CN105952562A - Composite high-pressure common rail pump for single cylinder diesel engine - Google Patents
Composite high-pressure common rail pump for single cylinder diesel engine Download PDFInfo
- Publication number
- CN105952562A CN105952562A CN201610440921.9A CN201610440921A CN105952562A CN 105952562 A CN105952562 A CN 105952562A CN 201610440921 A CN201610440921 A CN 201610440921A CN 105952562 A CN105952562 A CN 105952562A
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- China
- Prior art keywords
- oil
- common rail
- single cylinder
- pump
- plunger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002131 composite material Substances 0.000 title abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000009825 accumulation Methods 0.000 claims description 13
- 230000013011 mating Effects 0.000 claims description 11
- 206010008469 Chest discomfort Diseases 0.000 claims description 8
- 238000003032 molecular docking Methods 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 7
- 239000007924 injection Substances 0.000 abstract description 7
- 230000001131 transforming effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 114
- 239000000446 fuel Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
-
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
-
- 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
- F02M59/46—Valves
- F02M59/462—Delivery valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/16—Sealing of fuel injection apparatus not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
A composite high-pressure common rail pump for a single cylinder diesel engine comprises a single cylinder common rail energy accumulator and a single cylinder common rail pump body which are fixedly connected into a whole in a sealed manner. An oil pump and a common rail are integrated, the installing manner of the oil pump and the diesel engine is not changed, the oil pump can be directly installed and used on an existing diesel engine, and an installing hole system of an engine body of the diesel engine does not need to be additionally machined. Meanwhile, a common rail pipe connecting the common rail with the oil pump is eliminated, the size of the high-pressure common rail pump for the single cylinder diesel engine can be reduced to the maximum degree, a proportional electromagnetic valve in the prior art is replaced with a high-speed electromagnetic valve, and the cost can be reduced to 50-60 yuan/piece. Common rail electronic injection improving and transforming can be directly conducted on the existing diesel engine, and the single cylinder diesel engine can reach the national fourth-stage emission standard through the composite high-pressure common rail pump.
Description
Technical field
The present invention relates to the combustion system of single cylinder diesel, particularly relate to the high pressure co-rail system of single cylinder diesel
Middle common rail pump assembly.
Background technology
Single cylinder diesel is because of reasons such as it are cheap, light for a long time, be widely used in stand-by power supply,
Agricultural machinery, water lifting machinery, engineering machinery, the every profession and trade such as peculiar to vessel, in recent years due to the row of single cylinder diesel
Zoom level falls behind, and the raising of national environmental protection emission request, domestic market share is progressively compressed；According to domestic
Combustion engine TIA data, within 2015, China's single cylinder diesel yield is at about 4,000,000,800 during peak value
About ten thousand, single cylinder engine recoverable amount is at about 20,000,000；On the one hand, single cylinder diesel industry entirety discharge
Level falls behind, and causes it to discharge substantial amounts of harmful gas every year in air；On the other hand, discharge water is fallen behind
Putting down makes it gradually be repelled by market, is badly in need of the update of technology.
China will carry out non-rice habitats state three discharge standard the end of the year 2016 comprehensively, it is contemplated that within 2018, will implement non-
Road state 4 discharge standard, wherein single cylinder diesel is just within the scope of the restriction of this regulation.
After Abgasgesetz upgrading, the common rail system of single cylinder diesel will become Single Cylinder Diesel Engine Emission technology upgrading
Essence solution；In published single cylinder diesel common rail system technical scheme, Machinery Ministry subpackage
Containing common rail pump, common rail pipe, the big parts of fuel injector three, high-pressure oil pipe between these three big parts, is used to connect.Though
The technical scheme of right this replacement is capable of the high-pressure common rail EFI of single cylinder diesel, but, existing list
The common rail system cost of cylinder diesel is the highest, and volume is the biggest, it is impossible to directly apply on existing single cylinder diesel.
Patent of invention 201610025226.6 discloses " integrated diesel machine high-pressure common rail fuel oil injection system
System high-pressure fuel injection pump assembly ", it still continues routine techniques thinking, and system mechanics part is divided into three big parts,
High-pressure oil pipe is used to connect each other；In the invention, the tappet body in described high-pressure fuel injection pump assembly guides
The body relying on diesel engine, i.e. diesel engine must redesign, and needs to leave special pilot hole on body,
The body requirement of diesel engine redesigns processing, and whole machining production line must put into again, puts into the biggest；
Meanwhile, the fuel-flow control mode adoption rate electromagnetic valve inlet metering of this high-pressure fuel injection pump assembly controls, this
The price of electromagnetic valve is higher.
