CN114198229A - Large-scale high-pressure oil pump cam box subassembly - Google Patents

Large-scale high-pressure oil pump cam box subassembly Download PDF

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Publication number
CN114198229A
CN114198229A CN202111517684.9A CN202111517684A CN114198229A CN 114198229 A CN114198229 A CN 114198229A CN 202111517684 A CN202111517684 A CN 202111517684A CN 114198229 A CN114198229 A CN 114198229A
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China
Prior art keywords
box body
oil
end cover
left end
oil pump
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Application number
CN202111517684.9A
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Chinese (zh)
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CN114198229B (en
Inventor
栗东民
涂天华
刘洋
许强
刘惠娥
张朝磊
林小雪
杨涛
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Chongqing Hongjiang Machinery Co Ltd
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Chongqing Hongjiang Machinery Co Ltd
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Priority to CN202111517684.9A priority Critical patent/CN114198229B/en
Publication of CN114198229A publication Critical patent/CN114198229A/en
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    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • 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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

A large-scale high-pressure oil pump cam box assembly comprises a lower box body, an upper box body, a cam shaft, a left end cover assembly, a right end cover assembly, a bearing bush assembly and the like. The box body adopts a split design, and a high-pressure oil pump mounting hole is formed in the upper box body and used for mounting a high-pressure oil pump; the reverse thread sleeve is arranged and used for fastening the high-pressure oil pump; the left end and the right end are provided with throttling screw plugs for controlling the amount of the lubricating oil flowing into the left thrust plate and the right thrust plate. A lubricating oil duct is arranged in the box body and used for lubricating a high-pressure oil pump, a bearing assembly, a left thrust plate and a right thrust plate; the mixed oil return channel is used for collecting the mixed oil of the high-pressure oil pump and leading the mixed oil out of the oil tank; the camshaft support portion employs a sliding bearing instead of a ball bearing. The axial limit of the camshaft is realized by the left thrust plate and the right thrust plate. And a mechanical sealing ring is designed in the left end cover assembly and is used for axial sealing of lubricating oil. The invention can meet the requirements of the single high-pressure oil pump of the prior low-speed machine on large oil supply quantity and large load of the cam box assembly.

