CN111156064A - Electric control valve structure and engine - Google Patents

Electric control valve structure and engine Download PDF

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Publication number
CN111156064A
CN111156064A CN201911359160.4A CN201911359160A CN111156064A CN 111156064 A CN111156064 A CN 111156064A CN 201911359160 A CN201911359160 A CN 201911359160A CN 111156064 A CN111156064 A CN 111156064A
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China
Prior art keywords
exhaust valve
valve
electric control
exhaust
valve structure
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Application number
CN201911359160.4A
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Chinese (zh)
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CN111156064B (en
Inventor
蒋海勇
蔡文远
卢瑞军
沈玉芳
苏茂辉
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Nanchong Geely Commercial Vehicle Research Institute Co ltd
Tianjin Alcohol Hydrogen Research And Development Co ltd
Zhejiang Geely Holding Group Co Ltd
Geely Sichuan Commercial Vehicle Co Ltd
Zhejiang Geely Remote New Energy Commercial Vehicle Group Co Ltd
Original Assignee
Nanchong Geely Commercial Vehicle Research Institute Co ltd
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd
Geely Sichuan Commercial Vehicle 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.)
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Application filed by Nanchong Geely Commercial Vehicle Research Institute Co ltd, Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely New Energy Commercial Vehicle Group Co Ltd, Geely Sichuan Commercial Vehicle Co Ltd filed Critical Nanchong Geely Commercial Vehicle Research Institute Co ltd
Priority to CN201911359160.4A priority Critical patent/CN111156064B/en
Publication of CN111156064A publication Critical patent/CN111156064A/en
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Publication of CN111156064B publication Critical patent/CN111156064B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/06—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for braking
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0005—Deactivating valves
    • F01L2013/001—Deactivating cylinders

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The invention discloses an electric control valve structure, which comprises an intake valve electric control valve structure, an exhaust valve electric control valve structure, a first oil way and a second oil way, wherein the intake valve electric control valve structure is connected with the exhaust valve electric control valve structure; the first oil way is respectively communicated with the intake valve electric control valve structure and the exhaust valve electric control valve structure; the second oil way is communicated with the exhaust valve electric control valve structure; the hydraulic pressure in the second oil passage is greater than the hydraulic pressure in the first oil passage. The invention also discloses an engine, and the electric control valve structure is applied. The electric control valve structure disclosed by the invention solves the problem that the existing electric control valve structure can not simultaneously realize the functions of variable valve timing, variable valve lift, partial cylinder deactivation of an engine and in-cylinder brake control.

Description

Electric control valve structure and engine
Technical Field
The invention belongs to the technical field of engines, and particularly relates to an electronic control valve structure and an engine.
Background
The variable valve system (VVA) has wide application in the field of passenger car gasoline engines, and particularly, the VVT (variable valve timing) technology has become a standard technology of gasoline engines basically, while the VVL (variable valve lift) technology has gradually become a technical trend of gasoline engines as the standard technology is mature.
In another cam-less electromagnetic valve type valve mechanism capable of realizing fully variable valve timing and lift, the valve rod part is provided with two valve springs and two electromagnetic coils. When the engine does not work, the two electromagnetic coils are not electrified. When the valve is opened, the lower coil is electrified to compress the lower spring; when the valve is closed, the upper coil is energized to compress the upper spring. The variable valve mechanism can also realize partial cylinder deactivation technology, but the valve seating impact force is large, and the reliability and the service life are low.
In the field of heavy-duty engines of commercial vehicles, the application of variable valve technology is less, and the specific in-cylinder braking function requirements of the heavy-duty engines of the commercial vehicles at present are met, and the required valve opening and closing force is different from the valve opening and closing force required by the normal operation of the engines, so that the electromagnetic valve type variable valve mechanism cannot realize the functions of variable valve timing, variable valve lift, partial cylinder deactivation of the engines and in-cylinder motion control in the field of the heavy-duty engines of the commercial vehicles.
The cylinder braking applied to the heavy engine of the current commercial vehicle, whether compression release type braking or exhaust valve braking is driven by a cam mechanism, needs to add other valve transmission mechanisms such as cam molded lines, rocker arms and the like, and has the disadvantages of complex structure and incompact arrangement.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides an electrically controlled valve structure which can simultaneously realize the functions of variable valve timing, variable valve lift, partial cylinder deactivation of an engine, in-cylinder braking and the like and can provide buffering for valve seating.
