CN112065621A - Diesel engine intake manifold - Google Patents

Diesel engine intake manifold Download PDF

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Publication number
CN112065621A
CN112065621A CN201910504159.XA CN201910504159A CN112065621A CN 112065621 A CN112065621 A CN 112065621A CN 201910504159 A CN201910504159 A CN 201910504159A CN 112065621 A CN112065621 A CN 112065621A
Authority
CN
China
Prior art keywords
rotating shaft
intake manifold
diesel engine
motor
bearing seat
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.)
Pending
Application number
CN201910504159.XA
Other languages
Chinese (zh)
Inventor
黄英铭
练海年
占文锋
陈良
朱晨虹
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.)
Guangzhou Automobile Group Co Ltd
Original Assignee
Guangzhou Automobile Group Co 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 Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN201910504159.XA priority Critical patent/CN112065621A/en
Publication of CN112065621A publication Critical patent/CN112065621A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • 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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • F02B31/08—Modifying induction systems for imparting a rotation to the charge in the cylinder having multiple air inlets
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10249—Electrical or electronic devices fixed to the intake system; Electric wiring
    • 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way 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
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10262—Flow guides, obstructions, deflectors or the like
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The invention provides a diesel engine intake manifold, which comprises an intake manifold body, a rotating shaft, a motor and a valve plate, wherein a branched air passage of the intake manifold body comprises a conventional air passage and a vortex air passage which are alternately arranged, the rotating shaft is coaxially connected with the motor, the motor outputs axial torque for the rotating shaft, the rotating shaft sequentially penetrates through the conventional air passage and the vortex air passage, the valve plate is arranged in the vortex air passage and is fixedly connected with the rotating shaft, and the valve plate rotates along with the rotation of the rotating shaft to realize the control of the valve plate on the switch of the vortex air passage. According to the diesel engine intake manifold, the motor directly drives the rotating shaft, the motor output torque is large, the transmission resistance is small, and the control precision of the rotating angle is high.