Description

Large-scale high-pressure oil pump cam box subassembly
Technical Field
The invention belongs to the technical field of marine low-speed engine fuel systems, and relates to a large-scale high-pressure oil pump cam box assembly.
Background
The marine low-speed machine requires a single high-pressure oil pump having a large oil supply amount and a large load, and the single high-pressure oil pump itself does not have a camshaft for driving the oil supply unit to reciprocate up and down, so that a camshaft needs to be provided externally. The existing cam box can not meet the requirements of large oil supply amount and large load of the single high-pressure oil pump of the low-speed engine.
Disclosure of Invention
The invention aims to provide a large high-pressure oil pump cam box assembly for a marine low-speed machine, which meets the requirements of the existing single high-pressure oil pump of the low-speed machine on large oil supply amount and large load of the cam box assembly.
The purpose of the invention is realized by the following technical scheme:
a large-scale high-pressure oil pump cam box assembly comprises a box body, a cam shaft, a left end cover assembly, a right end cover assembly and a bearing bush assembly.
The box body is divided into a lower box body and an upper box body.
The upper box body is internally provided with a high-pressure oil pump mounting hole for mounting the high-pressure oil pump, and a reverse threaded sleeve is arranged in a bolt hole of the upper box body for connecting and fastening the high-pressure oil pump and is used for fastening the high-pressure oil pump through a bolt; and a mixed oil return channel is arranged in the upper box body and used for collecting mixed oil of the high-pressure oil pump and leading the mixed oil out to an oil tank.
The lower box body is assembled below the upper box body, and the left end, the right end and the middle of the lower box body form a bearing bush supporting hole together; the lower box body is provided with an oil return hole for returning lubricating oil and is communicated with a lubricating oil duct of the upper box body.
The bearing bush assembly is arranged in a bearing bush supporting hole, is divided into an upper bush and a lower bush, is positioned by a pin and is fastened together by a screw.
The camshaft is radially supported and installed in the box body through the bearing bush assembly, and the left end of the camshaft extends out of the box body and is used for being connected with a motor.
And the left end cover assembly and the right end cover assembly are respectively arranged at the outer sides of the bearing bush supporting holes at the left end and the right end of the upper box body and the lower box body for sealing.
Furthermore, the left end cover assembly comprises a left end cover, a left thrust plate and a sealing ring, wherein the left thrust plate is assembled on the left end cover, the left end cover is assembled at the left end of the upper box body and the left end of the lower box body, the sealing ring is assembled in the left end cover and is in clearance fit with the camshaft, and after lubricating oil flowing axially is decompressed through the annular groove on the left end cover, the lubricating oil flows back to the bottom of the lower box body shell through an oil duct of the left end cover.
Further, the right end cover assembly comprises a right end cover, a right thrust plate and an adjusting gasket; the right thrust plate is assembled on the right end cover, the right end cover and the adjusting gaskets are arranged at the right ends of the upper box body and the lower box body, and the axial movement amount of the camshaft is controlled by adjusting the number of the adjusting gaskets.
By adopting the technical scheme, the invention has the advantages that:
1. through split type design, the problem of casting, processing difficulty that exist at present has been solved. Firstly, adopt split type design to the box, overcome the whole bulky of box, there is the problem of difficulty in the whole casting. Secondly, because the torque transmitted by the camshaft is very large, the part connected with the motor needs to be fastened by a plurality of screws, so that the diameter of the connecting surface exceeds the diameter of the bearing bush, and the left end cover assembly also adopts an up-and-down split design. Thirdly, the bearing bush has too large diameter, and the whole processing is difficult, so the bearing bush is designed into an up-down split type design.
2. The firmness and the convenience of the installation of the high-pressure oil pump body are improved. The invention is provided with three independent middle holes in the upper box body, and each middle hole can be provided with a set of low-speed machine single high-pressure oil pump. Considering that cast iron is brittle and easy to concentrate stress, a threaded sleeve is designed instead of directly tapping a threaded hole connected with a high-pressure oil pump body on a box body. The screw thread suit is on last box for connect the bolt of fastening high-pressure oil pump. The threaded sleeve is positioned by screws mounted on the upper case. The screw plug is arranged below the threaded sleeve, so that the threaded sleeve is prevented from falling into the lower box body due to misoperation, screw breakage and the like.
3. And a lubricating oil duct and an oil return duct are reasonably designed. The box body is provided with an oil gallery for lubricating a high-pressure oil pump, a bearing bush assembly and left and right thrust bearings. And a mixed oil channel for collecting the high-pressure oil pump is also arranged.
4. The camshaft support part adopts a sliding bearing instead of a ball bearing, and the axial limit of the camshaft is realized by a left thrust plate and a right thrust plate.