" common-rail high-pressure pump of pump rail one ", institute is disclosed in utility model patent ZL201120052744.X
State oil pump and be applied to multi-cylinder diesel engine oil supply system；The driving of its oil pump is performed by self camshaft, oil pump body
Long-pending huge, single cylinder diesel cannot directly be applied, can not quote, former at this utility model mesohigh
Part plunger bushing uses the design of indent end face structure, manufacturability extreme difference, has both improve the technology difficulty of processing, assembling
Degree, increases cost, can not support the use with the body of existing single cylinder diesel, to existing one-cylinder diesel again
The substituting extreme difference of the injection pump of machine.Existing single cylinder diesel produces commercial city and does not approves, less accepts.
Summary of the invention:
It is an object of the invention to provide a kind of single cylinder diesel combined type high voltage common rail pump, it is according to existing
Single cylinder diesel feature design, have strong adaptability, structure through gathering, the deep feature of low cost, Technology Potential.
The technical scheme that the present invention takes:
A kind of single cylinder diesel combined type high voltage common rail pump, is characterized in that: include single cylinder common rail accumulator and
After single cylinder common rail pump, the oil inlet end of single cylinder common rail accumulator and the oil outlet end docking of single cylinder common rail pump hermetically admittedly
Surely link into an integrated entity.
Further, described single cylinder common rail accumulator includes common rail body, level pressure oil road, pressure accumulation cavity volume, level pressure
Oil input channel, pressure transducer and unidirectional go out oil pocket, pressure accumulation cavity volume is arranged in common rail body, level pressure oil road,
Level pressure oil input channel, pressure transducer with unidirectional go out oil pocket be all connected with pressure accumulation cavity volume, wherein, level pressure is fuel-displaced
Road, level pressure oil input channel and unidirectional go out oil pocket be coaxially disposed；Described single cylinder common rail pump include the pump housing, tappet body,
Under plunger spring, seat, plunger spring, plunger, plunger guide set, radial direction seal ring, high pressure chest, oil duct divide
Orchestration, steel ball, inlet valve spring, delivery valve seat, fuel-displaced spool, oil outlet valve spring, oil outlet valve spring seat
And high-speed electromagnetic valve, it is provided with oil outlet at the center of delivery valve seat, is provided with steel ball in the lower surface of delivery valve seat
Cavity volume, is provided with upside oil input channel in the side of delivery valve seat；It is provided with upper end open at the center of oil duct allotter
Oil-feed blind hole, be provided with in the side of oil duct allotter downside oil input channel, in the downside oil-feed of oil duct allotter
Lower end, road is provided with horizontal oil input channel, is provided with vertical oil duct between the upper surface of oil duct allotter and lower surface,
Be provided with the recessed oil pit of oil-feed in the lower surface of oil duct allotter, vertical oil duct oil pit recessed with oil-feed is connected；
Further, the described pump housing include butt hole, threaded connection hole, mating holes, transitional pore, lower pilot hole,
Electromagnetic valve installing hole and turn to oil input channel, butt hole, threaded connection hole, mating holes, transitional pore, lower guiding
Hole is the most sequentially coaxially distributed；Plunger guide set is rotated with in the threaded connection hole of the pump housing, and oil duct distributes
Device and delivery valve seat are arranged in butt hole, and delivery valve seat is positioned at the top of oil duct allotter, and steel ball is arranged
Between delivery valve seat and oil duct allotter, delivery valve core retainer plate is contained in the oil outlet of delivery valve seat, inlet valve
Spring is arranged between fuel-displaced spool lower end and steel ball, and the lower end of oil outlet valve spring is sleeved on the upper of fuel-displaced spool
Section, in the endoporus of the upper end that oil outlet valve spring cover for seat is contained in oil outlet valve spring, under plunger spring, cover for seat is contained in post
Beyond the Great Wall and be positioned at the lower end of plunger, plunger bushing is contained in the pilot hole of plunger guide set, and plunger spring is arranged on
Under plunger guide set and plunger spring between seat, tappet body is sleeved in the lower pilot hole of the pump housing, and by spacing
Sell the lifting travel to tappet body and carry out spacing, the lower end of plunger and very cylinders contact.