Description

Diesel engine intake manifold
Technical Field
The invention relates to the technical field of engines, in particular to an intake manifold of a diesel engine.
Background
The intake manifold is one of the key parts of the diesel engine intake system, is a pipeline which is arranged on a cylinder cover and used for connecting an intake manifold to each cylinder air passage of the cylinder cover, and has the function of distributing air to each cylinder air passage. Most of the existing diesel engine intake manifolds are not provided with a variable vortex mechanism, so that the vortex ratio in a cylinder cannot be effectively adjusted. In addition, even if a small part of the intake manifold of the diesel engine is provided with the variable vortex mechanism, the rocker arm type connecting rod mechanism is usually adopted to transmit the torque of the motor, so that the whole structure is complex, the transmission resistance is large, the arrangement is complex, and the Noise, Vibration and Harshness (NVH) problem can be generated.
Disclosure of Invention
In view of the above, there is a need for an intake manifold of a diesel engine with a simple structure and a reasonable design to overcome the shortcomings of the prior art.
The invention provides a diesel engine intake manifold, which comprises an intake manifold body, a rotating shaft, a motor and a valve plate, wherein a branched air passage of the intake manifold body comprises a conventional air passage and a vortex air passage which are alternately arranged, the rotating shaft is coaxially connected with the motor, the motor outputs axial torque for the rotating shaft, the rotating shaft sequentially penetrates through the conventional air passage and the vortex air passage, the valve plate is arranged in the vortex air passage and is fixedly connected with the rotating shaft, and the valve plate rotates along with the rotation of the rotating shaft to realize the control of the valve plate on the switch of the vortex air passage.
Further, the diesel engine intake manifold further comprises a driving block, the driving block is arranged between the rotating shaft and the motor, and a torque output part of the motor, the driving block and the rotating shaft are coaxial.
Further, the drive block includes pivot connecting portion and motor connecting portion, the draw-in groove has been seted up to pivot connecting portion axial direction, the one end of pivot is provided with the connector, the draw-in groove with the connector block is connected, torque output portion axial direction has seted up connecting slot, motor connecting portion block in connecting slot.
Furthermore, a blocking piece is arranged between the rotating shaft connecting part and the motor connecting part, the motor connecting part is clamped in the connecting clamping groove, and the blocking piece is limited outside the connecting clamping groove.
Further, the diesel engine air intake manifold still includes the bearing frame, the bearing frame will the pivot erects just but the pivot axial rotation.
The bearing seat comprises a first bearing seat component and a second bearing seat component, wherein a semicircular first shaft groove is formed in the first bearing seat component, a positioning pin is arranged on the first bearing seat component on the same side of the first shaft groove in a protruding mode, a semicircular second shaft groove is formed in the second bearing seat component, a connecting hole is formed in the second bearing seat component on the same side of the second shaft groove, and the first shaft groove and the second shaft groove are buckled to form the bearing when the positioning pin is inserted into the connecting hole.
Further, a semi-annular protruding portion is arranged in the first shaft groove, a second semi-annular protruding portion is arranged in the second shaft groove, the semi-annular protruding portion and the second semi-annular protruding portion form an annular protruding portion when the first shaft groove and the second shaft groove are buckled to form a bearing, the rotating shaft is inserted into the bearing and contacts with the highest point of the annular protruding portion, and the rotating shaft and the bearing seat form linear contact.
Furthermore, the bearing seat further comprises a limiting protrusion part, the limiting protrusion part is convexly arranged outside the first bearing seat component and/or the second bearing seat component, and the limiting protrusion part limits the valve plate to rotate along with the rotating shaft within a certain range.
Furthermore, a connecting surface is cut on the rotating shaft and is recessed into the rotating shaft, and the valve plate is fixedly connected with the connecting surface.
Further, the connector is in a regular polygonal prism structure.
The technical scheme of the invention has the following beneficial effects: according to the diesel engine intake manifold, the motor directly drives the rotating shaft, the motor output torque is large, the transmission resistance is small, and the control precision of the rotating angle is high.
Drawings
