU.ECU calculates the actual aperture of spool by voltage signal, contrasts with the instruction of ECU simultaneously, and revision directive, thus make EGR poppet valve rise to the position needing, with this, reach closed loop control.
Described EGR poppet valve center-pole assembly 2 adopts lip seal, can effectively reduce waste gas and enter motor room internal corrosion motor and other component, promotes the EGR valve life-span.
Implementation result: the utility model has been realized the closed loop control of electronic EGR poppet valve, the utility model is used in the flow that is used for controlling EGR gas in egr system, controls effect accurate, and meets the requirement that motor reaches NS4 discharge.
Claims (3)
1. the electronic EGR poppet valve that can realize closed loop control, comprise valve seat assembly (1), center-pole assembly (2), spool (3), eccentric wheel assembly (4) and drive part thereof, it is characterized in that: the speed reducer (6) that drive part comprises drive motor assembly (5) and is attached thereto; Speed reducer (6) is connected to the pedestal top of valve seat assembly (1) by reduction box casing (6a), the output shaft (6b) of speed reducer (6) is connected with the live axle (4a) of eccentric wheel assembly (4); Motor (5b) is placed in electric machine casing (5a), and electric machine casing (5a) is connected on reduction box casing (6a).
2. the electronic EGR poppet valve of realizing closed loop control according to claim 1, it is characterized in that: the sensor unit (7) for detection of lifting height is installed in speed reducer (6), sensor unit (7) comprises the induction chip (7a) being arranged on electric machine casing (5a) and is arranged on the permanent magnet (7b) on reduction gearbox output shaft (6c), and the wire of induction chip (7a) is drawn by the wire harness pipe (6c) on reduction box casing (6a).
3. the electronic EGR poppet valve of realizing closed loop control according to claim 2, is characterized in that: permanent magnet (7b) is that the magnetic field being cast as one with reduction gearbox output shaft (6c) is permanent magnet radially; Induction chip (7a) is the Hall transducer of bar shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602772.3U CN203584618U (en) | 2013-09-27 | 2013-09-27 | Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320602772.3U CN203584618U (en) | 2013-09-27 | 2013-09-27 | Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584618U true CN203584618U (en) | 2014-05-07 |
Family
ID=50582551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320602772.3U Expired - Fee Related CN203584618U (en) | 2013-09-27 | 2013-09-27 | Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203584618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387272A (en) * | 2017-08-30 | 2017-11-24 | 无锡隆盛科技股份有限公司 | A kind of self-locking dust cap of EGR valve |
| CN107740736A (en) * | 2017-09-05 | 2018-02-27 | 温州市温纳汽车配件有限公司 | A kind of EGR valve |
-
2013
- 2013-09-27 CN CN201320602772.3U patent/CN203584618U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387272A (en) * | 2017-08-30 | 2017-11-24 | 无锡隆盛科技股份有限公司 | A kind of self-locking dust cap of EGR valve |
| CN107387272B (en) * | 2017-08-30 | 2023-03-21 | 无锡隆盛科技股份有限公司 | Auto-lock shield of EGR valve |
| CN107740736A (en) * | 2017-09-05 | 2018-02-27 | 温州市温纳汽车配件有限公司 | A kind of EGR valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102313067B (en) | Valve control apparatus | |
| CN102313064B (en) | Valve control apparatus | |
| CN102364318B (en) | Pedal durability tester | |
| CN103900451A (en) | Position detector | |
| CN104334892A (en) | Variable flow valve for turbochargers | |
| CN203584618U (en) | Electric exhaust gas recirculation (EGR) lift valve capable of achieving closed-loop control | |
| CN102661216B (en) | Valve used for diesel engine exhaust gas recirculation system | |
| JP2012013179A (en) | Valve control device | |
| CN204961070U (en) | A electric actuator for turbo charger | |
| CN202669487U (en) | Two-motor driving device of transit mixer truck | |
| JP2015206263A (en) | Full close position learning device | |
| CN109095183A (en) | A kind of waterborne vehicles transport pipeline | |
| CN203394652U (en) | EGR (exhaust gas recirculation) cooler for diesel engine | |
| CN202578955U (en) | Valve used by waste gas recirculation system of diesel engine | |
| CN203601266U (en) | Combined type air inlet pipe of air compressor | |
| CN206111300U (en) | Urea solution device of maring | |
| CN205714487U (en) | A kind of valve for engine exhaust gas recirculation | |
| CN104742741B (en) | Straight line movement type accelerator executor | |
| CN201963423U (en) | Electric EGR (exhaust gas recirculation) valve with interchangeability between gas inlet and gas outlet | |
| CN203358580U (en) | Engine assistant | |
| CN113007421A (en) | Gasoline engine EGR lift valve and opening and closing method | |
| CN203769903U (en) | Automobile engine variable-exhaust-pipe-diameter device | |
| CN208220473U (en) | A kind of straight-opening type arrangements for automotive doors is slow to open safety device | |
| CN201882140U (en) | Electric power steering system of electromobile | |
| CN203248230U (en) | Motorcycle secondary air supplement device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20170927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |