Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
  • F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
  • F16K1/04—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle with a cut-off member rigid with the spindle, e.g. main valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
  • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
  • F02B37/12—Control of the pumps
  • F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
  • F02B37/183—Arrangements of bypass valves or actuators therefor
  • F02B37/186—Arrangements of actuators or linkage for bypass valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
  • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
  • F02B39/16—Other safety measures for, or other control of, pumps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
  • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
  • F02M26/52—Systems for actuating EGR valves
  • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
  • F02M26/54—Rotary actuators, e.g. step motors
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
  • F02M26/65—Constructional details of EGR valves
  • F02M26/66—Lift valves, e.g. poppet valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
  • F02M26/65—Constructional details of EGR valves
  • F02M26/74—Protection from damage, e.g. shielding means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K27/00—Construction of housing; Use of materials therefor
  • F16K27/02—Construction of housing; Use of materials therefor of lift valves
  • F16K27/029—Electromagnetically actuated valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K31/00—Actuating devices; Operating means; Releasing devices
  • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
  • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
  • F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
  • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
  • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
  • F02D9/1075—Materials, e.g. composites
  • F02D9/1085—Non-organic materials, e.g. metals, alloys, ceramics
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
  • F02M26/65—Constructional details of EGR valves
  • F02M26/72—Housings
  • F02M26/73—Housings with means for heating or cooling the EGR valve
• • 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
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T137/00—Fluid handling
  • Y10T137/6851—With casing, support, protector or static constructional installations
  • Y10T137/7036—Jacketed

