CN101285443B - Fuel pump driving device - Google Patents
Fuel pump driving device Download PDFInfo
- Publication number
- CN101285443B CN101285443B CN2008100886534A CN200810088653A CN101285443B CN 101285443 B CN101285443 B CN 101285443B CN 2008100886534 A CN2008100886534 A CN 2008100886534A CN 200810088653 A CN200810088653 A CN 200810088653A CN 101285443 B CN101285443 B CN 101285443B
- Authority
- CN
- China
- Prior art keywords
- fuel pump
- cam
- driving device
- pump driving
- axle
- 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.)
- Active
Links
Images
Abstract
A fuel-pump-driving device ( 20 ) drives a plunger ( 31 ) of a fuel pump ( 30 ) to perform a reciprocating motion to supply fuel to an internal combustion engine. The fuel-pump-driving device ( 20 ) comprises a cam ( 27 ) that drives the plunger ( 31 ) according to the rotation of a fuel-pump-driving sprocket ( 26 ). The fuel-pump-driving sprocket ( 26 ) meshes with a chain ( 7 A) which travels between a crank sprocket ( 3 ) and a valve-driving sprocket ( 5 A) of the engine. Since the fuel-pump-driving sprocket ( 26 ) can be located in a position detached from the valve-driving sprocket ( 5 A), the fuel-pump-driving device ( 20 ) has greater freedom of layout and the fuel pump ( 30 ) exhibits a better performance than in a case where the plunger ( 31 ) is driven by a cam that is fixed directly to the cam shaft ( 5 ) of the the valve-driving sprocket ( 5 A).
Description
Technical field
The present invention relates to a kind of to the used drive unit of the petrolift of internal-combustion engine fueling.
Background technique
The JP2005-036711A that Japan Patent office published in 2005 discloses a kind of petrolift to the internal-combustion engine fueling.
This internal-combustion engine comprises intake valve and exhaust valve, and adopts fixing mode to rotate along with the rotation of motor to open and close the camshaft of intake valve and exhaust valve.Crank and chain-wheel is fixed to camshaft, and the valve actuation sprocket wheel is fixed to camshaft.Thereby timing chain is sent to camshaft around crank and chain-wheel and valve driving sprocket wheel coiling with the rotating force of camshaft.The valve actuation cam is fixed to camshaft, thus when camshaft is rotated under the effect of the rotating force of camshaft opening/closing intake valve and exhaust valve.
Petrolift comprises the pressure chamber that is limited plunger.Valve tappet is fixed to plunger and keeps in touch with the petrolift driving cam, and this petrolift driving cam and valve actuation cam are fixed to camshaft jointly.
When power operation, camshaft rotation, the petrolift driving cam that is fixed to camshaft makes plunger carry out via valve tappet and moves back and forth, and makes pressure chamber alternately expand and shrinks.When pressure chamber expanded, fuel was inhaled into pressure chamber, and when pressure chamber shrank, the fuel in the pressure chamber was pressurized and enter the fuel channel of internal-combustion engine.
Summary of the invention
Because petrolift driving cam and valve actuation cam jointly are fixed to camshaft, so be used for the restriction that the space of pump driving cam can receive the layout of valve actuation cam and associated components.
In addition, owing to valve tappet is driven by the pump driving cam that is fixed to camshaft, so the fuel pump performance such as discharge pressure, depends on the rotating speed of camshaft.Therefore, the situation that petrolift can't satisfy desired properties can appear.
Therefore, the objective of the invention is to increase fuel pump driving device layout degrees of freedom and increase the fuel pump performance.
To achieve these goals, the present invention provides a kind of to the used pump drive of the petrolift of internal-combustion engine fueling.The ring-type moment of torsion transfer member that this internal-combustion engine comprises crankshaft, is fixed to the rotary driving part of crankshaft, rotates driven member and centers on rotary driving part and the rotation driven member is reeled.
Fuel pump driving device comprises the swirling fuel pump driver part that engages with rotary driving part and the ring-type moment of torsion transfer member of rotation between the driven member, and driving fuel pump when rotated.
Details of the present invention and other characteristics and advantage will describe with reference to accompanying drawing hereinafter.
Description of drawings
Fig. 1 is the front elevation that is provided with according to the critical component of the V-type internal combustion engine of petrolift of the present invention and fuel pump driving device.
Fig. 2 is the schematic representation of petrolift, and its operating principle is shown.
Fig. 3 is the perspective exploded view of fuel pump driving device.
Fig. 4 is the perspective view of fuel pump driving device that is assembled to the cylinder head of internal-combustion engine.
Fig. 5 is the side view of fuel pump driving device that is assembled to the cylinder head of internal-combustion engine.
Fig. 6 is the side view according to axle of the present invention, and the structure of oily passage is shown.
Fig. 7 is the sectional view that the line VII-VII along among Fig. 6 of said axle is done.
Fig. 8 is the cross section view of fuel pump driving device according to another embodiment of the present invention.
Fig. 9 is similar to Fig. 7, but another embodiment of the present invention is shown.
Embodiment
With reference to Fig. 1, the rotating force operation that fuel pump driving device 20 is transmitted by the timing chain 7A through V-type internal combustion engine, this timing chain is as the ring-type torque transfer member.
This internal-combustion engine comprises from cylinder block 1 outwardly directed crankshaft 2.Be fixed to the external part of crankshaft 2 as the crank and chain-wheel 3 of rotary driving part.A pair of cylinder head 4A and 4B are fixed to the upper end of cylinder block 1.The admission cam shaft 5 that is used to open and close intake valve is distinguished protruding with the exhaust cam shaft 6 that is used to open and close exhaust valve from each cylinder head 4A and 4B.The valve actuation sprocket wheel 5A that is used as the rotation driven member is fixed to the external part of admission cam shaft 5, and same valve actuation sprocket wheel 6A as the rotation driven member is fixed to the external part of exhaust cam shaft 6.
Thereby movable nutted rod 8B is assembled on the outer surface of cylinder block 1 slack-side in the face of timing chain 7A and 7B.Thereby nutted rod 8B is promoted by chain tensioning device 9 and applies the tensioning that lateral pressure is regulated timing chain 7A and 7B to timing chain 7A and 7B.
Oil sump 11 is fixed to the lower end of cylinder block 1.Guiding trestle 10 is fixed to the outer surface near crank and chain-wheel 3 of cylinder block 1, thereby prevents skidding of timing chain 7A and 7B.
Oil pump live axle 13 is protruding from oil sump 11.Oil pump driving sprocket wheel 14 is fixed to the external part of oil pump live axle 13.Another crank and chain-wheel 12 is fixed to the crankshaft 2 parallel with crank and chain-wheel 13.Chain 15 is reeled around sprocket wheel 12 and 14.Drive oil pump from crankshaft 2 via the rotating force that sprocket wheel 12,14 and chain 15 are passed to oil pump live axle 13 through crankshaft 2.Movable nutted rod 16 is assembled on the outer surface of oil sump 11, and contacts to regulate the tensioning of chain 15 with the slack-side of chain 15.
Fuel pump driving device 20 is arranged on the cylinder head 4A.More particularly, fuel pump driving device 20 is arranged on the downstream side with respect to timing chain 7A rotation direction of valve actuation sprocket wheel 5A.Here, valve actuation sprocket wheel 5A's with respect near the inboard the cylinder head 4B that is in, the downstream side of timing chain 7A rotation direction corresponding to cylinder head 4A.
With reference to Fig. 2, the petrolift 30 that is driven by fuel pump driving device 20 is the so-called plunger pumps of carrying out the plunger 31 that moves back and forth that are provided with.This plunger 31 is assembled among the cylinder 32A that is formed in the housing 32 to be free to slide.Adopt plunger 31 in cylinder 32A, to limit pressure chamber 33.