Fig. 1 is a schematic diagram of the structure of an intake manifold of a diesel engine according to the present invention.
Fig. 2 is a schematic structural view of a diesel engine intake manifold (variable swirl actuator) with an intake manifold body removed.
Fig. 3 is a left side view of fig. 2.
FIG. 4 is a schematic view of the disassembly of the spindle, drive block, and motor.
Fig. 5 is a schematic structural diagram of the rotating shaft and the bearing seat.
Fig. 6 is a schematic view of the disassembly of the bearing housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an intake manifold of a diesel engine, fig. 2 is a schematic structural diagram of the intake manifold (variable vortex actuator) of the diesel engine with an intake manifold body removed, fig. 3 is a left side view of fig. 2, fig. 4 is a schematic structural diagram of a rotating shaft, a driving block and a motor, fig. 5 is a schematic structural diagram of the rotating shaft and a bearing seat, and fig. 6 is a schematic structural diagram of the bearing seat. Referring to fig. 1 to 6, a diesel engine intake manifold 10 includes an intake manifold body 11, a rotating shaft 12, a driving block 13, a motor 14, a valve sheet 15, and a bearing housing 16.
The intake manifold body 11 is a pipeline for air intake of engine cylinders, the intake manifold body 11 comprises an intake manifold 111 and branch air passages 112 of each cylinder connected with the intake manifold 111, the branch air passages 112 comprise conventional air passages 113 and vortex air passages 114, the number of the conventional air passages 113 corresponds to that of the vortex air passages 114, and the conventional air passages 113 and the vortex air passages 114 are alternately arranged and are linearly arranged. In the present embodiment, the branched air passage 112 includes four regular air passages 113 and four vortex air passages 114, and the regular air passages 113 and the vortex air passages 114 are alternately arranged. The cross-section of the intake manifold 111, the conventional air passage 113, and the swirl air passage 114 may be circular or elliptical, but is not limited thereto.
The rotating shaft 12 is an elongated shaft body, the rotating shaft 12 is cut with connecting surfaces 124, the connecting surfaces 124 are recessed into the rotating shaft 12, the number of the connecting surfaces 124 corresponds to the number of the vortex air passages 114, the connecting surfaces 124 have the same size and the same spacing distance and are coplanar, and the connecting surfaces 124 are usually formed by machining and cutting. One end of the rotating shaft 12 is provided with a connector 122, the connector 122 has a regular polygonal prism structure, in this embodiment, the connector 122 has a regular quadrangular prism. The connecting head 122 is generally formed by machining and cutting the end of the rotating shaft 12, and the connecting head 122 is used for being clamped and connected with a corresponding part of the driving block 13 and can rotate axially along with the driving block 13 synchronously. The rotating shaft 12 transversely penetrates through the regular air passages 113 and the vortex air passages 114 which are alternately and linearly arranged from the outer walls of the regular air passages 113 and the vortex air passages 114 in sequence, the connecting surface 124 of the rotating shaft 12 is positioned in the vortex air passages 114, one end of the rotating shaft 12 is coaxially connected with the torque output part 142 of the motor 14 through the driving block 13, and the rotating shaft 12 axially rotates through the power provided by the motor 14.
The motor 14 is disposed outside the branched air passage 112, and specifically, the motor 14 is disposed outside the outermost conventional air passage 113 or the swirl air passage 114 of the branched air passage 112. The motor 14 includes a torque output portion 142, a connecting slot 146 is formed in an axial center of the torque output portion 142, the shape and size of the connecting slot 146 correspond to the corresponding portion of the driving block 13, and the torque output portion 142 outputs an axial rotation torque to the driving block 13.
The driving block 13 is disposed between the rotating shaft 12 and the motor 14, and the torque output portion 142 of the motor 14 is coaxial (on the same axis) with the driving block 13 and the rotating shaft 12. The driving block 13 includes a rotation shaft connecting portion 132 and a motor connecting portion 134, and the rotation shaft connecting portion 132 and the motor connecting portion 134 are coaxially and fixedly connected. The shaft connecting portion 132 is a cylindrical structure, a slot 133 is formed in an axial center of the shaft connecting portion 132, the connector 122 is engaged with the slot 133, and the shaft 12 (the connector 122) rotates axially along with the driving block 13 (the connector 122). The motor connecting portion 134 has a rectangular parallelepiped structure or a substantially rectangular parallelepiped structure, the motor connecting portion 134 is engaged with the connecting slot 146 of the motor 