The invention is realized by the following technical scheme:
an electric control valve structure comprises an intake valve electric control valve structure, an exhaust valve electric control valve structure, a first oil way and a second oil way; the first oil way is respectively communicated with the intake valve electric control valve structure and the exhaust valve electric control valve structure; the second oil way is communicated with the exhaust valve electric control valve structure; the hydraulic pressure in the second oil passage is greater than the hydraulic pressure in the first oil passage.
Further, the exhaust valve electric control valve structure comprises an exhaust valve electric control valve device and an exhaust valve component, and the exhaust valve electric control valve device is used for driving the exhaust valve component; the exhaust valve electric control valve device comprises an exhaust valve power piece, an exhaust valve buffer piece and an exhaust valve ejector rod, wherein the exhaust valve buffer piece is used for providing buffer for the seating of the exhaust valve.
Furthermore, the electric control valve device of the exhaust valve further comprises an upper cover of the exhaust valve and a lower cover of the exhaust valve; the upper exhaust valve cover is provided with an exhaust valve power part hole, the exhaust valve power part is attached to the hole wall of the exhaust valve power part hole and can move along the hole wall, the lower exhaust valve cover is an exhaust valve hollow cavity, and the exhaust valve buffer part is attached to the inner wall of the exhaust valve hollow cavity and can move along the inner wall; an exhaust valve ejector rod hole is formed in the bottom of the exhaust valve lower cover, and the exhaust valve ejector rod is attached to the hole wall of the exhaust valve ejector rod hole and can move along the hole wall; the exhaust valve upper cover and the exhaust valve lower cover are spliced into a whole.
Furthermore, a first air hole and a second air hole are formed in the side wall of the exhaust valve lower cover and are respectively arranged at two ends of the exhaust valve hollow cavity.
Further, the liquid in the first oil passage and the second oil passage is lubricating oil.
Further, the exhaust valve assembly includes an exhaust valve and an exhaust valve spring; the top of the exhaust valve is arranged below the exhaust valve ejector rod and is used for completing opening and closing along with the movement of the exhaust valve ejector rod; the exhaust valve spring is sleeved on the exhaust valve and used for enabling the exhaust valve to return.
Further, when the exhaust valve power part (211) is at a compression top dead center, the first oil path (3) is closed, and the opening and closing of the exhaust valve (221) are controlled by the second oil path (4), so that in-cylinder braking is realized.
Further, the opening and closing of the intake valve and the exhaust valve are controlled by the first oil path, and full variable valve timing and full variable valve lift are realized.
Further, the first oil path and the second oil path do not act, and cylinder deactivation of the cylinder where the electric control valve structure is located is controlled.
The invention also discloses an automobile, which applies the electric control valve structure.
By adopting the technical scheme, the electric control valve structure and the automobile provided by the invention have the following beneficial effects:
1. low-pressure oil is supplied to the first oil way, and high-pressure oil is supplied to the second oil way; when the exhaust valve power part compresses the top dead center, the first oil way is closed, and the second oil way controls the opening and closing of the exhaust valve to realize in-cylinder braking; the opening and closing of an intake valve and an exhaust valve are controlled by a first oil way, so that the timing and the lift of a fully variable valve are realized; and the first oil path and the second oil path do not act to control the cylinder deactivation of the cylinder where the electric control valve structure is located.
2. According to the invention, through the arrangement of the buffer piston, valve seating buffer is realized, impact force is reduced, reliability is improved, and service life is prolonged.
3. The invention is a cam-free electric control valve mechanism, reserves a return valve spring of the traditional valve mechanism, cancels transmission mechanisms such as a cam and a rocker arm, has simple structure and compact arrangement, and is suitable for the design of a new machine type and the electric control transformation of an old machine type.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.
FIG. 1 is a schematic structural diagram of an exhaust valve electric control valve structure in an electric control valve structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an electrically controlled valve structure of an intake valve in an electrically controlled valve structure according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the structure of an exhaust valve electrically controlled valve device in an exhaust valve electrically controlled valve structure.
Fig. 4 is a partial mechanism schematic of fig. 3.