Further, between plunger guide set and the mating holes of the pump housing, it is provided with radial direction seal ring.
Further, between plunger guide set and the mating holes of the pump housing, compartment of terrain is provided with two radial direction seal rings.
Further, the oil inlet end of single cylinder common rail accumulator and the oil outlet end docking structure of single cylinder common rail pump are, single
The oil inlet end of cylinder common rail accumulator is sleeved in the butt hole of the pump housing.
Further, the oil inlet end of single cylinder common rail accumulator and the oil outlet end of single cylinder common rail pump seal docking structure
For, the oil inlet end of single cylinder common rail accumulator is sleeved in the butt hole of the pump housing, docking of common rail body and the pump housing
Place is provided with sealing structure.
Further, the sealing structure that common rail body is provided with at joint with the pump housing is, exists at common rail body and the pump housing
End-face seal ring it is provided with between interface.
Further, the sealing structure that common rail body is provided with at joint with the pump housing is, at single cylinder common rail accumulator
Oil inlet end cylindrical and the butt hole of the pump housing between be provided with radial direction seal ring.
Its work process is as follows:
Oil-absorbing process: when camshaft is in descending branch, plunger spring drive seat under tappet body and plunger spring,
Plunger DL synchronization, now high pressure chest volume increases and forms negative pressure, the recessed oil of oil-feed of oil duct allotter lower end
Hole is connected with the cavity volume of steel ball by vertical oil duct, and now high-speed electromagnetic valve energising is in open mode, combustion
Oil, by turning to oil input channel, high-speed electromagnetic valve to enter in the butt hole of the pump housing, then passes through the upper of delivery valve seat
The horizontal oil input channel of downside oil input channel entrance of side oil input channel and oil duct allotter and oil-feed blind hole push steel ball open, then
Enter steel ball cavity volume and suck high pressure chest from vertical oil duct；
Force feed process: when camshaft is in ascent stage, tappet body promotes and moves on plunger lower end, plunger spring
Being compressed under the effect of seat under plunger spring, now, high pressure chest smaller volume, oil pressure raises, high pressure chest
In the fuel oil attracted deposit then enter steel ball cavity volume from the recessed oil pit of oil-feed, vertical oil duct, steel ball is at pressurized fuel
Being pressed together on the opening part of oil-feed blind hole effect lower seal, close oil-feed blind hole, pressurized fuel promotes delivery valve
Move on core, so that fuel-displaced spool is in opening, the pressurized fuel level pressure by single cylinder common rail accumulator
Oil input channel enters in pressure accumulation cavity volume, and pressure transducer carries out observing and controlling to oil pressure in pressure accumulation cavity volume, when oil pressure reaches
During predetermined value, input fueling injection equipment from level pressure oil road, complete force feed process.
The present invention is by oil pump and the integration of common rail, and oil pump is constant with the mounting means of diesel engine, can be existing
Use it is mounted directly, it is not necessary to the installing hole system of the body of diesel engine is additionally processed on diesel engine, with
Time cancel the common rail pipe connecting common rail and oil pump, moreover it is possible to reduce single cylinder diesel high voltage common rail pump substantially
Volume, uses high-speed electromagnetic valve to replace proportional solenoid in prior art, and cost can reduce by 10%～15%；
In the present invention, the lifting moving of tappet body guides and location structure is arranged in pump housing endoporus, to diesel oil
Machine body is without particular design requirement；It can directly carry out common rail EFI Promotion Transformation to existing diesel, for
It is the most economically viable technical scheme that existing single cylinder diesel carries out state three standard environment protection emission, uses this
Bright single cylinder diesel can be made to reach state four discharge standard.