14 and can axially rotate therewith, and the shape and size of the connecting slot 146 correspond to the shape and size of the motor connecting portion 134. In the present embodiment, the motor connecting portion 134 is of an approximately rectangular parallelepiped structure, that is, the longer opposite sides of the rectangular parallelepiped are symmetrically provided with arcuate projections protruding outward from the center, and the centers of the arcuate projections coincide with each other, and the center is the axial center of the motor connecting portion 134. Further, a blocking piece 136 is arranged between the rotating shaft connecting portion 132 and the motor connecting portion 134, the blocking piece 136 is coaxial with the rotating shaft connecting portion 132 and the motor connecting portion 134, the motor connecting portion 134 is clamped in a connecting clamping groove 146 of the motor 14, the blocking piece 136 is limited outside the connecting clamping groove 146 of the motor 14, the diameter of the blocking piece 136 is larger than that of the rotating shaft connecting portion 132, and the diameter of the blocking piece 136 is between the long side and the short side of the motor connecting portion 134. The drive block 13 engages and connects the motor 14 and the rotary shaft 12, and connects the rotary shaft 12 and the motor 14.
The driving block 13 enables the motor 14 to directly drive the rotating shaft 12, a transmission chain of the motor 14 is simpler and more direct, a fit clearance and twisting resistance in the transmission process are reduced, the output torque of the motor 14 is larger, the control precision of the rotating angle is higher, and the problem caused by the fact that a connecting rod mechanism is adopted to transmit the torque of the motor is avoided.
The valve sheet 15 is fixed on the connecting surface 124 of the rotating shaft 12 in the vortex air duct 114, and in this embodiment, the valve sheet 15 is directly injection-molded on the connecting surface 124 of the rotating shaft 12 through an injection molding process, but is not limited thereto. The shape of the valve sheet 15 corresponds to the shape of the cross section of the vortex air duct 114, and the size of the valve sheet 15 is slightly smaller than the size of the cross section of the vortex air duct 114, that is, when the valve sheet 15 closes the vortex air duct 114, the valve sheet 15 and the vortex air duct 114 are spaced by a certain distance, so that the valve sheet 15 is allowed to rotate with the rotating shaft 12 in the vortex air duct 114 along with the rotating shaft 12 to open the vortex air duct 114 while the valve sheet 15 does not affect the closing of the vortex air duct 114 by the valve. In the present embodiment, the valve sheet 15 is spaced apart from the swirl air passage 114 by 0.3 mm. The number of the valve sheet 15 corresponds to the number of the connection surfaces 124 (swirl passages 114).
The bearing housing 16 is plural and the bearing housing 16 is disposed on both sides of the conventional air passage 113 and the swirl air passage 114. The bearing housing 16, in addition to functioning as a bearing, also functions as a seal to prevent cross-ventilation between the conventional air passage 113 and the vortex air passage 114. The bearing housing 16 is a modular bearing housing and the bearing housing 16 includes a first bearing housing assembly 162 and a second bearing housing assembly 164.
The first bearing housing assembly 162 is provided with a first shaft groove 1622, and the first shaft groove 1622 is a semicircular groove body. A positioning pin 1623 is protruded on the first bearing seat assembly 162 on the same side as the first shaft groove 1622 (on the first bearing seat assembly 162 below or above the first shaft groove 1622). The diameter of the first shaft groove 1622 is slightly larger than the diameter of the rotating shaft 12, a semi-annular protrusion 1625 is arranged in the first shaft groove 1622, the number of the semi-annular protrusions 1625 is at least one, if the semi-annular protrusions 1625 are multiple, the semi-annular protrusions 1625 are uniformly distributed in the first shaft groove 1622, and the surface of the semi-annular protrusions 1625 is smooth. To reduce the weight of the first bracket assembly 162, a first hollow 1624 may be formed in the first bracket assembly 162.