Fig. 5 is a schematic structural diagram of an intake electrically controlled valve device in an intake valve electrically controlled valve structure.
Fig. 6 is a partial mechanism schematic of fig. 5.
Wherein the reference numerals in the figures correspond to: 1-intake valve electric control valve structure, 2-exhaust valve electric control valve structure, 3-first oil path, 4-second oil path, 11-intake valve electric control valve device, 12-intake valve device, 111-intake valve power device, 112-intake valve buffer device, 113 intake valve mandril, 114-intake valve upper cover, 115-intake valve lower cover, 116-intake valve power device hole, 117-intake valve hollow cavity, 118-intake valve mandril hole, 119-third air hole, 120-fourth air hole, 121-intake valve, 122-intake valve spring, 21-exhaust valve electric control valve device, 22-exhaust valve device, 211-exhaust valve power device, 212-exhaust valve buffer device, 213-exhaust valve mandril, 214-exhaust valve upper cover, 215-exhaust valve lower cover, 216-exhaust valve power part hole, 217-exhaust valve hollow cavity, 218-exhaust valve ejector rod hole, 219-first air hole, 220-second air hole, 221-exhaust valve and 222-exhaust valve spring.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the invention. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein.
As shown in fig. 1 to 6, an electrically controlled valve structure according to an embodiment of the present invention is characterized by including an intake valve electrically controlled valve structure 1, an exhaust valve electrically controlled valve structure 2, a first oil passage 3, and a second oil passage 4; the first oil way 3 is respectively communicated with the intake valve electric control valve structure 1 and the exhaust valve electric control valve structure 2; the second oil path 4 is communicated with the exhaust valve electric control valve structure 2;
the liquid pressure in the second oil passage 4 is greater than the liquid pressure in the first oil passage 3, and in the embodiment of the present invention, the liquids in the first oil passage 3 and the second oil passage 4 are lubricating oil; in other words, the first oil passage 3 contains low-pressure lubricating oil, and the second oil passage 4 contains high-pressure lubricating oil.
The intake valve electrically-controlled valve structure 1 comprises an intake valve electrically-controlled valve device 11 and an intake valve assembly 12, wherein the intake valve electrically-controlled valve device 11 is used for driving the intake valve assembly 12; more specifically, the electrically controlled valve device 11 of the intake valve comprises an intake valve upper cover 114, an intake valve lower cover 115, an intake valve power piece 111, an intake valve buffer piece 112 and an intake valve mandril 113, wherein the intake valve buffer piece 112 is used for providing buffer for seating of the intake valve; an intake valve power part hole 116 is formed in the intake valve upper cover 114, the intake valve power part 111 is attached to the hole wall of the intake valve power part hole 116 and can move along the hole wall, the intake valve lower cover 115 comprises an intake valve hollow cavity 117, and the intake valve buffer 112 is attached to the inner wall of the intake valve hollow cavity 117 and can move along the inner wall; an intake valve ejector rod hole 118 is formed in the bottom of the intake valve lower cover 115, and the intake valve ejector rod 113 is attached to the hole wall of the intake valve ejector rod hole 118 and can move along the hole wall; the intake valve upper cover 114 and the intake valve lower cover 115 are connected and spliced into a whole through bolts, and in another embodiment of the invention, the intake valve upper cover 114 and the intake valve lower cover 115 are spliced into a whole through riveting. In the embodiment of the present invention, a third air hole 119 and a fourth air hole 120 are disposed on the sidewall of the intake valve lower cover 115, and are respectively disposed at the upper end and the lower end of the intake valve hollow cavity 117. In the embodiment of the present invention, the intake valve buffer 112 is a buffer piston, and according to the predetermined valve lift rule, the rigidity of the valve spring, the oil pressure, and other parameters, the diameter of the buffer piston, the size of the intake air amount of the first air hole 219 and the second air hole 220 are set, and the actual compression ratio is adjusted, so that valve seating buffer is realized, impact force is reduced, and reliability and service life are improved.