5. The axial float clearance of the camshaft is adjusted by adjusting the number of the adjusting gaskets, rather than ensuring the axial float clearance by tightening the axial dimension requirements of each part, so that the precision requirements on the axial dimension of each part are greatly reduced, and the processing cost and the processing period are saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
Fig. 3 is a schematic view of the internal structure of fig. 2.
Fig. 4 is a schematic illustration of the oil gallery 1.
Fig. 5 is a schematic illustration of the oil gallery 2.
FIG. 6 is a schematic view of a seal ring groove.
In the figure: 1, a lower box body, 2, an upper box body, 3, a left end cover assembly, 4, a camshaft, 5, a lubricating oil inlet hole, 6, a high-pressure oil pump mounting hole, 7, a right end cover assembly, 8 positioning keys, 9 cylindrical pins, 10 left thrust plates, 11, a left end cover, 12 sealing rings, 13, 14 bearing bush assemblies, 15, a right end cover, 16, a right thrust plate, 17, 18 adjusting gaskets, 19 thread sleeves, 20 screws and 21 thread plugs;
100 lubricating oil channels, 101 upper box body first oil channels, 102 upper box body annular grooves, 103 lubricating oil return holes, 104 oil channels, 105, 106, 107, 108, 109 and 110 left end cover first, second, third, fourth, fifth and sixth oil channels, 111 lower box body oil channels, 112 annular grooves, 113 upper box body second oil channels, 114 upper box body third oil channels and 115 sealing ring annular grooves;
200 return oil ducts and 201 return oil holes.
Detailed Description
The invention is described in more detail below with reference to the accompanying drawings:
referring to fig. 1 to 6, the present embodiment provides a cam box assembly for a low-speed single high-pressure oil pump, which mainly includes a lower case 1, an upper case 2, a left end cover assembly 3, a camshaft 4, a right end cover assembly 7, a bearing bush assembly 14, and the like.
The whole volume of the box body of the cam box is large, and the whole casting is difficult, so that the box body adopts a split type design and is divided into a lower box body 1 and an upper box body 2.
Three middle holes which are independently arranged are arranged in the upper box body 2 and serve as high-pressure oil pump mounting holes 6, and a set of low-speed machine single high-pressure oil pump can be assembled in each high-pressure oil pump mounting hole.
Referring to fig. 3, in order to install the high-pressure oil pump, considering that the cast iron is brittle and easy to concentrate stress, a threaded sleeve 19 is designed instead of directly tapping a threaded hole connected with the pump body of the high-pressure oil pump on the upper box body 2, and the threaded sleeve 19 is arranged in a through hole on the upper box body and used for connecting and fastening a bolt of the high-pressure oil pump. And the threaded sleeve is positioned by means of a screw 20 mounted on the upper box. The screw plug 21 is arranged below the threaded sleeve, so that the threaded sleeve is prevented from falling into the lower box body due to misoperation, screw breakage and the like.
The lower box body 1 is assembled below the upper box body 2, and the left end, the right end and the middle of the lower box body and the upper box body jointly form a bearing bush supporting hole.
The camshaft support portion employs a slide bearing. Because the bearing bush diameter is too big, there is the difficulty in whole processing, so design it for split type design from top to bottom, the bearing bush subassembly 14 contains upper shoe and lower tile two parts promptly, installs in the bearing bush support hole, realizes the location through the pin, fastens together through the screw, plays radial support effect to camshaft 4.
The camshaft 4 is radially supported and installed in the upper and lower cases through the bearing bush assembly 14, and the left end of the camshaft 4 extends out of the cases for connecting with a motor.
And the left end cover component 3 and the right end cover component 7 are respectively arranged on the outer sides of the bearing bush supporting holes at the left end and the right end of the upper box body and the lower box body for sealing.
For the left end cover assembly 3, because the torque transmitted by the camshaft is very large, the part connected with the motor needs to be fastened by using a plurality of screws, and the diameter of the connecting surface exceeds the diameter of the bearing bush, the left end cover assembly 3 adopts an up-and-down split type design. The left end cover assembly 3 mainly comprises a left thrust plate 10, a left end cover 11 and a sealing ring 12, wherein the left thrust plate 10 is fastened to the left end cover 11 through screws, and the left end cover 11 is fixed to the upper box body and the lower box body through screws.
Referring to fig. 6, the sealing ring 12 is a mechanical sealing ring, is used for axial sealing of lubricating oil, is installed in the left end cover 11, is in clearance fit with the camshaft 4, and releases the pressure of the axially flowing lubricating oil through the upper sealing ring groove 115, and then flows back to the bottom of the lower case shell through the oil passage of the left end cover.
The right end cover assembly 7 mainly comprises a right end cover 16, a right thrust plate 17 and an adjusting shim 18. The right thrust plate 17 is fastened to the right end cover 16 by screws, and the right end cover 16 and the adjustment washer 16 are fixed to the upper and lower cases by screws. The axial float clearance of the camshaft is controlled by adjusting the number of the adjusting shims.
The left end and the right end of the box body are respectively provided with a first throttling screw plug 13 and a second throttling screw plug 15 which are used for controlling the amount of lubricating oil flowing into the left thrust plate 10 and the right thrust plate 17.