The overall structure of the second bearing seat assembly 164 is substantially symmetrical to that of the first bearing seat assembly 162, the second bearing seat assembly 164 is provided with a second shaft groove 1642, the second shaft groove 1642 is a semicircular groove body, the size of the second shaft groove 1642 is the same as that of the first shaft groove 1622, the first shaft groove 1622 and the second shaft groove 1642 are buckled into a whole to form a bearing, and the bearing can allow the rotating shaft 12 to penetrate through the bearing. The second bearing seat assembly 164 on the same side of the second shaft groove 1642 (on the second bearing seat assembly 164 below or above the second shaft groove 1642) is provided with a connecting groove 1643, the connecting hole 1643 is matched with the positioning pin 1623, and the first shaft groove 1622 and the second shaft groove 1642 are combined to form the bearing seat 16 while the positioning pin 1623 is inserted into the connecting hole 1643. The diameter of the second shaft groove 1642 is equal to the diameter of the first shaft groove 1622 and is slightly larger than the diameter of the rotating shaft 12, a second semi-annular bulge 1645 is arranged in the second shaft groove 1642, and the surface of the second semi-annular bulge 1645 is smooth. The position, number and size of the second semi-annular projection 1645 correspond to those of the semi-annular projection 1625. When the first shaft groove 1622 and the second shaft groove 1642 are buckled to form the bearing, the second semi-annular bulge 1645 and the semi-annular bulge 1625 form a complete annular bulge, the rotating shaft 12 is inserted into the bearing, the highest point of the annular bulge is in contact with the rotating shaft 12, the rotating shaft 12 and the annular bulge are in annular line contact, and the rotating shaft 12 and the bearing seat 16 are in line contact to effectively reduce the rotating resistance of the rotating shaft 12. The bearing housing 16 mounts the rotary shaft 12 in the branched air passage 112. To reduce the weight of the second bracket assembly 164, a second hollow 1644 may be disposed on the second bracket assembly 164. The bearing support 16 is smooth on its periphery.
The bearing seat 16 on the outer periphery of the bearing is provided with a limiting protrusion 166, the limiting protrusion 166 is protruded out of the first bearing seat assembly 162 and/or the second bearing seat assembly 164, and the limiting protrusion 166 can limit the excessive rotation of the valve plate 15 along with the rotating shaft 12.
It should be noted that the outer bearing seat 16 is slightly different from the inner bearing seat 16, the outer bearing seat 16 is provided with only one annular protrusion, and the inner bearing seat 16 is provided with at least one annular protrusion, in this embodiment, the inner bearing seat 16 is provided with three annular protrusions.
The torque output part 142 of the motor 14 outputs torque and transmits the torque to the driving block 13, the driving block 13 directly drives the rotating shaft 12 to rotate axially, and controls the angle of rotation required by the rotating shaft 12, specifically, the angle when the connecting surface 124 (valve plate 15) closes the vortex air passage 114 is 0 °, then the angle of rotation is between 0 and 90 °, and meanwhile, the limiting protrusion 166 limits the excessive rotation of the valve plate 15 along with the rotating shaft 12 (namely, the motor 14 and the limiting protrusion 166 are guaranteed doubly), so as to realize the opening degree required by the valve plate 15 (connecting surface 124), and further realize the control of the vortex ratio in the diesel engine intake manifold 10.
The vortex air duct 114, the rotating shaft 12, the driving block 13, the motor 14, the valve sheet 15 and the bearing seat 16 form a variable vortex air inlet structure, and the rotating shaft 12, the driving block 13, the motor 14, the valve sheet 15 and the bearing seat 16 form a variable vortex actuator.
The diesel engine intake manifold 10 further comprises a shaft sleeve 17, the shaft sleeve 17 is arranged at the end part of the rotating shaft 12, the shaft sleeve 17 is arranged between a bearing of the bearing seat 16 on the outer side and the rotating shaft 12, the surface of the shaft sleeve 17 is smooth, the rotating shaft 12 is in clearance fit with the shaft sleeve 17, and the shaft sleeve 17 bears the load of the rotating shaft 12. Specifically, in order to provide the shaft sleeve 17, an annular protrusion is provided in the bearing on the inward side of the outer bearing seat 16, an annular groove 168 is provided in the bearing on the outward side of the outer bearing seat 16, the annular groove 168 is also a combined annular groove, the diameter of the annular groove 168 is larger than that of the bearing seat, a certain space is provided between the annular groove 168 and the rotating shaft 12, and the shaft sleeve 17 is provided in the space.
The diesel engine intake manifold 10 further comprises an oil seal 18, wherein the oil seal 18 is arranged on a shaft body at the end part of the rotating shaft 12, and the oil seal 18 plays a role of lubricating oil sealing on the rotating shaft 12.
The technical scheme of the invention has the following beneficial effects: in the diesel engine intake manifold 10, the motor 14 directly drives the rotating shaft 12, the motor 14 has large output torque, small transmission resistance and high control precision of the rotating angle.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A diesel engine intake manifold (10), characterized by: diesel engine air intake manifold (10) includes air intake manifold body (11), pivot (12), motor (14) and valve block (15), air intake manifold body's (11) branch air flue (112) are including conventional air flue (113) and vortex air flue (114) that set up in turn, pivot (12) with motor (14) coaxial coupling just motor (14) are pivot (12) output axial torque, pivot (12) pass in proper order conventional air flue (113) with vortex air flue (114), valve block (15) in vortex air flue (114) and with pivot (12) fixed connection, valve block (15) follow the rotation of pivot (12) is rotated and is realized valve block (15) are to the control of vortex air flue (114) switch.