The exhaust valve electric control valve structure 2 comprises an exhaust valve electric control valve device 21 and an exhaust valve assembly 22, wherein the exhaust valve electric control valve device 21 is used for driving the exhaust valve assembly 22; more specifically, the exhaust valve electric control valve device 21 comprises an exhaust valve upper cover 214, an exhaust valve lower cover 215, an exhaust valve power element 211, an exhaust valve buffer element 212 and an exhaust valve mandril 213, wherein the exhaust valve buffer element 212 is used for providing buffer for the seating of the exhaust valve; an exhaust valve power part hole 216 is formed in the exhaust valve upper cover 214, the exhaust valve power part 211 is attached to the hole wall of the exhaust valve power part hole 216 and can move along the hole wall, the exhaust valve lower cover 215 comprises an exhaust valve hollow cavity 217, and the exhaust valve buffer part 212 is attached to the inner wall of the exhaust valve hollow cavity 217 and can move along the inner wall; an exhaust valve ejector rod hole 218 is formed in the bottom of the exhaust valve lower cover 215, and the exhaust valve ejector rod 213 is attached to the hole wall of the exhaust valve ejector rod hole 218 and can move along the hole wall; the exhaust valve upper cover 214 and the exhaust valve lower cover 215 are integrally spliced through bolt connection, and in another embodiment of the invention, the exhaust valve upper cover 214 and the exhaust valve lower cover 215 are integrally spliced through riveting. In the embodiment of the present invention, a first air hole 219 and a second air hole 220 are disposed on a sidewall of the exhaust valve lower cover 215, and are respectively disposed at an upper end and a lower end of the exhaust valve hollow cavity 217. In the embodiment of the present invention, the exhaust valve buffer 212 is a buffer piston, and according to parameters such as a predetermined valve lift rule, rigidity of a valve spring, and oil pressure, the diameter of the buffer piston, and the sizes of the air intake amounts of the first air hole 219 and the second air hole 220 are set, so as to adjust the actual compression ratio, realize valve seating buffer, reduce impact force, and improve reliability and service life.
In the embodiment of the invention, the intake valve assembly 12 includes an intake valve 121 and an intake valve spring 122; the top of the intake valve 121 is placed below the intake valve lift pin 113 and is used for completing opening and closing along with the movement of the intake valve lift pin 113; the intake valve spring 122 is sleeved on the intake valve 121 and used for enabling the intake valve 121 to return; the exhaust valve assembly 22 comprises an exhaust valve 221 and an exhaust valve spring 222; the top of the exhaust valve 221 is arranged below the exhaust valve mandril 213 and is used for completing opening and closing along with the movement of the exhaust valve mandril 213; the exhaust valve spring 222 is sleeved on the exhaust valve 221 and used for enabling the exhaust valve 221 to return.
The electric control valve structure can be applied to the field of heavy engines of commercial vehicles, and can be divided into three working conditions in the specific working process:
1. when the exhaust valve power part 211 is at the top dead center of compression, the first oil path 3 (low-pressure lubricating oil path) is closed, and the second oil path 4 (high-pressure lubricating oil path) controls the opening and closing of the exhaust valve 221, so that in-cylinder braking is realized.
2. The opening and closing of the intake valve 121 and the exhaust valve 221 are controlled by the first oil passage 3 (low-pressure oil passage), and the fully variable valve timing and the fully variable valve lift are realized.
3. And the first oil way 3 (low-pressure oil way) and the second oil way 4 (high-pressure oil way) do not act, and the cylinder deactivation of the cylinder where the electric control valve structure is located is controlled.
The embodiment of the invention also provides an engine which can be a methanol fuel engine and also can be a large-scale engine of a commercial vehicle such as a diesel fuel engine, and the engine is provided with the electric control valve structure.