Referring to fig. 4 and 5, the upper case 2 is provided with a lubricant passage for lubricating the high-pressure oil pump, the bearing bush assembly, the left and right thrust bearings, and a mixed oil passage for collecting the high-pressure oil pump. Specifically, the upper case 2 is provided therein with a transverse lubricating oil passage 100 which is connected forwardly to each of the high-pressure oil pump mounting holes through oil passages 104, respectively, for feeding lubricating oil into the single high-pressure oil pump mounting hole to provide lubrication thereto. The upper box body annular groove 102 is communicated downwards through the first oil duct 101 of the upper box body, so that lubricating oil enters the bearing bush through the hole in the bearing bush assembly, a lubricating oil film is formed under the high-speed rotation of the camshaft, and the camshaft is supported.
The flow of oil to the left and right of the tank is as follows:
one path of lubricating oil enters a first oil duct 101 of an upper box body through a lubricating oil duct 100, then enters an annular groove 102 of the upper box body, enters a first oil duct 105 of a left end cover, is regulated by a first throttling screw plug 13, then enters a second oil duct 106 of the left end cover, and then enters a third oil duct 107 of the left end cover to provide lubrication for a left thrust bearing. The lubricated lubricating oil enters the left end cover fourth oil duct 108, the left end cover fifth oil duct 109, the left end cover sixth oil duct 110 and the bottom of the lower box body through the sealing ring groove 115.
One path of lubricating oil enters the first oil duct 101 of the upper box body through the lubricating oil duct 100, then enters the annular groove 102 of the upper box body, then enters the third oil duct 114 of the upper box body on the right side, then enters the second oil duct 113 of the upper box body, and enters the annular groove 112 on the right side after being regulated by the second throttling screw plug to provide lubrication for the right thrust bearing. The lubricated oil returns to the bottom of the lower case through the lower case oil passage 111.
The lower box body 1 is provided with an oil return hole 103 for returning lubricating oil, and the lubricating oil above is collected to the oil return hole 103 at the bottom of the lower box body and flows back to the oil tank.
In addition, a transverse oil return channel 200 is further arranged inside the upper box body 2, and is respectively communicated with each high-pressure oil pump mounting hole through an oil return hole 201, so that mixed oil of the single high-pressure oil pumps returns to the oil return channel 200 through the oil return hole 201, and then returns to the mixed oil return tank through a pipeline.
In addition, the upper box body 2 is also provided with an observation window for observing the level of lubricating oil in the cam box and the contact part of the camshaft and a high-pressure oil pump moving part. The bottom of the lower box is designed to be a cambered surface, so that the lower box is convenient to clean.
In addition, for the mounting positioning of the case, the positioning key 8 is fastened to the lower case by screws. The cam box assembly is positioned on the test bed bottom plate through a positioning key and is fixed through foundation bolts. The cam shaft is connected with the motor flange through bolts to transmit torque.
The working principle of the invention is as follows:
the external torque is transmitted to the camshaft to drive the camshaft to do rotary motion, and the camshaft drives the guide piston assembly of the single high-pressure oil pump to do up-and-down reciprocating motion, so that the oil supply function of the single high-pressure oil pump is realized.
One path of lubricating oil enters a first oil channel 101 of the upper box body through a lubricating oil channel 100, then enters an annular groove 102 of the upper box body, enters the inside of a bearing bush through a hole in a bearing bush assembly, and forms a lubricating oil film under the high-speed rotation of the camshaft, so that the camshaft is supported.
One path of lubricating oil enters the mounting hole of the single high-pressure oil pump through the lubricating oil passage 100 and the oil passage 104 to provide lubrication for the single high-pressure oil pump.
One path of lubricating oil enters a first oil duct 101 of the upper box body through a lubricating oil duct 100, then enters an annular groove 102 of an annular groove of the upper box body, enters a first oil duct 105 of the left end cover, enters a second oil duct 106 of the left end cover after being regulated by a first throttling screw plug 13, and then enters a third oil duct 107 of the left end cover to provide lubrication for the left thrust bearing. The lubricated lubricating oil enters the left end cover fourth oil duct 108 through the sealing ring groove 115, enters the left end cover fifth oil duct 109, enters the left end cover sixth oil duct 110 and returns to the bottom of the lower box body.
One path of lubricating oil enters the first oil duct 101 of the upper box body through the lubricating oil duct 100, then enters the annular groove 102 of the upper box body, enters the third oil duct 114 of the upper box body, enters the second oil duct 113 of the upper box body, and enters the annular groove 112 to provide lubrication for the right thrust bearing after being regulated by the second throttling screw plug. The lubricated oil passes through the lower case oil passage 111 and enters back to the bottom of the lower case.
The oil collected to the bottom of the lower tank returns to the oil tank through an oil return hole 103.
The mixed oil return hole 201 of the single high-pressure oil pump enters the return oil passage 200 and then returns to the mixed oil return tank through a pipeline.

