CN113790090A - Energy-saving type horizontal opposed engine lubricating system - Google Patents

Energy-saving type horizontal opposed engine lubricating system Download PDF

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Publication number
CN113790090A
CN113790090A CN202111015219.5A CN202111015219A CN113790090A CN 113790090 A CN113790090 A CN 113790090A CN 202111015219 A CN202111015219 A CN 202111015219A CN 113790090 A CN113790090 A CN 113790090A
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CN
China
Prior art keywords
oil
lubricating
channel
oil passage
passage
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Pending
Application number
CN202111015219.5A
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Chinese (zh)
Inventor
陈福春
许敏
李雪松
袁志远
杨晓力
刘声飞
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Hunan Huayan Laboratory Co ltd
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Hunan Huayan Laboratory Co ltd
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Application filed by Hunan Huayan Laboratory Co ltd filed Critical Hunan Huayan Laboratory Co ltd
Priority to CN202111015219.5A priority Critical patent/CN113790090A/en
Publication of CN113790090A publication Critical patent/CN113790090A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/02—Pressure lubrication using lubricating pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/10—Lubricating systems characterised by the provision therein of lubricant venting or purifying means, e.g. of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/06—Dip or splash lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10—Lubrication of valve gear or auxiliaries

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

The invention relates to the field of engines, and particularly discloses an energy-saving type horizontally-opposed engine lubricating system, wherein the engine comprises a first cylinder and a second cylinder which are horizontally opposed, and the lubricating system comprises: an oil supply system; the main oil duct is connected with the oil supply system; the oil distribution device comprises a first branch oil passage, a second branch oil passage and a third branch oil passage; a first lubricating portion connected to the first branch oil passage for lubricating a head portion of the first cylinder; the second lubricating part is connected with the second branch oil channel and used for lubricating the crankshaft part; a third lubricating portion connected to the third branch oil passage for lubricating a head portion of the second cylinder; the first branch oil passage and the second branch oil passage are arranged oppositely and extend along the transverse direction respectively; the third branch oil passage comprises a third branch oil passage I which is obliquely arranged and a third branch oil passage II which extends along the transverse direction. The invention can reduce the volume and the cost of the engine.