In the present invention high voltage device plunger guide set is carried out separate design with the pump housing and become multistage cylindric knot
Structure, this structure circumference homogenizing is symmetrical, beneficially the high accuracy processing of later stage plunger bushing mesopore；Compare more existing
Polymorphic structure in technology, needs to do counterweight and processes, and technology difficulty is substantially reduced；Tappet body, plunger spring
Etc. movement parts, interior pack arrangement designs, it is to avoid produce with parts and components of diesel engine collide, interfere, affect can
Can property.The compact conformation of the present invention, low cost, good manufacturability, stable performance, be applicable to single cylinder diesel
The high pressure co-rail system oil feed pump assembly used.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of single cylinder common rail accumulator in the present invention；
Fig. 3 is the structural representation of single cylinder common rail pump；
Fig. 4 is the structural representation of the pump housing；
Fig. 5 is the structural representation of delivery valve seat；
Fig. 6 is the structural representation of oil duct allotter；
In figure: 1-single cylinder common rail accumulator；2-single cylinder common rail pump；3-end-face seal ring；11-common rail body；
12-level pressure oil road；13-pressure accumulation cavity volume；14-level pressure oil input channel；15-pressure transducer；16-unidirectional go out oil pocket；
17-oil inlet end；The 21-pump housing；22-tappet body；Seat under 23-plunger spring；24-plunger spring；25-plunger；
26-plunger guide set；27-radial direction seal ring；28-high pressure chest；29-oil duct allotter；30-steel ball；31-enters
Fuel tap spring；32-delivery valve seat；The fuel-displaced spool of 33-；34-oil outlet valve spring；35-oil outlet valve spring seat；36-
High-speed electromagnetic valve；37-spacer pin；The spacing jump ring of 38-；211-butt hole；212-threaded connection hole；213-joins
Close hole；214-transitional pore；Pilot hole under 215-；216-electromagnetic valve installing hole；217-turns to oil input channel；
291-oil-feed blind hole；Oil input channel on the downside of 292-；The horizontal oil input channel of 293-；The vertical oil duct of 294-；295-oil-feed is recessed
Oil pit；321-oil outlet；322-steel ball cavity volume；Oil input channel on the upside of 323-.
Detailed description of the invention:
The detailed description of the invention of the present invention is described below in conjunction with the accompanying drawings:
Embodiment 1: a kind of single cylinder diesel combined type high voltage common rail pump, as shown in Fig. 1～Fig. 6, it by
Single cylinder common rail accumulator 1 and single cylinder common rail pump 2 form, and single cylinder common rail accumulator 1 and single cylinder common rail pump 2 are led to
Cross securing member and end-face seal ring 3 is fixedly connected into one；Described single cylinder common rail accumulator 1 includes common rail body
11, level pressure oil road 12, pressure accumulation cavity volume 13, level pressure oil input channel 14, pressure transducer 15 and unidirectional fuel-displaced
Chamber 16, pressure accumulation cavity volume 13 is arranged in common rail body 11, level pressure oil road 12, level pressure oil input channel 14, pressure
Sensor 15 with unidirectional go out oil pocket 16 be all connected with pressure accumulation cavity volume 13, wherein, level pressure oil road 12, fixed
Be pressed into oil duct 14 and unidirectional go out oil pocket 16 be coaxially disposed；Described single cylinder common rail pump 2 includes the pump housing 21, tappet
Seat 23, plunger spring 24, plunger 25, plunger guide set 26, radial direction seal ring under body 22, plunger spring
27, high pressure chest 28, oil duct allotter 29, steel ball 30, inlet valve spring 31, delivery valve seat 32, fuel-displaced
Spool 33, oil outlet valve spring 34, oil outlet valve spring seat 35 and high-speed electromagnetic valve 36, at delivery valve seat 32
Center is provided with oil outlet 321, is provided with steel ball cavity volume 322 in the lower surface of delivery valve seat 32, at delivery valve seat
The side of 32 is provided with upside oil input channel 323；The oil-feed being provided with upper end open at the center of oil duct allotter 29 is blind
Hole 291, be provided with in the side of oil duct allotter 29 downside oil input channel 292, in the downside of oil duct allotter 29
Oil input channel 292 lower end is provided with horizontal oil input channel 293, between the upper surface and lower surface of oil duct allotter 29
It is provided with vertical oil duct 294, is provided with the recessed oil pit of oil-feed 295, vertical oil duct in the lower surface of oil duct allotter 29
294 oil pits 295 recessed with oil-feed are connected；The described pump housing 21 include butt hole 211, threaded connection hole 212,
Mating holes 213, transitional pore 214, lower pilot hole 215, electromagnetic valve installing hole 216 and turn to oil input channel 217,
Butt hole 211, threaded connection hole 212, mating holes 213, transitional pore 214 and lower pilot hole 215 to
Under be sequentially coaxially distributed；Plunger guide set 26 is rotated with in the threaded connection hole 212 of the pump housing 21, and oil duct divides
Orchestration 29 and delivery valve seat 32 are arranged in butt hole 211, and delivery valve seat 32 is positioned at oil duct allotter 29
Top, steel ball 30 is arranged between delivery valve seat 32 and oil duct allotter 29, and fuel-displaced spool 33 is set with