Claims (7)

1. The utility model provides a large-scale high-pressure oil pump cam box subassembly, includes box, camshaft, left end cover subassembly, right end cover subassembly and axle bush subassembly, its characterized in that:
the box body is divided into a lower box body and an upper box body;
the upper box body is internally provided with a high-pressure oil pump mounting hole for mounting the high-pressure oil pump, and a reverse threaded sleeve is arranged in a bolt hole for connecting and fastening the high-pressure oil pump on the upper box body and is used for fastening the high-pressure oil pump through a bolt; the upper box body is internally provided with a lubricating oil duct for lubricating a high-pressure oil pump, a bearing assembly, a left thrust plate and a right thrust plate, and is also provided with a mixed oil return hole for collecting the mixed oil of the high-pressure oil pump and leading the mixed oil out of an oil tank;
the lower box body is assembled below the upper box body, and bearing bush supporting holes are formed in the left end, the right end and the middle of the lower box body and the upper box body; the lower box body is provided with an oil return hole for lubricating oil and is communicated with a lubricating oil duct of the upper box body;
the bearing bush assembly is arranged in a bearing bush supporting hole, is divided into an upper bush and a lower bush, is positioned by a pin and is fastened together by a screw;
the camshaft is radially supported and mounted in the box body through the bearing bush assembly, and the left end of the camshaft extends out of the box body and is used for being connected with a motor;
and the left end cover assembly and the right end cover assembly are respectively arranged at the outer sides of the bearing bush supporting holes at the left end and the right end of the upper box body and the lower box body for sealing.
2. The large-scale high-pressure oil pump cam box assembly according to claim 1, wherein the left end cover assembly comprises a left end cover, a left thrust plate and a sealing ring, wherein the left thrust plate is assembled on the left end cover, the left end cover is assembled on the left end of the upper box body and the left end of the lower box body, the sealing ring is assembled in the left end cover and is in clearance fit with the camshaft, and after the pressure of axially flowing lubricating oil is relieved through a ring groove on the sealing ring, the axially flowing lubricating oil flows back to the bottom of the lower box body shell through an oil passage of the left end cover.
3. The large high-pressure oil pump cam box assembly according to claim 1, wherein the right end cover assembly comprises a right end cover, a right thrust plate and an adjusting shim; the right thrust plate is assembled on the right end cover, the right end cover and the adjusting gaskets are arranged at the right ends of the upper box body and the lower box body, and the axial movement amount of the camshaft is controlled by adjusting the number of the adjusting gaskets.
4. The large-sized high-pressure oil pump cam box assembly according to claim 1, 2 or 3, wherein the threaded sleeve is positioned by a screw mounted on the upper box body, and a plug screw is mounted below the threaded sleeve.
5. The large-scale high-pressure oil pump cam box assembly according to claim 1, 2 or 3, wherein a transverse lubricating oil channel is arranged in the upper box body, is respectively communicated with each high-pressure oil pump mounting hole forwards through an oil channel, and is used for feeding lubricating oil into the single high-pressure oil pump mounting hole to provide lubrication for the single high-pressure oil pump mounting hole; the lubricating oil inlet and the lubricating oil outlet are respectively communicated with the upper box body annular groove downwards through the upper box body oil passage, so that lubricating oil enters the bearing bush through the hole in the bearing bush assembly, a lubricating oil film is formed under the high-speed rotation of the camshaft, and the camshaft is supported.
6. The large-scale high-pressure oil pump cam box assembly according to claim 5, wherein the upper box body is provided with two paths of lubricating oil, one path of lubricating oil enters the first oil passage of the upper box body through the transverse lubricating oil passage, then enters the annular groove of the upper box body, enters the first oil passage of the left end cover, enters the second oil passage of the left end cover after being regulated by the first throttling screw plug, and then enters the third oil passage of the left end cover to provide lubrication for the left thrust bearing; lubricating oil after lubrication enters a fourth oil duct of the left end cover, a fifth oil duct of the left end cover, a sixth oil duct of the left end cover and returns to the bottom of the lower box body through a sealing ring groove;
the other path of lubricating oil enters the first oil duct of the upper box body through the transverse lubricating oil duct, then enters the annular groove of the upper box body, enters the second oil duct of the upper box body, enters the third oil duct of the upper box body, and enters the annular groove to provide lubrication for the right thrust bearing after being regulated by the second throttling screw plug; the lubricated lubricating oil returns to the bottom of the lower box body through the oil passage of the lower box body;
and the lubricating oil collected to the bottom of the lower box body flows back to the oil box through the lubricating oil return hole.
7. The large-scale high-pressure oil pump cam box assembly according to claim 1, 2 or 3, wherein a transverse oil return passage is further provided inside the upper box body, and is respectively communicated with each high-pressure oil pump mounting hole through an oil return hole, so that the mixed oil of the single high-pressure oil pumps returns to the oil return passage through the oil return hole and then returns to the mixed oil return box through a pipeline.
CN202111517684.9A 2021-12-13 2021-12-13 Cam box assembly of large high-pressure oil pump Active CN114198229B (en)