Description

Energy-saving type horizontal opposed engine lubricating system
Technical Field
The invention relates to the field of engines, in particular to an energy-saving type horizontally-opposed engine lubricating system.
Background
In the engine, the lubricating system is used for conveying lubricating oil to each oil-consuming part of the engine, providing lubrication, proper temperature and proper pressure for each oil-consuming part and cleaning the oil-consuming parts, so that the abrasion loss, mechanical vibration and noise of moving parts are reduced; sealing a gap between the components; the normal work of each spare part is guaranteed, life is improved.
At present, the oil consumption parts in the engine are large in number and complex in position distribution, so that the arrangement of each oil passage of a lubricating system is also very complex. In the design process, the oil supply capacity of the oil pump of the lubricating system is designed according to the rotating speed of the worst part of the engine, which often causes the excessive oil supply amount of the oil pump when the engine works normally. The complex oil passage structure further increases the burden of the oil pump, and the volume of the oil pump is too large, so that the volume of the engine is increased, and the requirements of the engine on economy and light weight are influenced.
Disclosure of Invention
In order to solve the technical problem that the engine volume is increased due to the fact that the oil pump is overloaded, the invention provides an energy-saving type horizontal opposed engine lubricating system which adopts the following specific technical scheme.
An energy efficient horizontally opposed engine lubrication system, the engine including a first cylinder and a second cylinder that are horizontally opposed, the lubrication system comprising:
an oil supply system;
the main oil duct is connected with the oil supply system; the oil distribution device comprises a first branch oil passage, a second branch oil passage and a third branch oil passage;
a first lubricating portion connected to the first branch oil passage for lubricating a head portion of the first cylinder;
the second lubricating part is connected with the second branch oil channel and used for lubricating the crankshaft part;
a third lubricating portion connected to the third branch oil passage for lubricating a head portion of the second cylinder;
the first branch oil passage and the second branch oil passage are arranged oppositely and extend along the transverse direction respectively; the third branch oil passage comprises a third branch oil passage I which is obliquely arranged and a third branch oil passage II which extends along the transverse direction.
Further, the oil supply system comprises an oil sump, an oil strainer, an oil pump and an oil filter; one end of the engine oil strainer is connected with the oil pan, and the other end of the engine oil strainer is connected with the engine oil pump; the oil pump is connected with the oil filter.
Further, the first lubrication portion includes:
the first connecting oil channel extends in the vertical direction and is connected with the first branch oil channel through a first transition oil channel;
the first air inlet camshaft lubricating part comprises a first oil inlet channel extending along the transverse direction and a first air inlet camshaft lubricating oil channel connected with the first oil inlet channel; the first oil inlet channel is connected with the first connecting oil channel;
the first exhaust camshaft lubricating part comprises a second oil inlet channel extending along the transverse direction and a first exhaust camshaft lubricating oil channel connected with the second oil inlet channel; and the second oil inlet channel is connected with the second connecting oil channel.
Further, the second lubrication portion includes:
the second connecting oil passage extends along the longitudinal direction and is connected with the second branch oil passage through a second transition oil passage;
the first bearing lubricating part comprises a first main bearing lubricating oil channel and a first connecting rod big end bearing lubricating oil channel connected with the first main bearing lubricating oil channel; the first main bearing lubricating oil channel is connected with the second connecting oil channel;
the second bearing lubricating part comprises a second main bearing lubricating oil channel connected with the second connecting oil channel;
the third bearing lubricating part comprises a third main bearing lubricating oil channel and a second connecting rod big end bearing lubricating oil channel connected with the third main bearing lubricating oil channel; and the third main bearing lubricating oil channel is connected with the second connecting oil channel.
Further, the piston portion is splash lubricated using the first or second link big end bearing.
Further, the third lubrication portion includes:
the third connecting oil passage extends in the vertical direction and is connected with the third shunting oil passage II through a third transition oil passage;