In the oil outlet 321 of delivery valve seat 32, inlet valve spring 31 is arranged on fuel-displaced spool 33 lower end and steel ball
Between 30, the lower end of oil outlet valve spring 34 is sleeved on the epimere of fuel-displaced spool 33, and oil outlet valve spring seat 35 overlaps
In the endoporus of the upper end being contained in oil outlet valve spring 34, under plunger spring, seat 23 is sleeved on plunger 25 and is positioned at
The lower end of plunger 25, plunger 25 is sleeved in the pilot hole of plunger guide set 26, and plunger spring 24 is arranged
Under plunger guide set 26 and plunger spring between seat 23, tappet body 22 is sleeved on the lower guiding of the pump housing 21
In hole 215, and being carried out spacing by spacer pin 37 to the lifting travel of tappet body 22, spacer pin 37 is by spacing
Jump ring 38 is spacing, and the lower end of plunger 25 contacts with tappet body 22；At plunger guide set 26 and the pump housing 21
Two radial direction seal rings 27 it are provided with between mating holes 213.
Embodiments of the present invention are a lot, if use with same principle of the present invention other etc. function replacement
All schemes all belong to protection scope of the present invention.
Claims (9)
1. a single cylinder diesel combined type high voltage common rail pump, is characterized in that: include single cylinder common rail accumulation of energy
Device (1) and single cylinder common rail pump (2), the oil inlet end of single cylinder common rail accumulator (1) and single cylinder common rail pump (2)
Oil outlet end docking after be fixedly connected into hermetically one.
The most according to claim 1, single cylinder diesel combined type high voltage common rail pump, is characterized in that: institute
State single cylinder common rail accumulator (1) include common rail body (11), level pressure oil road (12), pressure accumulation cavity volume (13),
Level pressure oil input channel (14), pressure transducer (15) and unidirectional go out oil pocket (16), pressure accumulation cavity volume (13) sets
Put in common rail body (11), level pressure oil road (12), level pressure oil input channel (14), pressure transducer (15)
With unidirectional go out oil pocket (16) be all connected with pressure accumulation cavity volume (13), wherein, level pressure oil road (12), fixed
Be pressed into oil duct (14) and unidirectional go out oil pocket (16) be coaxially disposed.
The most according to claim 1, single cylinder diesel combined type high voltage common rail pump, is characterized in that: described
Single cylinder common rail pump (2) includes seat (23), plunger bullet under the pump housing (21), tappet body (22), plunger spring
Spring (24), plunger (25), plunger guide set (26), radial direction seal ring (27), high pressure chest (28), oil
Road allotter (29), steel ball (30), inlet valve spring (31), delivery valve seat (32), fuel-displaced spool (33),
Oil outlet valve spring (34), oil outlet valve spring seat (35) and high-speed electromagnetic valve (36), in delivery valve seat (32)
Center be provided with oil outlet (321), be provided with steel ball cavity volume (322) in the lower surface of delivery valve seat (32),
Upside oil input channel (323) it is provided with in the side of delivery valve seat (32)；Center in oil duct allotter (29)
It is provided with the oil-feed blind hole (291) of upper end open, is provided with downside oil input channel in the side of oil duct allotter (29)
(292), it is provided with horizontal oil input channel (293) in downside oil input channel (292) lower end of oil duct allotter (29),
Between the upper surface and lower surface of oil duct allotter (29), it is provided with vertical oil duct (294), distributes at oil duct
The lower surface of device (29) is provided with the recessed oil pit of oil-feed (295), vertical oil duct (294) and the recessed oil pit of oil-feed (295)
It is connected；The described pump housing (21) include butt hole (211), threaded connection hole (212), mating holes (213),
Transitional pore (214), lower pilot hole (215), electromagnetic valve installing hole (216) and turn to oil input channel (217),
Butt hole (211), threaded connection hole (212), mating holes (213), transitional pore (214), lower pilot hole
(215) the most sequentially coaxially it is distributed；The screw thread that plunger guide set (26) is rotated with at the pump housing (21) connects
Connecing in hole (212), oil duct allotter (29) and delivery valve seat (32) are arranged in butt hole (211),
And delivery valve seat (32) is positioned at the top of oil duct allotter (29), steel ball (30) is arranged on delivery valve seat
And between oil duct allotter (29), fuel-displaced spool (33) is sleeved on going out of delivery valve seat (32) (32)
In oilhole (321), inlet valve spring (31) be arranged on fuel-displaced spool (33) lower end and steel ball (30) it
Between, the lower end of oil outlet valve spring (34) is sleeved on the epimere of fuel-displaced spool (33), oil outlet valve spring seat (35)
In the endoporus of the upper end being sleeved on oil outlet valve spring (34), under plunger spring, seat (23) is sleeved on plunger (25)
Going up and be positioned at the lower end of plunger (25), plunger (25) is sleeved in the pilot hole of plunger guide set (26),
Plunger spring (24) is arranged under plunger guide set (26) and plunger spring between seat (23), tappet body
(22) it is sleeved in the lower pilot hole (215) of the pump housing (21), and by spacer pin (37) to tappet body (22)
Lifting travel carry out spacing, the lower end of plunger (25) contacts with tappet body (22).