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Application Number Priority Date Filing Date Title
CN202111517684.9A CN114198229B (en) 2021-12-13 2021-12-13 Cam box assembly of large high-pressure oil pump

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Application Number Priority Date Filing Date Title
CN202111517684.9A CN114198229B (en) 2021-12-13 2021-12-13 Cam box assembly of large high-pressure oil pump

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CN114198229A true CN114198229A (en) 2022-03-18
CN114198229B CN114198229B (en) 2024-04-26

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Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011611A1 (en) * 1978-11-10 1980-05-28 Friedmann & Maier Aktiengesellschaft Fuel injection system for internal combustion engines
JPH07269444A (en) * 1994-03-29 1995-10-17 Yamaha Motor Co Ltd High pressure fuel pump
JP2000265917A (en) * 1999-03-11 2000-09-26 Yanmar Diesel Engine Co Ltd Structure of fuel injection pump
JP2003003813A (en) * 2001-06-25 2003-01-08 Kawasaki Heavy Ind Ltd Lubricating structure of engine and pipe for lubrication
WO2012065569A1 (en) * 2010-11-18 2012-05-24 Robert Bosch Gmbh High-pressure fuel pump
CN105134440A (en) * 2015-08-20 2015-12-09 辽宁新风企业集团有限公司 Single-cylinder high-pressure oil pump assembly of improved structure for diesel engine
CN107387279A (en) * 2017-07-31 2017-11-24 成都威特电喷有限责任公司 High voltage common rail pump camshaft lubrication system
CN107420239A (en) * 2017-07-31 2017-12-01 成都威特电喷有限责任公司 Single plunger high-pressure oil pump
CN107781085A (en) * 2017-10-10 2018-03-09 重庆电子工程职业学院 A kind of automobile injection pump assembly structure
CN210317424U (en) * 2019-09-09 2020-04-14 哈尔滨东安汽车发动机制造有限公司 Camshaft cover body structure with high-pressure oil pump mounting seat
CN112523833A (en) * 2020-12-17 2021-03-19 浙江钱江摩托股份有限公司 Lubricating structure of motorcycle engine
CN112780470A (en) * 2020-12-10 2021-05-11 重庆红江机械有限责任公司 Common rail type high-pressure fuel injection pump for marine high-speed diesel engine

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0011611A1 (en) * 1978-11-10 1980-05-28 Friedmann & Maier Aktiengesellschaft Fuel injection system for internal combustion engines
JPH07269444A (en) * 1994-03-29 1995-10-17 Yamaha Motor Co Ltd High pressure fuel pump
JP2000265917A (en) * 1999-03-11 2000-09-26 Yanmar Diesel Engine Co Ltd Structure of fuel injection pump
JP2003003813A (en) * 2001-06-25 2003-01-08 Kawasaki Heavy Ind Ltd Lubricating structure of engine and pipe for lubrication
WO2012065569A1 (en) * 2010-11-18 2012-05-24 Robert Bosch Gmbh High-pressure fuel pump
CN105134440A (en) * 2015-08-20 2015-12-09 辽宁新风企业集团有限公司 Single-cylinder high-pressure oil pump assembly of improved structure for diesel engine
CN107387279A (en) * 2017-07-31 2017-11-24 成都威特电喷有限责任公司 High voltage common rail pump camshaft lubrication system
CN107420239A (en) * 2017-07-31 2017-12-01 成都威特电喷有限责任公司 Single plunger high-pressure oil pump
CN107781085A (en) * 2017-10-10 2018-03-09 重庆电子工程职业学院 A kind of automobile injection pump assembly structure
CN210317424U (en) * 2019-09-09 2020-04-14 哈尔滨东安汽车发动机制造有限公司 Camshaft cover body structure with high-pressure oil pump mounting seat
CN112780470A (en) * 2020-12-10 2021-05-11 重庆红江机械有限责任公司 Common rail type high-pressure fuel injection pump for marine high-speed diesel engine
CN112523833A (en) * 2020-12-17 2021-03-19 浙江钱江摩托股份有限公司 Lubricating structure of motorcycle engine

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