2. The diesel engine intake manifold (10) of claim 1, characterized in that: the diesel engine intake manifold (10) further comprises a driving block (13), the driving block (13) is arranged between the rotating shaft (12) and the motor (14), and a torque output part (142) of the motor (14), the driving block (13) and the rotating shaft (12) are coaxial.
3. A diesel engine intake manifold (10) as set forth in claim 2, characterized in that: the drive block (13) comprises a rotating shaft connecting part (132) and a motor connecting part (134), a clamping groove (133) is formed in the axial center of the rotating shaft connecting part (132), a connector (122) is arranged at one end of the rotating shaft (12), the clamping groove (133) is connected with the connector (122) in a clamping mode, a connecting clamping groove (146) is formed in the axial center of the torque output part (142), and the motor connecting part (134) is clamped in the connecting clamping groove (146).
4. A diesel engine intake manifold (10) as set forth in claim 2, characterized in that: a blocking piece (136) is arranged between the rotating shaft connecting portion (132) and the motor connecting portion (134), the motor connecting portion (134) is clamped in the connecting clamping groove (146), and the blocking piece (136) is limited outside the connecting clamping groove (146).
5. The diesel engine intake manifold (10) of claim 1, characterized in that: the diesel engine intake manifold (10) further comprises a bearing seat (16), the rotating shaft (12) is erected by the bearing seat (16), and the rotating shaft (12) can axially rotate.
6. The diesel engine intake manifold (10) of claim 5, characterized in that: the bearing seat (16) comprises a first bearing seat assembly (162) and a second bearing seat assembly (164), a first semicircular shaft groove (1622) is formed in the first bearing seat assembly (162), a positioning pin (1623) is arranged on the first bearing seat assembly (162) on the same side of the first shaft groove (1622), a second semicircular shaft groove (1642) is formed in the second bearing seat assembly (164) on the same side of the second shaft groove (1642), a connecting hole (1643) is formed in the second bearing seat assembly (164) on the same side of the second shaft groove (1642), and the first shaft groove (1622) and the second shaft groove (1642) are buckled to form a bearing when the positioning pin (1623) is inserted into the connecting hole (1643).
7. The diesel engine intake manifold (10) of claim 6, characterized in that: the bearing comprises a first shaft groove (1622), a second shaft groove (1642), a semi-annular bulge (1625) and a second semi-annular bulge (1645) are arranged in the first shaft groove (1622), the semi-annular bulge (1625) and the second semi-annular bulge (1645) form an annular bulge when the first shaft groove (1622) and the second shaft groove (1642) are buckled to form a bearing, the rotating shaft (12) is inserted into the bearing and is in highest point contact with the annular bulge, and the rotating shaft (12) and the bearing seat (16) form linear contact.
8. The diesel engine intake manifold (10) of claim 6, characterized in that: the bearing seat (16) further comprises a limiting protrusion (166), the limiting protrusion (166) is arranged outside the first bearing seat assembly (162) and/or the second bearing seat assembly (164) in a protruding mode, and the limiting protrusion (166) limits the valve plate (15) to rotate along with the rotating shaft (12) within a certain range.
9. The diesel engine intake manifold (10) of claim 1, characterized in that: the rotary shaft (12) is cut with a connecting surface (124), the connecting surface (124) is recessed in the rotary shaft (12), and the valve plate (15) is fixedly connected with the connecting surface (124).
10. A diesel engine intake manifold (10) as set forth in claim 3, characterized in that: the connector (122) is in a regular polygonal prism structure.
CN201910504159.XA 2019-06-10 2019-06-10 Diesel engine intake manifold Pending CN112065621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910504159.XA CN112065621A (en) 2019-06-10 2019-06-10 Diesel engine intake manifold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910504159.XA CN112065621A (en) 2019-06-10 2019-06-10 Diesel engine intake manifold

Publications (1)

Publication Number Publication Date
CN112065621A true CN112065621A (en) 2020-12-11

Family

ID=73658745

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910504159.XA Pending CN112065621A (en) 2019-06-10 2019-06-10 Diesel engine intake manifold

Country Status (1)

Country Link
CN (1) CN112065621A (en)

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