The opening of fuel suction passage 34 only is formed on the position that makes that when pressure chamber 33 is in swelling state fuel suction passage 34 is communicated with pressure chamber 33.The opening of fuel discharge route 35 is formed on and makes the position of fuel discharge route 35 and pressure chamber 33 permanent communication.
One-way valve 36 is installed in the fuel discharge route 35.One-way valve 36 allows fuel to pass fuel discharge route 35 from pressure chamber 33 discharges, prevents that simultaneously the liquid in the fuel discharge route 35 from flowing backwards.Though not shown in this Figure, plunger 31 is along making the direction that pressure chamber 33 expands promoted by elastic member.
When plunger 31 edges made that the direction of pressure chamber 33 expansions is slided in cylinder 32A, one-way valve 36 prevented fuel from fuel discharge route 35 feed pressure chambeies 33, and the pressure in the pressure chamber 33 becomes negative pressure.As a result, when sliding spool 31 arrives when allowing fuel suction passages 34 with position that pressure chamber 33 is communicated with, pass fuel suction passage 34 with fuel suction pressure chamber.
When plunger 31 changed glide directions and closes fuel suction passage 34, the fuel in the pressure chamber 33 reduced along with the capacity of pressure chamber 33 and pressurized.Therefore, the fuel of pressurization is opened one-way valve 36 and is discharged into fuel discharge route 35 in pressure chamber 33.
Next, the structure that explanation is used for the fuel pump driving device 20 of driving fuel pump 30.
With reference to Fig. 3, fuel pump driving device 20 comprises axle 21, cam unit 23, spacer element 24 and the support 25 that is bearing on the cylinder head 4A outer surface.Axle 21 is fixed to the outer surface of cylinder head 4A via vibrating part 21A.Cam unit 23 is assembled on axle 21 the excircle to be free to slide via bearing 22.Spacer element 24 uses bolt 28 to be fixed to the distal end of axle 21, thus cam unit 23 is remained on the predetermined axial position on the axle 21.Support 25 and spacer element 24 prevent that axle 21 is shifted along lateral.
With reference to Fig. 4, use bolt that support 25 is fixed to chain shell 40.Thereby chain shell 40 is parts of cylinder head 4A or is fixed in cylinder head encapsulation timing chain 7A.The housing 32 of petrolift 30 shown in Figure 3 is fixed to chain shell 40 or can constructs the part of chaining shell 40.
Petrolift driving sprocket wheel 6A and cam 27 coaxially are formed on the cam unit 23.Petrolift driving sprocket wheel 6A and timing chain 7A engagement.Thereby this cam 27 contacts with the bottom surface of the plunger 31 of petrolift 30 freely and slides.The stroking distance of the plunger 31 of petrolift 30 is from the cam profile that depends on cam 27.Here, the Design of Cam Profiles of cam 27 is oval, makes plunger 31 carry out and move back and forth for twice that axle 21 is carried out once rotation.Bearing 22 is made up of a plurality of needle bearings shown in Figure 3, thereby supporting cam unit 23 is with rotation freely on axle 21.
With reference to Fig. 5, by cylinder head 4A supporting, the distal end of axle 21 is supported by chain shell 40 via spacer element 24 and support 25 base end of axle 21 by vibrating part 21A.Axle 21 with two ends of supporting thus shows enough stability, can resist the load that petrolift driving sprocket wheel 6A and cam 27 radially apply.But, still can axle 21 supportings be cantilever through omitting support 25.
Thereby spacer element 24 is in axial direction freely slided by support 25 supportings.When in chain shell 40 and fuel pump driving device 20, thermal expansion occurring, can produce size error betwixt.According to this fuel pump driving device 20, this error can by can with respect to support 25 in axial sliding spacer element 24 absorb.
With reference to Fig. 6 and 7, pass the oil duct 50 that axle 21 is formed for supplying lubricating oil.Oil duct 50 is used for lubricant oil is supplied to the cam face 27b that bearing 22 and cam 27 contact with plunger 31.