The invention provides an electric control valve structure and an automobile, wherein low-pressure lubricating oil is supplied into a first oil way 3, and high-pressure lubricating oil is supplied into a second oil way 4; when the exhaust valve power part 211 is at a compression top dead center, the first oil path 3 does not work, and the second oil path 4 controls the opening and closing of the exhaust valve 221 to realize in-cylinder braking; the opening and closing of the intake valve 121 and the exhaust valve 221 are controlled by the first oil path 3, so that the full variable valve timing and the full variable valve lift are realized; the first oil path 3 and the second oil path 4 do not act, and cylinder deactivation of the cylinder where the electric control valve structure is located is controlled; according to the embodiment of the invention, through the arrangement of the buffer piston, the valve seating buffer is realized, the impact force is reduced, the reliability is improved, and the service life is prolonged; the embodiment of the invention is a cam-free electric control valve mechanism, reserves a return valve spring of the traditional valve mechanism, cancels transmission mechanisms such as a cam and a rocker arm, has simple structure and compact arrangement, and is suitable for the design of a new machine type and the electric control transformation of an old machine type.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. An electric control valve structure is characterized by comprising an intake valve electric control valve structure (1), an exhaust valve electric control valve structure (2), a first oil way (3) and a second oil way (4);
the first oil way (3) is respectively communicated with the intake valve electric control valve structure (1) and the exhaust valve electric control valve structure (2);
the second oil path (4) is communicated with the exhaust valve electric control valve structure (2);
the liquid pressure in the second oil passage (4) is greater than the liquid pressure in the first oil passage (3).
2. The electronically controlled valve structure according to claim 1, characterized in that the exhaust valve electronically controlled valve structure (2) includes an exhaust valve electronically controlled valve device (21) and an exhaust valve assembly (22), the exhaust valve electronically controlled valve device (21) being for actuating the exhaust valve assembly (22);
the exhaust valve electric control valve device (21) comprises an exhaust valve power piece (211), an exhaust valve buffer piece (212) and an exhaust valve ejector rod (213), wherein the exhaust valve buffer piece (212) is used for providing buffering for the seating of the exhaust valve.
3. The electrically controlled valve structure according to claim 2, characterized in that the electrically controlled valve device (21) further includes an upper exhaust valve cover (214) and a lower exhaust valve cover (215); an exhaust valve power part hole (216) is formed in the exhaust valve upper cover (214), the exhaust valve power part (211) is attached to the hole wall of the exhaust valve power part hole (216) and can move along the hole wall, the exhaust valve lower cover (215) comprises an exhaust valve hollow cavity (217), and the exhaust valve buffer part (212) is attached to the inner wall of the exhaust valve hollow cavity (217) and can move along the exhaust valve hollow cavity; an exhaust valve ejector rod hole (218) is formed in the bottom of the exhaust valve lower cover (215), and the exhaust valve ejector rod (213) is attached to the hole wall of the exhaust valve ejector rod hole (218) and can move along the hole wall; the exhaust valve upper cover (214) and the exhaust valve lower cover (215) are spliced into a whole.
4. The electric control valve structure according to claim 3, characterized in that a first air hole (219) and a second air hole (220) are arranged on the side wall of the exhaust valve lower cover (215) and are respectively arranged at two ends of the exhaust valve hollow cavity (217).
5. The electrically controlled valve structure according to claim 4, characterized in that both the liquids in the first oil passage (3) and the second oil passage (4) are lubricating oil.
6. The electrically controlled valve structure according to any one of claims 2 to 5, characterized in that the exhaust valve assembly (22) includes an exhaust valve (221) and an exhaust valve spring (222); the top of the exhaust valve (221) is arranged below the exhaust valve mandril (213) and is used for completing opening and closing along with the movement of the exhaust valve mandril (213); the exhaust valve spring (222) is sleeved on the exhaust valve (221) and used for enabling the exhaust valve (221) to return.
7. The electrically controlled valve structure according to any one of claim 6, characterized in that the first oil passage (3) is closed when the exhaust valve power member (211) is at compression top dead center, and the second oil passage (4) controls the opening and closing of the exhaust valve (221) to realize in-cylinder braking.
8. The electrically controlled valve structure according to any one of claims 6, characterized in that the opening and closing of the intake valve and the exhaust valve (211) is controlled by the first oil passage (3) to achieve a fully variable valve timing and a fully variable valve lift.
9. An electrically controlled valve structure according to any one of claims 6, characterized in that neither the first oil passage (3) nor the second oil passage (4) is active, controlling deactivation of the cylinder in which the electrically controlled valve structure is located.
10. An engine characterized in that the electrically controlled valve structure according to any one of claims 1 to 9 is applied.
CN201911359160.4A 2019-12-25 2019-12-25 Electric control valve structure and engine Active CN111156064B (en)

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CN111156064B CN111156064B (en) 2022-05-10

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CN102444443A (en) * 2011-01-13 2012-05-09 大连理工大学 Internal combustion engine intake gate and exhaust gate control method
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