the second air inlet camshaft lubricating part comprises a third oil inlet channel extending along the transverse direction and a second air inlet camshaft lubricating oil channel connected with the third oil inlet channel; the third oil inlet channel is connected with a third connecting oil channel;
the second exhaust camshaft lubricating part comprises a fourth oil inlet channel extending along the transverse direction and a second exhaust camshaft lubricating oil channel connected with the fourth oil inlet channel; and the fourth oil inlet channel is connected with the third connecting oil channel.
Furthermore, the displacement of the oil pump is 0.002-0.006L/rev.
Further, one end, far away from the third lubricating part, of the third branch oil passage II is connected with a first balance shaft lubricating oil passage; and a first balance shaft lubricating nozzle is arranged on the first balance shaft lubricating oil channel.
Furthermore, a second balance shaft lubricating nozzle is arranged on the second connecting oil channel.
Furthermore, each oil passage is respectively integrated in the engine shell.
Has the advantages that: 1. according to the energy-saving type horizontal opposed engine lubricating system provided by the invention, most of oil passages are arranged in a mode of transverse extension or longitudinal extension; the flow directions of the lubricating oil in the transversely extending or longitudinally extending oil passages flow towards the horizontal direction, so that the power loss caused by gravity in the process of conveying the lubricating oil is reduced, and the burden of the oil pump is reduced; therefore, the oil pump with small displacement can be adopted, and the volume and the cost of the engine are reduced.
2. According to the energy-saving type horizontally-opposed engine lubricating system provided by the invention, the piston is lubricated in a splash lubrication mode by using the lubricating oil overflowing from the connecting rod big-end bearing, so that more oil-consuming elements such as a nozzle are reduced, the burden of an oil pump is further reduced, and the volume and the cost of an engine are further reduced.
3. According to the energy-saving type horizontal opposed engine lubricating system provided by the invention, the lubricating pipeline of the cylinder cover part directly connected with the first cylinder through the first branch oil passage is more skillfully designed, the pipeline structure is simple, the on-way loss is small, and the lubricating efficiency is higher.
4. According to the energy-saving type horizontal opposed engine lubricating system provided by the invention, most of the oil passages are arranged to extend transversely or longitudinally, so that lubricating oil flows along the horizontal direction, bubbles can float up to the pipe walls of the oil passages in the flowing process due to the action of gravity, bubbles entering the lubricating part are reduced, and the lubricating effect is improved.
Drawings
FIG. 1 is one of the schematic structural views of a lubrication system;
FIG. 2 is a second schematic diagram of the lubrication system (the oil pump is not shown in the drawing);
FIG. 3 is a schematic structural view of a first lubricating portion;
FIG. 4 is a schematic structural view of a second lubricating portion;
fig. 5 is a schematic structural view of the third lubricating portion.
Reference numerals: 1. an oil pan; 2. an engine oil strainer; 3. an oil pump; 4. an oil filter; 5. a main oil gallery; 6. a first lubricating section; 7. a second lubricating section; 8. a third lubricating section; 51. a first branch oil passage; 52. a second branch oil passage; 53. a third shunt oil passage I; 54. a third diversion oil passage II; 61. a first connecting oil passage; 62. a first transition oil passage; 63. a first oil inlet channel; 64. a first intake camshaft lubrication oil passage; 65. a second oil inlet channel; 66. a first exhaust camshaft lubrication oil passage; 71. a second connecting oil passage; 72. a second transition oil passage; 73. a first main bearing lubrication oil gallery; 74. a first connecting rod big end bearing lubricating oil channel; 75. a second main bearing lubricating oil duct; 76. a third main bearing lubricating oil duct; 77. a second connecting rod big end bearing lubricating oil channel; 81. a third connecting oil passage; 82. a third transition oil passage; 83. a third oil inlet duct; 84. a second intake camshaft lubrication oil passage; 85. a fourth oil inlet channel; 86. a second exhaust camshaft lubrication oil passage; 91. a first balance shaft lubrication nozzle; 92. a second balance shaft lubrication nozzle; 93. a first balance shaft lubricating oil passage; 100. the hydraulic tensioner oil passage.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. 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 application.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