Should be noted that the opening on the distal end that is formed on axle 21 of first oil circuit 51 is clogged by bolt 28.
According to said structure, the lubricant oil that is supplied to the base end of first oil circuit 51 causes notch 53 via first oil circuit 51 and second oil circuit 52.The lubricant oil that is stored in thus in the notch 53 is lubricated bearing 22.The lubricant oil of lubricating bearings 22 is sent to the internal surface of cam unit 23 through needle bearing, and this needle bearing rolls along with the relative rotation of axle 21 and cam unit 23.Cam 27 has through hole, and this through hole connects the internal surface of cam unit 23 and the cam face 27b on the cam periphery, makes that the lubricant oil on the internal surface of cam unit 23 is sent to the cam face 27b that contacts with plunger 31.
When operation of internal combustion engine, petrolift driving sprocket wheel 26 rotates according to the running of timing chain 7A, and the cam 27 that forms cam unit 23 also jointly is rotated with petrolift driving sprocket wheel 6A.The plunger 31 that contacts with the cam face 27b of cam 27 is carried out moving back and forth of the cam profile of following cam 27 then.As the result who moves back and forth of plunger 31, petrolift 30 sucks fuel from fuel suction passage 34, the fuel that pressurization is sucked, and pressurized fuel entered fuel discharge route 35.
In this fuel pump driving device 20; Petrolift driving sprocket wheel 26 breaks away from the position and timing chain 7A engagement of admission cam shaft 5 and exhaust cam shaft 6 at timing chain 7A, thus cam 27 not can be used to drive the valve actuation sprocket wheel 5A of intake cam or be used to drive the valve actuation sprocket wheel 6A interference of exhaust cam.
Fuel pump driving device 20 is positioned at the downstream of valve actuation sprocket wheel 5A with respect to timing chain 7A rotation direction.Timing chain 7A at crank and chain-wheel 3 with respect to the relax level on the downstream side of rotation direction greater than the relax level on its upstream side.In other words, in the face of the relax level of the position of nutted rod 8B greater than relax level in the face of the position of guide rod 8A.When the relax level of timing chain 7A is big, can impel between correct time in the respective operations of the angle of rotation of crankshaft 2 and petrolift 30 phase delay to occur.In order to reduce this phase delay, preferably fuel pump driving device 20 is arranged on the downstream of valve actuation sprocket wheel 5A.
Should be noted that, if fuel pump driving device 20 is arranged on the cylinder head 4B, so the downstream side of valve actuation sprocket wheel 5A will corresponding to cylinder head 4A away from the outside of cylinder head 4B.In this internal-combustion engine, therefore the space on the cylinder head 4A and the 4B outside, in this embodiment, preferably is arranged on fuel pump driving device 20 on the cylinder head 4A less than the space on its inboard.
Therefore, should judge whether fuel pump driving device 20 be arranged on the last perhaps cylinder head 4B of cylinder head 4A according to the usability in space.
Can fuel pump driving device 20 be arranged on the cylinder block 1, rather than be arranged on cylinder head 4A or the 4B.Entire cylinder head 4A, 4B and cylinder block 1 are called engine main body.Fuel pump driving device 20 can be arranged on any position of engine main body.
Except using timing chain 7A or 7B driving fuel pump driving sprocket wheel 26, also can use other chains such as the chain 15 driving fuel pump driving sprocket wheels 26 that are used to drive oil pump, as long as the running in a fixed manner of this chain along with the rotation of crankshaft 2.
As stated, the layout degrees of freedom of fuel pump driving device 20 is greater than and aforementioned the petrolift driving cam is fixed to the prior-art devices on air inlet or the exhaust cam shaft.Similarly, for the size of petrolift driving sprocket wheel 26, fuel pump driving device 20 has the degrees of freedom greater than prior-art devices.