The most according to claim 3, single cylinder diesel combined type high voltage common rail pump, is characterized in that: at post
It is provided with radial direction seal ring (27) between plug fairlead (26) and the mating holes (213) of the pump housing (21).
The most according to claim 4, single cylinder diesel combined type high voltage common rail pump, is characterized in that: at post
It is provided with two radial directions between plug fairlead (26) and the mating holes (213) of the pump housing (21) axially spacedly
Sealing ring (27).
The most according to claim 1, single cylinder diesel combined type high voltage common rail pump, is characterized in that: single cylinder
The oil inlet end (17) of common rail accumulator (1) and the oil outlet end docking structure of single cylinder common rail pump (2) be: single
The oil inlet end (17) of cylinder common rail accumulator (1) is sleeved in the butt hole (211) of the pump housing (21).
The most according to claim 6, single cylinder diesel combined type high voltage common rail pump, is characterized in that: single cylinder
The oil inlet end (17) of common rail accumulator (1) and the oil outlet end of single cylinder common rail pump (2) seal docking structure,
The oil inlet end (17) of single cylinder common rail accumulator (1) is sleeved in the butt hole (211) of the pump housing (21),
Joint at common rail body 11 with the pump housing 21 is provided with sealing structure.
The most according to claim 7, single cylinder diesel combined type high voltage common rail pump, is characterized in that: common rail
Body (11) and the pump housing (21) in the sealing structure of joint are, at common rail body (11) and the pump housing (21)
End-face seal ring (3) it is provided with between interface.
The most according to claim 7, single cylinder diesel combined type high voltage common rail pump, is characterized in that: common rail
The sealing structure that body (11) is provided with at joint with the pump housing (21) is, at single cylinder common rail accumulator (1)
It is provided with radial seal between the butt hole (211) of oil inlet end (17) cylindrical and the pump housing (21).
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| CN201610440921.9A CN105952562B (en) | 2016-06-18 | 2016-06-18 | Combined type high-pressure common rail pump for single-cylinder diesel engine |
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| CN201610440921.9A CN105952562B (en) | 2016-06-18 | 2016-06-18 | Combined type high-pressure common rail pump for single-cylinder diesel engine |
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| CN105952562B CN105952562B (en) | 2023-11-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109139321A (en) * | 2018-11-15 | 2019-01-04 | 珠海安瑾动力科技有限公司 | A kind of two logical oil valve components of high-pressure fuel-feed pump |
| CN109253004A (en) * | 2018-11-15 | 2019-01-22 | 珠海安瑾动力科技有限公司 | A kind of High Pressure Common-Rail Fuel Inject high-pressure fuel injection pump assembly |
| CN109268179A (en) * | 2018-10-23 | 2019-01-25 | 思达耐精密机电（常熟）有限公司 | A kind of switch electromagnetic valve formula single cylinder common rail pump of the head with pressure accumulation chamber |
| CN109763925A (en) * | 2019-01-30 | 2019-05-17 | 珠海安瑾动力科技有限公司 | A kind of high-pressure fuel-feed pump pump head component |
| CN109763926A (en) * | 2019-01-30 | 2019-05-17 | 珠海安瑾动力科技有限公司 | A kind of single cylinder diesel monomer common rail pump assembly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999043957A1 (en) * | 1997-10-29 | 1999-09-02 | Stanadyne Automotive Corp. | High capacity supply pump with simultaneous directly actuated plungers |