The present embodiment provides an energy-saving type horizontally opposed engine lubrication system, in which the lubrication object of the lubrication system is a horizontally opposed engine including a first cylinder and a second cylinder that are horizontally opposed. Referring to fig. 1, the lubrication system includes an oil supply system, a main oil gallery 5, a first lubrication portion 6, a second lubrication portion 7, and a third lubrication portion 8.
Specifically, referring to fig. 1, the oil supply system includes an oil pan 1, an oil strainer 2, an oil pump 3, and an oil filter 4; the oil pan 1 is positioned below the cylinder body and the cylinder cover and used for recovering and storing lubricating oil; one end of the oil strainer 2 extends into the oil pan 1 to be connected with the oil pan 1, the other end of the oil strainer 2 is connected with the oil pump 3, the oil strainer 2 is used for rough filtering of lubricating oil, the oil pump 3 is connected with the oil filter 4, and the oil filter 4 is used for fine filtering of the lubricating oil and then conveying the main oil duct 5.
Specifically, referring to fig. 1 and 2, the main oil gallery 5 includes a first branch oil passage 51, a second branch oil passage 52, and a third branch oil passage, wherein the first branch oil passage 51 is arranged opposite to the second branch oil passage 52 and extends in the transverse direction, respectively; the third branch oil passage comprises a third branch oil passage I53 which is obliquely arranged and a third branch oil passage II 54 which extends along the transverse direction; and the third branch oil passage I53 is connected with the third branch oil passage II 54. The first branch oil passage 51, the second branch oil passage 52 and the third branch oil passage ii 54 extend in the transverse direction, respectively, and power loss caused by gravity in the flowing process of lubricating oil is reduced.
Specifically, referring to fig. 3, the first lubricating portion 6 includes a first connecting oil passage 61, a first intake camshaft lubricating portion, and a first exhaust camshaft lubricating portion. Wherein the first connecting oil passage 61 extends in the vertical direction and is connected to the first branch oil passage 51 through the first transition oil passage 62. The first intake camshaft lubricating portion includes a first oil inlet passage 63 extending in the lateral direction, a first intake camshaft lubricating oil passage 64 connected to the first oil inlet passage 63; the first oil inlet passage 63 is connected to the first connecting oil passage 61. The first exhaust camshaft lubricating portion includes a second oil passage 65 extending in the lateral direction, a first exhaust camshaft lubricating oil passage 66 connected to the second oil passage 65; the second oil inlet passage 65 is connected to the second connecting oil passage 71. The lubricating oil flows from the first branch oil passage 51 to the first connecting oil passage 61, and then flows to the first oil passage 63 and the second oil passage 65, respectively, the first intake camshaft is lubricated by the first intake camshaft lubricating oil passage 64, and the first exhaust camshaft is lubricated by the first exhaust camshaft lubricating oil passage 66. The first oil inlet channel 63 and the second oil inlet channel 65 extend along the transverse direction, and power loss caused by gravity in the flowing process of the lubricating oil is further reduced.
Specifically, referring to fig. 4, the second lubricating portion 7 includes a second connecting oil passage 71, a first bearing lubricating portion, a second bearing lubricating portion, and a third bearing lubricating portion. Wherein the second connecting oil passage 71 extends in the longitudinal direction and is connected to the second branch oil passage 52 through the second transition oil passage 72. The first bearing lubricating part comprises a first main bearing lubricating oil channel 73 and a first connecting rod big end bearing lubricating oil channel 74 connected with the first main bearing lubricating oil channel 73; the first main bearing lubricating oil channel 73 is connected with the second connecting oil channel 71, the first main bearing lubricating oil channel 73 is used for lubricating the first main bearing, and the first connecting rod big-end bearing lubricating oil channel 74 is used for lubricating the first connecting rod big-end bearing. The second bearing lubricating portion includes a second main bearing lubricating oil passage 75 connected to the second connecting oil passage 71, and the second main bearing is lubricated by the second main bearing lubricating oil passage 75. The third bearing lubricating part comprises a third main bearing lubricating oil channel 76 and a second connecting rod big end bearing lubricating oil channel 77 connected with the third main bearing lubricating oil channel 76; the third main bearing lubricating oil passage 76 is connected with the second connecting oil passage 71, the third main bearing lubricating oil passage 76 is used for lubricating the third main bearing, and the second connecting rod big end bearing lubricating oil passage 77 is used for lubricating the second connecting rod big end bearing. Lubricating oil flows into the second connecting oil channel 71 from the second branch oil channel 52, and then flows into the first main bearing lubricating oil channel 73, the second main bearing lubricating oil channel 75 and the third main bearing lubricating oil channel 76 respectively; the lubricating oil in the first main bearing lubricating oil channel 73 flows to the first connecting rod big end bearing lubricating oil channel 74, and the lubricating oil in the third main bearing lubricating oil channel 76 flows to the second connecting rod big end bearing lubricating oil channel 77. By the second connecting oil passage 71 extending in the longitudinal direction, power loss due to gravity during the flow of the lubricating oil is reduced.