Definitions

• the invention relates to a control valve for mounting to an internal combustion engine with a housing having an inlet and an outlet, a control body that dominates a passage between the inlet and the outlet, an actuator to which the control body is attached, an actuator via which the Actuator is set in motion, and which is fixed to the housing and a heat shield, which is arranged between the actuator and the internal combustion engine.
• control valves are used for example as exhaust gas recirculation valves exhaust valves or waste gate valves.
• the heat shield is integrally formed with the housing of the control valve, eliminating both the separate production of the heat shield and its additional installation, at the same time mounting errors are excluded by incorrect installation.
• the shielding by this directly cast heat shield is better than a heat shield made of sheet metal.
• the housing is preferably a light metal casting, which on the one hand ensures low weights and on the other hand ensures the high shielding.
• a transmission is arranged between the actuator and the heat shield, via which the actuator is coupled to the actuator.
• the projection surface of the actuator without connector in the direction of the heat shield is smaller than the heat shield.
• the heat shield extends substantially in a semicircular shape around the transmission. In this way, a lateral heat radiation is at least partially shielded by the heat shield.
• control valve is a plug valve whose housing is inserted into a control channel and fastened via a flange on the control channel bar.
• the heat shield extends vertically from the flange, by means of which the control valve is attached to the control channel. This structure is easy to die-cast too realize, since perpendicular to each other Entformungsebenen be formed.
• a 5 hole is formed in the flange, through which a valve rod acting as an actuator extends into the transmission. Accordingly, a lift valve can be used with a very accurate control.
• a mounting plate extends from the flange parallel to the heat shield, which at least partially accommodates the gear and is attached to the side of the actuator facing away from the heat shield.
• the actuator can also be attached to the housing by a simple flange connection.
• the transmission penetrates the mounting plate and can be connected to the valve rod on the opposite side. The necessary installation effort is correspondingly low.
• a cover of the gearbox is attached to the heat shield side of the mounting plate. This can be fastened in particular by a simple clip connection to the mounting plate fastened by the side facing the heat shield.
• control valve is an exhaust gas recirculation valve and the actuator has an electric motor.
• these are particularly advantageous to perform as plug-in valves and can be arranged in the range of an exhaust gas heat exchanger, that the heat transfer from the exhaust duct to the actuator is reduced.
• the valve it is possible for the valve to be arranged on the heat exchanger such that the heat absorbed by the heat shield can be dissipated via the coolant. It is thus created a control valve for mounting to an internal combustion engine, which can be produced in a few manufacturing steps and not least because of a small number of individual components easily and
• Figure 1 shows a housing of a control valve according to the invention in a perspective view.
• Figure 2 shows an inventive control valve with the housing of Figure 1 in a perspective view.
• the control valve according to the invention has a housing 10 shown in Figure 1, which is made of a light metal by die-casting.
• the control valve is designed as a plug-in valve, so that an inlet 12 and an outlet 14 are formed one above the other on a cylindrical base body 16. Between the two the inlet 12 and the outlet 14 forming window, a passage 18 is formed on this base body 16, which is surrounded by a valve seat 20, serving as a control body, not visible in the figures valve closing body in the passage 18 occlusive Condition is deductible, which can be lifted in the regulating state of the valve seat 20.
• the control body is attached to an also not visible actuator in the form of a valve rod which extends along the central axis of the base body 16 and projects through a flange 22 which limits the base 16 and has a central opening 24 for passage of the valve stem.
• an also not visible actuator in the form of a valve rod which extends along the central axis of the base body 16 and projects through a flange 22 which limits the base 16 and has a central opening 24 for passage of the valve stem.
• two screw holes 25 are formed, via which the housing 10 can be attached to an exhaust duct after insertion into this.
• a heat shield 26 extends in a direction opposite to the base body 16, as well as a mounting plate 28, which has a flange surface 30 facing in direction opposite to the heat shield 26.
• An electromotive actuator 32 in the present exemplary embodiment is fastened to this flange surface 30 via four screws 36 inserted into corresponding screw holes 34, as can be seen in FIG.
• the electric motor is arranged in an outer housing 38 with an end cap 40, wherein a plug 42 for powering the electric motor protrudes out of a second housing part 44 to the outside, which is connected via a clip connection with the outer housing 38.
• the mounting plate 28 has a large central opening 46 through which a not shown gear to the valve rod so in the area between the mounting plate 28 and the heat shield 26 protrudes and is connected there in a known manner there for example via an eccentric with the valve stem, so that the Rotational movement of the electric motor in a translational movement of the valve stem and thus the valve closing body is converted.
• a transmission in particular a planetary gear can be used.
• the space into which the gear protrudes from the opening 46 is closed by a cover 48, which is fastened to the mounting plate 28 by positive engagement.
• the cover 48 has a first lug 50 which projects behind the mounting plate 28 and a second lug 52, which is clamped between the mounting plate 28 and the heat shield.
• the heat shield 26 extends substantially parallel to the mounting plate 28 and has an arcuate shape, so that the opening 24 is surrounded by the heat shield 26 about half its circumference.
• the height of the heat shield 26 substantially corresponds to the height of the mounting plate 28, so that the actuator 32 with the exception of the plug 42 is completely shielded from thermal radiation from the mounting plate 28 opposite side of the heat shield 26 through the heat shield 26.
• the control valve which is preferably used as an exhaust gas recirculation valve, can now be attached to an internal combustion engine such that the heat shield 26 points in the direction of the internal combustion engine.
• the resulting heat radiation at the engine is kept away from the actuator 32 by the heat shield 26, so that its thermal load drops significantly even when directly attached to the engine, whereby an overload of the electronic components of the actuator 32 is reliably prevented.
• this heat shield 26 is made in one piece with the housing 10 of the control valve, so that an additional manufacture and assembly of the heat shield omitted.
• the electric motor can be pre-assembled with the gear, pushed through the opening 30 and then mounted by means of screws 36 in a simple manner. Subsequently, only the Coupled to the actuator completed and the cover 48 are secured by inserting the nose 50 behind the mounting plate 28 of the transmission. This results in a control valve, which can be produced with very little assembly and manufacturing costs and thus cost.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Toxicology (AREA)
• Health & Medical Sciences (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Exhaust-Gas Circulating Devices (AREA)
• Details Of Valves (AREA)
• Valve Housings (AREA)
• Temperature-Responsive Valves (AREA)

Priority Applications (4)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48444360

Family Applications (1)

Country Status (6)

Cited By (3)

Families Citing this family (9)

Citations (5)

Family Cites Families (6)

• 2012
  • 2012-05-29 DE DE102012104612.3A patent/DE102012104612B4/de active Active
• 2013
  • 2013-05-07 IN IN7335DEN2014 patent/IN2014DN07335A/en unknown
  • 2013-05-07 EP EP13722728.6A patent/EP2855910B1/de not_active Not-in-force
  • 2013-05-07 CN CN201380020062.2A patent/CN104246200B/zh active Active
  • 2013-05-07 US US14/404,452 patent/US20150122351A1/en not_active Abandoned
  • 2013-05-07 WO PCT/EP2013/059482 patent/WO2013178442A1/de not_active Ceased

Patent Citations (5)

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