| CN1429986A (en) * | 2002-11-21 | 2003-07-16 | 上海内燃机研究所 | Method of changing oil injection speed of single cylinder direct spray diesel oil engine |
| CN102197211A (en) * | 2008-10-28 | 2011-09-21 | 罗伯特·博世有限公司 | High-pressure fuel pump for an internal combustion engine |
| CN202012427U (en) * | 2011-03-02 | 2011-10-19 | 无锡威孚高科技集团股份有限公司 | Common-rail high-pressure pump with integrated pump and rail |
| CN103277222A (en) * | 2013-06-21 | 2013-09-04 | 南车戚墅堰机车有限公司 | Arrangement structure of high-pressure common-rail fuel injection system on high-power diesel engine |
| CN203296990U (en) * | 2013-06-21 | 2013-11-20 | 南车戚墅堰机车有限公司 | Arrangement structure of high pressure common rail fuel injection system on high power diesel engine |
| CN204283693U (en) * | 2014-11-27 | 2015-04-22 | 重庆红江机械有限责任公司 | A kind of common rail system monomer-type Electrocontrolled high-pressure oil pump |
| CN104847554A (en) * | 2015-04-09 | 2015-08-19 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electric control unit pump for diesel machine |
| CN205744226U (en) * | 2016-06-18 | 2016-11-30 | 常州博瑞油泵油嘴有限公司 | A kind of single cylinder diesel combined type high voltage common rail pump |
-
2016
- 2016-06-18 CN CN201610440921.9A patent/CN105952562B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999043957A1 (en) * | 1997-10-29 | 1999-09-02 | Stanadyne Automotive Corp. | High capacity supply pump with simultaneous directly actuated plungers |
| CN1429986A (en) * | 2002-11-21 | 2003-07-16 | 上海内燃机研究所 | Method of changing oil injection speed of single cylinder direct spray diesel oil engine |
| CN102197211A (en) * | 2008-10-28 | 2011-09-21 | 罗伯特·博世有限公司 | High-pressure fuel pump for an internal combustion engine |
| CN202012427U (en) * | 2011-03-02 | 2011-10-19 | 无锡威孚高科技集团股份有限公司 | Common-rail high-pressure pump with integrated pump and rail |
| CN103277222A (en) * | 2013-06-21 | 2013-09-04 | 南车戚墅堰机车有限公司 | Arrangement structure of high-pressure common-rail fuel injection system on high-power diesel engine |
| CN203296990U (en) * | 2013-06-21 | 2013-11-20 | 南车戚墅堰机车有限公司 | Arrangement structure of high pressure common rail fuel injection system on high power diesel engine |
| CN204283693U (en) * | 2014-11-27 | 2015-04-22 | 重庆红江机械有限责任公司 | A kind of common rail system monomer-type Electrocontrolled high-pressure oil pump |
| CN104847554A (en) * | 2015-04-09 | 2015-08-19 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Electric control unit pump for diesel machine |
| CN205744226U (en) * | 2016-06-18 | 2016-11-30 | 常州博瑞油泵油嘴有限公司 | A kind of single cylinder diesel combined type high voltage common rail pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109268179A (en) * | 2018-10-23 | 2019-01-25 | 思达耐精密机电（常熟）有限公司 | A kind of switch electromagnetic valve formula single cylinder common rail pump of the head with pressure accumulation chamber |
| CN109139321A (en) * | 2018-11-15 | 2019-01-04 | 珠海安瑾动力科技有限公司 | A kind of two logical oil valve components of high-pressure fuel-feed pump |
| CN109253004A (en) * | 2018-11-15 | 2019-01-22 | 珠海安瑾动力科技有限公司 | A kind of High Pressure Common-Rail Fuel Inject high-pressure fuel injection pump assembly |
| CN109763925A (en) * | 2019-01-30 | 2019-05-17 | 珠海安瑾动力科技有限公司 | A kind of high-pressure fuel-feed pump pump head component |
| CN109763926A (en) * | 2019-01-30 | 2019-05-17 | 珠海安瑾动力科技有限公司 | A kind of single cylinder diesel monomer common rail pump assembly |
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