In this embodiment, when the piston portion is lubricated, the piston portion is lubricated by using the lubricating oil splashed in the lubricating process of the first connecting rod big-end bearing or the second connecting rod big-end bearing, so that an oil nozzle is avoided, oil consumption elements are reduced, the burden of the oil pump 3 is further reduced, and the volume and the cost of the engine are reduced. Specifically, in the present embodiment, the theoretical displacement of the oil pump 3 in design needs only 0.0059L/rev.
Specifically, referring to fig. 5, the third lubricating portion 8 includes a third connecting oil passage 81, a second intake camshaft lubricating portion, and a second exhaust camshaft lubricating portion. The third connecting oil passage 81 extends in the vertical direction and is connected to the third branch oil passage through a third transition oil passage 82. The second intake camshaft lubricating portion includes a third intake oil passage 83 extending in the lateral direction, a second intake camshaft lubricating oil passage 84 connected to the third intake oil passage 83; the third oil inlet passage 83 is connected to the third connecting oil passage 81; the second intake camshaft is lubricated by a second intake camshaft lubrication gallery 84. The second exhaust camshaft lubricating portion includes a fourth oil passage 85 extending in the lateral direction, a second exhaust camshaft lubricating oil passage 86 connected to the fourth oil passage 85; the fourth oil inlet passage 85 is connected with the third connecting oil passage 81; the second exhaust camshaft is lubricated by a second exhaust camshaft lubrication oil passage 86. The lubricating oil flows into the third connecting oil passage 81 through the third branch oil passage ii 54, and then flows into the second intake camshaft lubricating oil passage 84 and the second exhaust camshaft lubricating oil passage, respectively. The third oil inlet passage 83 and the third oil inlet passage 83 both extend in the transverse direction, and power loss caused by gravity in the flowing process of lubricating oil is further reduced.
In an embodiment, a first balance shaft lubrication nozzle 91 and a second balance shaft lubrication nozzle 92 that lubricate the balance shafts are also included. Specifically, a first balance shaft lubricating oil passage 93 is connected to one end of the third branch oil passage ii 54, which is far from the third lubricating portion 8; the first balance shaft lubrication nozzle 91 is disposed on the first balance shaft lubrication oil passage 93. The second balance shaft lubrication nozzle 92 is provided on the second connecting oil passage 71.
In the embodiment, each oil passage is integrated in the engine shell, and an additional pipeline is not needed.
In the present embodiment, a hydraulic tensioner oil passage 100 extending in the longitudinal direction is connected to the third branch oil passage ii 54, and is used for supplying oil to the hydraulic tensioner.
According to the lubricating system provided by the embodiment, a large number of oil passages extending along the transverse direction and the longitudinal direction are arranged, so that the power loss caused by gravity in the lubricating oil conveying process is reduced, the burden of the oil pump 3 is reduced, the oil pump 3 with small displacement can be adopted, and the size and the cost of an engine are reduced. And before the lubricating oil flows to each oil-using component needing to be lubricated, the lubricating oil firstly passes through the oil passage which is transversely or longitudinally arranged for a long time, so that the lubricating oil firstly flows along the horizontal direction, and due to the action of gravity, bubbles can float up to the pipe wall of the oil passage in the flowing process, so that the bubbles entering the lubricating part are reduced, and the lubricating effect is improved.
In addition, the lubricating system provided by the embodiment reduces a complex oil path structure, and uses the cylinder body and the cylinder cover to integrate the oil path, so that the lubricating system has the advantages of simple structure, high integration level and small space size, and the engine meets the requirements of economy and light weight.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.