The exhaust flow rate of petrolift 30 depends on the rotating speed of cam 27, and the rotating speed of cam 27 depends on the number of teeth of petrolift driving sprocket wheel 26.Therefore, according to this fuel pump driving device 20, can in the fuel draining flow rate of setting petrolift 30, realize bigger degrees of freedom.
In addition, be formed on the oil duct 50 of axle in 21 because fuel pump driving device 20 has, so even when internal-combustion engine fixedly the time lubricant oil also be collected in the oil duct 50, guarantee the lubricating of bearing 22 and cam face 27b when internal-combustion engine begins to operate thus.
In this fuel pump driving device 20, by cylinder head 4A and 40 supportings of timing chain shell, shown in Figure 4 and 5, therefore axle 21 has stable supporting structure respectively at the two ends of axle 21.
Next, with reference to Fig. 8, with another embodiment of the explanation lubricating structure about fuel pump driving device 20 of the present invention.
According to this embodiment, except using a plurality of needle bearings bearing 22 is configured to the roller bearing, bearing 22 also can be configured to metal bearing, i.e. the sliding bearing type.
In the formation of above-mentioned lubricating structure; When the through hole 27a of the through hole 22a of notch 53, bearing 22 and cam 27 is overlapping or in other words only only when cam 27 will drive plunger 31; The notch 53 of axle 21 is communicated with through hole 27a, and lubricant oil is assigned to cam face 27b.Cam face 27b lubricated of aspect this layout suppresses the consumption of lubricant oil when guaranteeing to(for) supplying lubricating oil is preferred.
The content and the content quotation that is committed to the Tokugan 2007-332388 of Japan Patent office on December 25th, 2007 that are committed to the Tokugan 2007-102500 of Japan Patent office on April 10th, 2007 are incorporated into this.
Though with reference to specific embodiment of the present invention the present invention has been described, the present invention is not limited to the foregoing description.Those skilled in the art can carry out various improvement and variation to the foregoing description within the scope of the claims.
For example, as shown in Figure 9, except in axle 21, forming second oil circuit 52 and notch 53, can in axle 21, form the sidewise hole 54 that cross section is a constant, in order to be connected to first oil circuit 51.In this structure, owing to omitted notch 53, the cutting work on the axle 21 is simplified and the processing cost of axle 21 can be reduced.
Obviously, the present invention can be applied to and use timing belt and pulley to replace in the internal-combustion engine of chain and sprocket in correct time.
The embodiment of exclusiveness right or privilege that requires of the present invention is limited in claims.
Claims (10)
1. the fuel pump driving device (20) of the petrolift to the internal-combustion engine fueling (30); The ring-type moment of torsion transfer member that said internal-combustion engine comprises crankshaft (2), is fixed in the rotary driving part of said crankshaft (2), rotation driven member and cover are around in said rotary driving part and said rotation driven member, said fuel pump driving device (20) comprising:
Swirling fuel pump driver part, this swirling fuel pump driver part engages and drives when rotated said petrolift (30) with ring-type moment of torsion transfer member between said rotary driving part and the said rotation driven member,
Wherein, said petrolift driving sprocket wheel (26) said valve actuation sprocket wheel (5A), engage with said timing chain (7A) with respect to the downstream position of said timing chain (7A) rotation direction.
2. fuel pump driving device according to claim 1 (20); Wherein, Said petrolift (30) comprises plunger (31) and along with said plunger (31) is carried out and to be moved back and forth and with fuel supply to said internal-combustion engine; And said fuel pump driving device (20) also comprises cam (27), and said cam rotates with said swirling fuel pump driver part and said plunger (31) is carried out and moves back and forth.
3. fuel pump driving device according to claim 2 (20); Wherein, Said rotary driving part is the crank and chain-wheel (3) that is fixed in said crankshaft (2); Said rotation driven member is the valve actuation sprocket wheel (5A) that is fixed in the camshaft of said internal-combustion engine, and said ring-type moment of torsion transfer member is the timing chain (7A) that cover is around in said crank and chain-wheel (3) and said valve actuation sprocket wheel (5A).