Claims (10)

1. An energy efficient horizontally opposed engine lubrication system, the engine including a first cylinder and a second cylinder that are horizontally opposed, the lubrication system comprising:
an oil supply system;
the main oil duct (5) is connected with the oil supply system; the oil pump comprises a first branch oil passage (51), a second branch oil passage (52) and a third branch oil passage;
a first lubricating portion (6) connected to the first branch oil passage (51) for lubricating a head portion of the first cylinder;
a second lubricating portion (7) connected to the second branch oil passage (52) for lubricating the crankshaft portion;
a third lubricating portion (8) connected to the third branch oil passage for lubricating a head portion of the second cylinder;
the first branch oil passage (51) and the second branch oil passage (52) are arranged oppositely and extend along the transverse direction respectively; the third branch oil passage comprises a third branch oil passage I (53) which is obliquely arranged and a third branch oil passage II (54) which extends along the transverse direction.
2. An energy efficient horizontally opposed engine lubrication system as claimed in claim 1 wherein: the oil supply system comprises an oil pan (1), an oil strainer (2), an oil pump (3) and an oil filter (4); one end of the engine oil strainer (2) is connected with the oil pan (1), and the other end of the engine oil strainer is connected with the engine oil pump (3); the oil pump (3) is connected with the oil filter (4).
3. An energy efficient horizontally opposed engine lubrication system as claimed in claim 1 wherein: the first lubricating portion (6) includes:
the first connecting oil channel (61) extends along the vertical direction and is connected with the first branch oil channel (51) through a first transition oil channel (62);
the first intake camshaft lubricating part comprises a first oil inlet channel (63) extending along the transverse direction and a first intake camshaft lubricating oil channel (64) connected with the first oil inlet channel (63); the first oil inlet channel (63) is connected with the first connecting oil channel (61);
the first exhaust camshaft lubricating part comprises a second oil inlet channel (65) extending along the transverse direction and a first exhaust camshaft lubricating oil channel (66) connected with the second oil inlet channel (65); the second oil inlet channel (65) is connected with a second connecting oil channel (71).
4. An energy efficient horizontally opposed engine lubrication system as claimed in claim 1 wherein: the second lubricating portion (7) includes:
the second connecting oil channel (71) extends along the longitudinal direction and is connected with the second branch oil channel (52) through a second transition oil channel (72);
the first bearing lubricating part comprises a first main bearing lubricating oil channel (73) and a first connecting rod big-end bearing lubricating oil channel (74) connected with the first main bearing lubricating oil channel (73); the first main bearing lubricating oil channel (73) is connected with the second connecting oil channel (71);
a second bearing lubrication section including a second main bearing lubrication oil passage (75) connected to the second connection oil passage (71);
the third bearing lubricating part comprises a third main bearing lubricating oil channel (76) and a second connecting rod big end bearing lubricating oil channel (77) connected with the third main bearing lubricating oil channel (76); and the third main bearing lubricating oil channel (76) is connected with the second connecting oil channel (71).
5. An energy efficient horizontally opposed engine lubrication system as claimed in claim 4 wherein: the piston part is splash-lubricated by the first connecting rod big end bearing or the second connecting rod big end bearing.
6. An energy efficient horizontally opposed engine lubrication system as claimed in claim 1 wherein: the third lubricating portion (8) includes:
the third connecting oil passage (81) extends in the vertical direction and is connected with the third branch oil passage II (54) through a third transition oil passage (82);
the second air inlet camshaft lubricating part comprises a third oil inlet channel (83) extending along the transverse direction and a second air inlet camshaft lubricating oil channel (84) connected with the third oil inlet channel (83); the third oil inlet passage (83) is connected with a third connecting oil passage (81);
a second exhaust camshaft lubricating portion including a fourth oil inlet passage (85) extending in the lateral direction, a second exhaust camshaft lubricating oil passage (86) connected to the fourth oil inlet passage (85); and the fourth oil inlet channel (85) is connected with the third connecting oil channel (81).
7. An energy efficient horizontally opposed engine lubrication system as claimed in claim 2 wherein: the displacement of the oil pump (3) is 0.002-0.006L/rev.
8. An energy efficient horizontally opposed engine lubrication system as claimed in claim 1 wherein: one end, far away from the third lubricating part (8), of the third branch oil passage II (54) is connected with a first balance shaft lubricating oil passage (93); and a first balance shaft lubricating nozzle (91) is arranged on the first balance shaft lubricating oil channel (93).
9. An energy efficient horizontally opposed engine lubrication system as claimed in claim 4 wherein: and a second balance shaft lubricating nozzle (92) is arranged on the second connecting oil channel (71).
10. An energy-saving horizontally opposed engine lubricating system according to any one of claims 1 to 9, wherein: each oil passage is respectively integrated in the engine shell.
CN202111015219.5A 2021-08-31 2021-08-31 Energy-saving type horizontal opposed engine lubricating system Pending CN113790090A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111015219.5A CN113790090A (en) 2021-08-31 2021-08-31 Energy-saving type horizontal opposed engine lubricating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111015219.5A CN113790090A (en) 2021-08-31 2021-08-31 Energy-saving type horizontal opposed engine lubricating system

Publications (1)

Publication Number Publication Date
CN113790090A true CN113790090A (en) 2021-12-14

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Application Number Title Priority Date Filing Date
CN202111015219.5A Pending CN113790090A (en) 2021-08-31 2021-08-31 Energy-saving type horizontal opposed engine lubricating system

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