4. fuel pump driving device according to claim 3 (20); Wherein, Said internal-combustion engine also comprises engine main body (1,4A, 4B), and said swirling fuel pump driver part is via the petrolift driving sprocket wheel (26) of axle (21) by said engine main body (1,4A, 4B) supporting.
5. fuel pump driving device according to claim 1 (20); Wherein, Said internal-combustion engine also comprises two cylinder head (4A, 4B) that form V-arrangement; Each said cylinder head comprises the said valve actuation sprocket wheel (5A) that is connected in said crank and chain-wheel (3) through timing chain (7A, 7B) separately, and said petrolift driving sprocket wheel (26) is arranged on one of them said cylinder head (4A), and the downstream position of wherein said valve actuation sprocket wheel (5A) is corresponding to the inboard of said cylinder head (4A).
6. fuel pump driving device according to claim 4 (20); Wherein, Said internal-combustion engine also comprises and is fixed in the chain shell (40) of said engine main body (1,4A, 4B) with the said timing chain of sealing cover (7A); And an end of said axle (21) is by said engine main body (1,4A, 4B) supporting, and the other end of said axle (21) is supported by said chain shell (40).
7. fuel pump driving device according to claim 6 (20); Wherein, Also comprise the support (25) and the spacer element (24) that are fixed in said chain shell (40); This spacer element (24) is fixed in the said the other end of said axle (21) and is supported by said support (25), so that freely move with respect to said support (25) along the axial direction of said axle (21).
8. according to aforementioned claim 1, each described fuel pump driving device (20) of 4-7; Wherein, Said petrolift driving sprocket wheel (26) and said cam (27) form single-piece cam unit (23) and are bearing in said axle (21) via bearing (22) and go up so that freely rotate, and oil duct (51,52,53,54) is formed in the said axle (21) lubricant oil is supplied to said bearing (22).
9. fuel pump driving device according to claim 8 (20), wherein, said cam (27) has the cam face (27b) that contacts with said plunger (31), and lubricant oil is caused the through hole (27a) of said cam face (27b) from said bearing (22).
10. fuel pump driving device according to claim 9 (20); Wherein, Said bearing (22) is the prismatic slip bearing that has inner peripheral surface, outer circumferential face and connect the through hole (22a) of said inner peripheral surface and said outer circumferential face; The cam profile of said cam (27) has the basic circle zone; And the relative position of the said through hole (22a) of the said through hole (27a) of said cam (27), said bearing (22) and said oil duct (51,52,53,54) preestablishes; Only make that in that said plunger (31) and said basic circle are regional when contacting, the said through hole (27a) of said cam (27) is connected in said oil duct (51,52,53,54) via the said through hole (22a) of said bearing (22).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007102500 | 2007-04-10 | ||
| JP102500/07 | 2007-04-10 | ||
| JP2007332388A JP4983593B2 (en) | 2007-04-10 | 2007-12-25 | Fuel pump drive unit |
| JP332388/07 | 2007-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101285443A CN101285443A (en) | 2008-10-15 |
| CN101285443B true CN101285443B (en) | 2012-06-13 |
Family
ID=40057809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100886534A Active CN101285443B (en) | 2007-04-10 | 2008-04-10 | Fuel pump driving device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4983593B2 (en) |
| CN (1) | CN101285443B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201207235D0 (en) * | 2012-04-25 | 2012-06-06 | Delphi Tech Holding Sarl | Fuel pump assembly |
| CN104047781A (en) * | 2013-03-16 | 2014-09-17 | 江苏普盛动力股份有限公司 | Double-cylinder V-shaped mid-engine with low oil pressure transfer pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0715059A2 (en) * | 1992-02-24 | 1996-06-05 | Perkins Limited | An internal combustion engine |
| US5564380A (en) * | 1994-05-19 | 1996-10-15 | Yamaha Hatsudoki Kabushiki Kaisha | Camshaft operating system |
| US6328537B1 (en) * | 1997-06-17 | 2001-12-11 | Hydraulik-Ring Gmbh | Radial piston pump |
| EP1431577A1 (en) * | 2002-12-17 | 2004-06-23 | Delphi Technologies, Inc. | Fuel pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743051A (en) * | 1980-08-27 | 1982-03-10 | Toyota Motor Corp | Manufacturing method for assembled cam shaft |
| JPH0648082Y2 (en) * | 1988-06-16 | 1994-12-07 | 川崎重工業株式会社 | Axial play removal device for camshaft |
| JPH0712642Y2 (en) * | 1989-09-19 | 1995-03-29 | 本田技研工業株式会社 | Engine camshaft device |
| JPH11270426A (en) * | 1998-03-25 | 1999-10-05 | Sanshin Ind Co Ltd | Cylinder fuel injection type engine |
| JP4178589B2 (en) * | 1998-05-13 | 2008-11-12 | マツダ株式会社 | Auxiliary drive system for direct injection diesel engine |
| JP2000120407A (en) * | 1998-10-14 | 2000-04-25 | Honda Motor Co Ltd | Support structure for rotor |
| JP2003314211A (en) * | 2002-04-17 | 2003-11-06 | Honda Motor Co Ltd | Stroke varying engine |
-
2007
- 2007-12-25 JP JP2007332388A patent/JP4983593B2/en active Active
-
2008
- 2008-04-10 CN CN2008100886534A patent/CN101285443B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0715059A2 (en) * | 1992-02-24 | 1996-06-05 | Perkins Limited | An internal combustion engine |
| US5564380A (en) * | 1994-05-19 | 1996-10-15 | Yamaha Hatsudoki Kabushiki Kaisha | Camshaft operating system |
| US6328537B1 (en) * | 1997-06-17 | 2001-12-11 | Hydraulik-Ring Gmbh | Radial piston pump |
| EP1431577A1 (en) * | 2002-12-17 | 2004-06-23 | Delphi Technologies, Inc. | Fuel pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4983593B2 (en) | 2012-07-25 |
| CN101285443A (en) | 2008-10-15 |
| JP2008280993A (en) | 2008-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1980743B1 (en) | Fuel pump driving device | |
| JP4229867B2 (en) | Power unit including an internal combustion engine including a variable compression ratio mechanism | |
| CN107023426B (en) | The fuel pump mounting structural of engine | |
| US7694657B2 (en) | Engine for motorcycle | |
| US7730859B2 (en) | Variable valve train system for internal combustion engine | |
| WO2006025174A1 (en) | Variable valve drive device, engine, and motorcycle | |
| CN103080484B (en) | Camshaft device | |
| JP3954941B2 (en) | Oil passage structure in the engine | |
| CN105874175B (en) | The hydraulic pressure feeding mechanism of valve shut-down mechanism | |
| JPWO2006030587A1 (en) | Variable valve drive, engine and motorcycle | |
| CN101285443B (en) | Fuel pump driving device | |
| JP4015511B2 (en) | Engine lubrication equipment | |
| CN101182792A (en) | Oil supply structure for reducing friction of cam shaft | |
| JP4026584B2 (en) | Variable compression ratio internal combustion engine | |
| JP5039503B2 (en) | Lubrication structure of valve gear | |
| JP4762963B2 (en) | Variable valve opening characteristics internal combustion engine | |
| JPH0571441A (en) | Fuel injector | |
| JP6094547B2 (en) | Engine oil supply device | |
| JP3548149B2 (en) | Valve train for SOHC engine | |
| JP2021046831A (en) | Lubricant supply structure of power transmission device | |
| JP4220949B2 (en) | Lubricating oil passage for variable valve drive device, variable valve drive device, engine and motorcycle | |
| JP2005282537A (en) | Machine equipped with crankshaft | |
| JP2009228544A (en) | Lubricating device of valve train | |
| JP2005248929A (en) | Lubrication structure for valve system | |
| JP3334399B2 (en) | Valve timing control device for internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |