CN105927401A - Internal-combustion engine - Google Patents
Internal-combustion engine Download PDFInfo
- Publication number
- CN105927401A CN105927401A CN201610094114.6A CN201610094114A CN105927401A CN 105927401 A CN105927401 A CN 105927401A CN 201610094114 A CN201610094114 A CN 201610094114A CN 105927401 A CN105927401 A CN 105927401A
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- China
- Prior art keywords
- mentioned
- cylinder head
- camshaft
- cam
- petrolift
- 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.)
- Granted
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 40
- 238000001514 detection method Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 3
- 229910000634 wood's metal Inorganic materials 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 25
- 239000000498 cooling water Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000009931 harmful effect Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/006—Camshaft or pushrod housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
-
- 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
- F02M39/00—Arrangements of fuel-injection apparatus with respect to engines; Pump drives adapted to such arrangements
- F02M39/02—Arrangements of fuel-injection apparatus to facilitate the driving of pumps; Arrangements of fuel-injection pumps; Pump drives
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0537—Double overhead camshafts [DOHC]
Landscapes
- 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
The invention provides an internal-combustion engine preventing the detection precision of the cam shaft from worsening. The engine (1) includes an admission cam shaft (13) supporting on a cylinder head (11) and rotating freely and including a cam (13B) driven by a pump and a sensing rotor (61), a fuel pump (41) installed on the cylinder head (11) and including a plunger (52) moving by the rotation of the cam (13B) driven by the pump, and a cam angle sensor (62) including a main body (62A) and a detecting element (62B). The main body (62A) is installed on the cylinder head (11), and the detecting element (62B) is protruded from the main body (62A) to the sensing rotor (61) to detect the rotation angle of the sensing rotor (61). The protruded direction (B) of the detecting element (62B) and the axis direction of the admission cam shaft (13) are orthogonal, and the protruded direction (B) of the detecting element (62B) and the movement direction (A) of the plunger (52) are orthogonal.
Description
Technical field
The present invention relates to internal combustion engine, particularly relate to possess the anglec of rotation of detection camshaft
The internal combustion engine of detection means.
Background technology
The cylinder head of the internal combustion engine that the vehicles such as automobile are carried is provided with camshaft, above-mentioned camshaft
There is the cam for making inlet and exhaust valve work.It addition, camshaft is provided with detection camshaft
The sensor of the anglec of rotation, the anglec of rotation of the rotor of camshaft is located at by this sensor by detection
Degree detects the anglec of rotation of camshaft.
It addition, camshaft is provided with pump drives cam, said pump drives cam along with camshaft
Rotate and make the plunger of petrolift move thus from petrolift ejection fuel under high pressure.As this
Possesses the internal combustion engine of cylinder head, it is known that the such as device described in patent documentation 1.
Prior art literature
Patent documentation
Patent documentation 1: JP 2008-223609 publication
Summary of the invention
The problem that invention is to be solved
In above-mentioned existing internal combustion engine, cam and pump drive cam to be located at camshaft, and pump drives
Moving cam is from the petrolift of ejection fuel under high pressure by big counteracting force, and camshaft is by big
Distortion torque, bend loading.
Thus, camshaft vibrates on the direction orthogonal with axis direction, with camshaft
On the direction that axis direction is orthogonal, rotor changes with the distance of sensor, the rotation of camshaft
The accuracy of detection of angle likely deteriorates.
The present invention is conceived to the problems referred to above and completes, and its object is to offer and can prevent convex
The internal combustion engine that the accuracy of detection of wheel shaft deteriorates.
For solving the scheme of problem
The internal combustion engine of the present invention possesses: camshaft, and it is supported in cylinder head and rotatable,
There is pump and drive cam and detected rotor；Petrolift, it is installed on cylinder head, has post
Plug, when pump drives the rotation of cam, this plunger is in the side orthogonal with the axis direction of camshaft
Move up；And detection means, it has main body and test section, and aforementioned body is installed on
Cylinder head, above-mentioned test section is prominent to detected rotor from main body, the detected rotor of detection
The anglec of rotation, the projected direction of test section is orthogonal with the axis direction of camshaft, and test section
Projected direction orthogonal with the moving direction of plunger.
Invention effect
So according to the invention described above, the projected direction of test section and the axis direction of camshaft
Orthogonal, and the projected direction of test section is orthogonal with the moving direction of plunger.
Thus, the counteracting force at the plunger of petrolift puts on pump and drives cam and camshaft
On the direction orthogonal with axis direction in the case of vibration, camshaft can be reduced at test section
Projected direction on deflection, torsional capacity.Therefore, at the axis direction with camshaft just
Detected rotor can be suppressed on the direction handed over to change with the distance of test section, can prevent convex
The accuracy of detection of the anglec of rotation of wheel shaft deteriorates.
Accompanying drawing explanation
Fig. 1 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the top view of internal combustion engine.
Fig. 2 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the top view of cylinder head under the state having pulled down valve mechanism cover.
Fig. 3 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the axonometric chart of cylinder head under the state having pulled down valve mechanism cover.
Fig. 4 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the front view of cylinder head under the state having pulled down valve mechanism cover.
Fig. 5 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the top view of cylinder head under the state having pulled down valve mechanism cover and petrolift mounting bracket.
Fig. 6 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the side view of internal combustion engine.
Fig. 7 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It is that the VII-VII direction of Fig. 6 is to regarding sectional view.
Fig. 8 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the major part axonometric chart of cylinder head under the state having pulled down valve mechanism cover.
Fig. 9 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It is to represent to input the direction of load and from intake valve to entering from petrolift to admission cam shaft
The figure in the direction of gas camshaft input load.
Figure 10 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the side view of cylinder head under the state having pulled down valve mechanism cover.
Figure 11 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
It it is the side view of cylinder head under the state having pulled down valve mechanism cover and petrolift mounting bracket.
Figure 12 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
The axonometric chart of petrolift mounting bracket when being to watch from the left side of vehicle.
Figure 13 is the figure of an embodiment of the internal combustion engine representing embodiments of the present invention,
The axonometric chart of petrolift mounting bracket when being to watch from the front side of vehicle.
Description of reference numerals
1: electromotor, 2: ignition coil, 11: cylinder head, 12: valve mechanism cover, 13:
Admission cam shaft (camshaft), 13B: pump drive cam, 13a: left part (camshaft
End), 13b: bearing portion, 15: spark plug, 33: left side wall (partition wall),
33A: bearing support portion, 41: petrolift, 42: petrolift mounting bracket, 52: plunger,
61: sensing rotor (detected rotor), 62: cam angle sensor (detection means), 62A:
Main body, 62B: detecting element (test section).
Detailed description of the invention
Hereinafter, the embodiment of the internal combustion engine of the accompanying drawing explanation present invention is used.
Fig. 1～Figure 13 is the figure of the internal combustion engine representing embodiments of the present invention.
First, illustrate to constitute.
In FIG, the electromotor 1 of the internal combustion engine constituting the present invention includes horizontal 4 cycle engine
Machine, above-mentioned horizontal 4 Stroke Engine are in not shown piston period of reciprocal 2 times in cylinder
Inside carry out including a succession of of induction stroke, compression stroke, expansion stroke and exhaust stroke
4 strokes.
Electromotor 1 is equipped on vehicle, and electromotor 1 possesses cylinder head 11 and valve mechanism cover 12.This
Outward, in Fig. 1～Figure 13, around and up and down all directions represent and send out from being equipped with
The direction when driver's seat of the vehicle of motivation 1 is watched.
Cylinder head 11 is installed on the top of not shown cylinder block.Cylinder block has storage and does not schemes
The not shown cylinder of the piston shown, above-mentioned not shown piston moves up and down freely, piston
Up and down motion be converted to be located at the rotary motion of the not shown bent axle of cylinder block.
In Fig. 1, Fig. 2, cylinder head 11 possesses: rear side wall portion 31 and front side wall portion 32, its
Extend parallel in the vehicle width direction；Left side wall 33, it is direction before and after vehicle
Upper extension and (left with the one end of rear side wall portion 31 and the vehicle-width direction of front side wall portion 32
End) continuously；Right side wall portions 34, its before and after vehicle side upwardly extend and and rear wall
The other end (right part) of the vehicle-width direction of portion 31 and front side wall portion 32 is continuous；With
And bottom wall part 35, itself and front side wall portion 32, left side wall 33 and the bottom of right side wall portions 34
Continuously (with reference to Fig. 3), above-mentioned cylinder head 11 is made up of the housing of rectangular shape.
In fig. 2, the central part in cylinder head 11 is formed with the lobe of storage spark plug 15
16, spark plug 15 is upper to the cylinder by the bottom surface of the bottom wall part 35 of cylinder head 11 and cylinder block
The not shown combustor that portion is formed highlights.Additionally, the electromotor 1 of embodiment includes tool
4 cylinder direct-injection petrol engines of standby 4 spark plugs 15.
In FIG, cylinder head 11 is provided with in the way of paired with spark plug 15 multiple point
Fire coil 2, ignition coil 2 lights spark plug 15.
In Fig. 2, Fig. 3, cylinder head 11 be provided with admission cam shaft 13 and with admission cam shaft 13
The exhaust cam shaft 14 extended parallel to.In Fig. 2, Fig. 8, admission cam shaft 13 and aerofluxus
Camshaft 14 is supported in lower cam shell 18 and overhead cam shell 17 and rotatable, above-mentioned under
Cam shell 18 and overhead cam shell 17 become the bearing portion on the top being arranged at cylinder head 11.
The right part of admission cam shaft 13 and exhaust cam shaft 14 is provided with not shown cam chain
Wheel, cam sprocket wheel is wound with not shown timing chain.Timing chain is wound in the not shown of bent axle
Crank and chain-wheel, the rotation of bent axle is delivered to admission cam shaft 13 and exhaust cam by timing chain
Axle 14.
Admission cam shaft 13 is provided with multiple admission cam 13A, as it is shown in figure 9, admission cam
13A is connected to rocking arm 19.Rocking arm 19 contacts with the pivot 20A of hydraulic lash adjuster 20.
In the central authorities of rocking arm 19, pin 19B support and be pressed roller 19A.It is pressed roller 19A
Highlight from the upper surface of rocking arm 19, be pressed roller 19A and contact with admission cam 13A.
The lower surface of the arm leading section 19D of the side, the other end of rocking arm 19 and intake valve 21
Upper-end contact.Intake valve 21 is arranged to enter relative to cylinder head 11 in the axial direction
Moving back, intake valve 21 is to the direction pushed by valve spring 22, i.e. to by air inlet 46 (ginseng
According to Fig. 1) with combustor connection block direction move, above-mentioned air inlet 46 is by air inlet gas
Door 21 is opened, is closed.
When rocking arm 19 resists the effect of valve spring 22 by the rotation of admission cam 13A
When power presses intake valve 21, air inlet 46 is connected with combustor.So intake valve
21 movements of retreating by the rotation of admission cam 13A, thus, air inlet 46 and combustor
Connected or be blocked.Here, the rocking arm 19 of present embodiment and valve spring 22 constitute this
The valve lifting device of invention.
Exhaust cam shaft 14 is provided with multiple exhaust cam 14A, and exhaust cam 14A is not by scheming
The rocking arm shown and the upper-end contact of not shown exhaust valve.Additionally, exhaust cam 14A is also
Contact with exhaust valve by having the not shown rocking arm of the composition identical with rocking arm 19, by
The structure identical with air inlet side drives, thus, by air vent and combustion chamber or blocking-up.
In Fig. 1～Fig. 4, Fig. 6～Figure 10, cylinder head 11 is provided with petrolift 41 and fuel
Pump mounting bracket 42.Petrolift 41 is provided with fuel feed pipe 44, from fuel feed pipe 44 to combustion
Material pump 41 supplies low-pressure fuel.
Petrolift 41 is provided with fuel feed pipe 43, and fuel feed pipe 43 imports by petrolift 41
Have adjusted the fuel of pressure.
In FIG, cylinder head 11 is provided with conveying pipe 45, and conveying pipe 45 will be from fuel feed pipe
43 fuel imported are supplied to not shown Fuelinjection nozzle.
Fuelinjection nozzle is arranged at each combustor of cylinder head 11, and conveying pipe 45 will be from combustion
The fuel under high pressure that material supply pipe 43 imports is to Fuelinjection nozzle distribution, supply.Fuelinjection nozzle
The fuel under high pressure supplied from conveying pipe 45 is directly sprayed to combustor.
In FIG, rear side wall portion 31 is formed with multiple air inlet 46, each air inlet 46 with
Cylinder connects.Rear side wall portion 31 is provided with not shown inlet manifold, and inlet manifold will be by not
The suction air that the air filter of diagram purifies distributes to each air inlet 46, imports.
In Fig. 3, Fig. 4, front side wall portion 32 is formed with aerofluxus set path 47, aerofluxus set
Path 47 set and the air vent of each combustion chamber.From cylinder through air vent by aerofluxus collection
That closes path 47 concentration discharges not shown the touching that gas is connected with aerofluxus set path 47
Medium/device purifies, and is discharged by not shown exhaustor afterwards.Alternatively, it is also possible to fill at catalyst
Put the turbine case that not shown turbocharger is set between aerofluxus set path 47.
Here, the cylinder head 11 of present embodiment and petrolift mounting bracket 42 are by metal material
Constituting, valve mechanism cover 12 is made up of resin material.
In Fig. 4, Fig. 7, Fig. 8, admission cam shaft 13 is provided with pump and drives cam 13B, fuel
Pump 41 is driven cam 13B to drive by pump.
In the figure 7, petrolift 41 possesses: pump main body 51, plunger 52, electromagnetic valve 53, bullet
Spring 54 and the adapter 55 that electromagnetic valve 53 is electrically connected with not shown controller.
Pump main body 51 has: suction inlet 51a, and it sucks fuel；Ejiction opening 51b, its ejection
Fuel；Pressure chamber 51c, it connects with suction inlet 51a and ejiction opening 51b；And switch valve
51d, it is opened by electromagnetic valve 53, is closed suction inlet 51a.Pump main body 51 has: cylinder
51e, its storage plunger 52 and plunger 52 move freely；And flange 51f, it is by pump main body
51 are installed on petrolift mounting bracket 42.
Suction inlet 51a is connected with fuel feed pipe 44, ejiction opening 51b and fuel feed pipe 43
Connect.Ejiction opening 51b is provided with not shown delivery valve, and delivery valve is when the combustion in pressure chamber 51c
The valve opening when pressure of material exceedes setting, sprays in fuel feed pipe 43 from ejiction opening 51b
Fuel.
Plunger 52 has: roller 52a, and it is connected to pump and drives cam 13B；And lifting structure
Part 52b, it supports roller 52a and roller 52a is rotatable.Lift members 52b by spring 54 to pump
Driving the pressing of cam 13B side, roller 52a is connected to pump driving cam with specify by pressure
13B.Thus, plunger 52 by pump drive cam 13B rotary motion and convex with air inlet
Move back and forth on the direction that the axis direction of wheel shaft 13 is orthogonal.
In petrolift 41, plunger 52 is made to decline when being driven the rotation of cam 13B by pump
Time, suction inlet 51a opens, and is sucked by fuel in the pressure chamber 51c that volume becomes big.It addition,
In petrolift 41, when being driven the rotation of cam 13B to make plunger 52 increase by pump,
Suction inlet 51a closes, and the pressure of the fuel being drawn in pressure chamber 51c improves.
Electromagnetic valve 53 has the toroidal winding being controlled by a controller, when inhaling from suction inlet 51a
When entering fuel, open switch valve 51d, when improving the pressure of fuel, by pressure chamber 51c
Connection with suction inlet 51a blocks.
In fig .9, the plunger 52 of admission cam 13A and petrolift 41 be arranged to clip into
Gas camshaft 13.Thus, valve spring 22 apply to admission cam shaft 13 from rocking arm 19
The direction of load F1 and the load F2 applied to admission cam shaft 13 from plunger 52 by spring 54
Direction become contrary direction.
In Fig. 7, Fig. 8, the left part 13a of admission cam shaft 13 is being provided with admission cam
13A, pump drive the inside of the cylinder head 11 of cam 13B and exhaust cam 14A to compare left side wall
Portion 33 extends outward.
Here, the admission cam shaft 13 of present embodiment constitutes the camshaft of the present invention, air inlet
Cam 13A constitutes the cam lobe of the present invention.It addition, the left part 13a of admission cam shaft 13
Constitute the end of the camshaft of the present invention.
The left part 13a of the admission cam shaft 13 extended outward than left side wall 33 is provided with biography
Sense rotor 61, is formed with different multiple prominent of length on the circumferencial direction of sensing rotor 61
Portion 61A.Cam angle sensor 62 it is provided with (with reference to figure in the position relative with sensing rotor 61
10, Figure 11), cam angle sensor 62 detects the anglec of rotation of sensing rotor 61.
Here, the sensing rotor 61 of present embodiment constitutes the detected rotor of the present invention, convex
Wheel angle transducer 62 constitutes detection means.
In the figure 7, the bearing portion 13b of the left end side of admission cam shaft 13 is supported in left side wall
33 and petrolift mounting bracket 42 and rotatable.
At Figure 12, Tu13Zhong, petrolift mounting bracket 42 includes: the 1st side of sidewall portion 71, its
The axis direction of admission cam shaft 13 extends, is installed on the upper surface of rear side wall portion 31；
2nd side of sidewall portion 72, it extends along left side wall 33 from the 1st side of sidewall portion 71, is installed on left side
The upper surface in wall portion 33；And linking wall portion 73, it is by the 1st side of sidewall portion the 71 and the 2nd side of sidewall portion
72 link.
2nd side of sidewall portion 72 has bearing support portion 72a, and above-mentioned bearing support portion 72a is with from upper
Side supports the mode of the bearing portion 13b of admission cam shaft 13 and is formed with semicircle shape depression.Separately
Outward, left side wall 33 be formed bearing support portion 33A, above-mentioned bearing support portion 33A with from
The mode of the bearing portion 13b of supported underneath admission cam shaft 13 is formed with semicircle shape depression
(with reference to Fig. 5, Fig. 7).Here, bearing support portion 33A, 72a of present embodiment are constituted
The bearing support portion of the present invention.
2nd side of sidewall portion 72 is formed with petrolift mounting boss 74, petrolift mounting boss
The through hole 74a that the 74 pump main bodys 51 with petrolift 41 are inserted.Projection installed by petrolift
The opening of the through hole 74a in portion 74 is formed with flange 74b, flange 74b and is fixed by bolt 76A
Flange 51f (with reference to Fig. 8) in pump main body 51.
It addition, flange 74b is with relative to rear side wall portion 31, front side wall portion 32 and left side wall
The mode that the upper surface of the upper surface in portion 33, i.e. cylinder head 11 tilts is formed.Thus, in combustion
Under the state that material pump 41 is installed on petrolift mounting bracket 42, the axle of the plunger 52 of petrolift 41
Line tilts relative to the upper surface of cylinder head 11.Additionally, this inclination angle be set as 0 °～
The scope of 180 °.Thus, the height of the above-below direction of electromotor 1 can be shortened, car can be shortened
The height of above-below direction.
1st side of sidewall portion 71 is provided with fixing boss 75A, 75B, above-mentioned fixing boss 75A,
75B is formed with through hole 75a, 75b.Bolt 76B, 76C insert through hole 75a, 75b.
Rear side wall portion 31 is formed with bolt hole 31A, 31B (reference bolt 76B, 76C fastened
Fig. 5), bolt 76B, 76C insert through hole 75a, 75b, bolt 76B, 76C and bolt
Hole 31A, 31B are chimeric, and thus, the 1st side of sidewall portion 71 is fixed on rear side wall portion 31.
2nd side of sidewall portion 72 is provided with fixing boss 75C, and above-mentioned fixing boss 75C is formed
Through hole 75c, bolt 76D insert through hole 75c.Left side wall 33 is formed bolt 76D
The bolt hole 33B (with reference to Fig. 5) of fastening, bolt hole 33B is at the axis of admission cam shaft 13
Direction separates with bolt hole 31B.
Thus, chimeric with bolt hole 31B bolt 76C and the bolt chimeric with bolt hole 33B
76D separates.Here, bolt 76B～76D of present embodiment constitutes the fastening structure of the present invention
Part.
It is chimeric with bolt hole 33B that bolt 76D inserts through hole 75c, bolt 76C, thus,
2nd side of sidewall portion 72 is fixed on left side wall 33.
In Fig. 1, Fig. 2, Fig. 8, when overlooking cylinder head 11, petrolift mounting bracket 42
The 2nd side of sidewall portion 72 and the bearing support portion using the part as petrolift mounting bracket 42
The mode that 33A (with reference to Fig. 7) overlaps is installed on cylinder head 11.
Therefore, when overlooking cylinder head 11, petrolift 41 is with the top weight with left side wall 33
The mode closed is installed on petrolift mounting bracket 42.
At Figure 12, Tu13Zhong, the 2nd side of sidewall portion 72 is formed with fastening part 78.Fastening part 78 shape
Become to have through hole 78a, fastening part 78 to be fixed with housing member described later.It addition, at Fig. 1
In, the 2nd side of sidewall portion 72 of present embodiment is positioned at ignition coil 2 and cam angle sensor 62
Between.
In Fig. 1, Fig. 2, Fig. 4, Fig. 6, Fig. 7, the 2nd sidewall of petrolift mounting bracket 42
Portion 72 and left side wall 33 are provided with vacuum pump 82 by housing member 81.That is, this embodiment party
The housing member 81 of formula is located between vacuum pump 82 and left side wall 33.
Make bolt 76E embedding with the through hole 78a of the 2nd side of sidewall portion 72 by housing member 81
Close, thus vacuum pump 82 is fixed on together with housing member 81 the 2nd side of sidewall portion 72 (reference
Fig. 8).
In Fig. 4, Fig. 6, the lower end of housing member 81 is bolted 76F and is fixed on cylinder head 11
Left side wall 33.
Vacuum pump 82 links, by admission cam shaft 13 with the left part 13a of admission cam shaft 13
Drive thus produce negative pressure, by this negative pressure feeding to brake booster etc..
In Fig. 7, Fig. 8, sensing rotor 61 is accommodated in housing member 81, and cylinder head 11 is left
Side of sidewall portion the 33 and the 2nd side of sidewall portion 72 is divided into storage pump and drives cam chamber 63 He of cam 13B
Storage sensing rotor 61 and the sensing chamber 64 of cam angle sensor 62.
Here, the left side wall 33 of present embodiment constitutes partition wall and the sidewall of the present invention,
Vacuum pump 82 constitutes the subsidiary engine of the present invention.
Additionally, the inside of the lower section at the housing member 81 contacted with left side wall 33, it is provided with
Not shown cooling water path and temperature controller, discharge cooling water from cooling water path, above-mentioned cold
But water flows through the not shown water jacket being internally formed in cylinder head 11.
This cooling water path separates with sensing chamber 64, and above-mentioned sensing chamber 64 is that to be accommodated with air inlet convex
The left part 13a of wheel shaft 13, sensing rotor 61 and the housing member of cam angle sensor 62
The space of the top of 81.Thus, cooling water will not flow to sensing chamber 64 from cooling water path.
In Fig. 1, Fig. 2, bolt 76C is arranged at cylinder head 11, and with admission cam
The direction that the axis direction of axle 13 is orthogonal is overlapping with housing member 81, and above-mentioned bolt 76C is with left
The bearing support portion 33A of side of sidewall portion 33 separates on the axis direction of admission cam shaft 13 and sets
Put.
In other words, in Figure 5, the bolt hole 31B that bolt 76C is fitted together to with air inlet
The orthogonal direction of the axis direction of camshaft 13 mode overlapping with housing member 81 is formed at
Cylinder head 11.
In the figure 7, pump drives cam 13B in the inside of cam chamber 63 and left side wall 33 phase
Neighbour, sensing rotor 61 is adjacent with left side wall 33 in the inside of sensing chamber 64.That is, pump drives
Cam 13B and sensing rotor 61 be arranged to clip left side wall the 33, the 2nd side of sidewall portion 72 and
Bearing portion 13b, bearing portion 13b are supported in the of left side wall 33 and petrolift mounting bracket 42
2 side of sidewall portion 72 and rotatable.
In fig. 11, cam angle sensor 62 is installed on housing member 81.Cam angle sensor
62 possess: main body 62A, and it has the bonder for taking out signal；And detecting element
62B, it is prominent to sensing rotor 61 from main body 62A, at the radial direction of sensing rotor 61
Foreign side is relative with sensing rotor 61.Additionally, the detecting element 62B of present embodiment constitutes this
The test section of invention.
In cam angle sensor 62, the prominent side that detecting element 62B highlights from main body 62A
To orthogonal with the axis direction of admission cam shaft 13, the projected direction B of detecting element 62B with
The moving direction A of the plunger 52 of petrolift 41 is orthogonal.
In the cam chamber 63 of the cylinder head 11 of present embodiment, to admission cam 13A with shake
The contact surface of the contact surface of arm 19, exhaust cam 14A and not shown rocking arm and plunger 52
Roller 52a and pump drive the contact surface supply lubrication oil of cam 13B.
Such as in admission cam 13A and the inside of exhaust cam 14A, pass through from main oil gallery
The not shown oily path formed on the bearing of trend of admission cam 13A and exhaust cam 14A
The contact surface etc. of cam 13B is driven to supply this oil to the roller 52a of plunger 52 with pump.
Below, illustration.
The left part 13a of admission cam shaft 13 is provided with sensing rotor 61, when admission cam shaft 13
During rotation, cam angle sensor 62 detect the protuberance 61A of sensing rotor 61 thus detect into
The anglec of rotation of gas camshaft 13.The detection information of cam angle sensor 62 exports not shown
Controller, controller detection based on cam angle sensor 62 information calculates admission cam shaft
The rotating speed of the time per unit of 13 or the anglec of rotation etc..
On the other hand, when being lighted spark plug 15 by ignition coil 2, cam angle sensor 62
It is likely due to electromagnetic wave when ignition coil 2 is lighted and misoperation occurs, need to make cam
Angle transducer 62 is not by the harmful effect of electromagnetic wave of ignition coil 2.
Electromotor 1 according to present embodiment, cylinder head 11 has left side wall 33, air inlet
Camshaft 13 is supported in above-mentioned left side wall 33 and rotatable, and above-mentioned left side wall 33
Cylinder head 11 is divided into storage pump and drives cam chamber 63 and the storage sensing rotor of cam 13B
61 and the sensing chamber 64 of cam angle sensor 62.
Thus, can be by left side wall 33 by ignition coil 2 and cam angle sensor 62 resistance
Disconnected, cam angle sensor 62 can be prevented by the harmful effect of the electromagnetic wave of ignition coil 2.
It addition, according to the electromotor 1 of present embodiment, make the prominent side of detecting element 62B
To orthogonal with the axis direction of admission cam shaft 13, and make the projected direction of detecting element 62B
Orthogonal with the moving direction of plunger 52.
Thus, the counteracting force at the plunger 52 of petrolift 41 puts on pump and drives cam 13B
And in the case of admission cam shaft 13 vibrates on the direction orthogonal with axis direction, can reduce
The admission cam shaft 13 deflection on the projected direction of detecting element 62B, torsional capacity.Cause
This, on the direction orthogonal with the axis direction of admission cam shaft 13, can suppress sensing rotor
61 change with the distance of detecting element 62B, can prevent the anglec of rotation of admission cam shaft 13
The accuracy of detection of degree deteriorates.
It addition, according to the electromotor 1 of present embodiment, the left side wall 33 of cylinder head 11 has
Bearing support portion 33A, above-mentioned bearing support portion 33A is had to support the bearing of admission cam shaft 13
The bearing portion 13b of portion 13b and admission cam shaft 13 is rotatable, and pump drives cam 13B and biography
Sense rotor 61 is arranged to clip admission cam shaft on the axis direction of admission cam shaft 13
The bearing portion 13b of 13.
Thus, pump driving cam can be set close to the bearing portion 13b of admission cam shaft 13
13B and sensing rotor 61, the counteracting force at the plunger 52 of petrolift 41 puts on pump and drives
Cam 13B and situation that admission cam shaft 13 vibrates on the direction orthogonal with axis direction
Under, the moment of the left part 13a acting on admission cam shaft 13 can be reduced, above-mentioned air inlet is convex
Wheel shaft 13 is provided with sensing rotor 61.
Accordingly, it is capable to more effectively reduce the admission cam shaft 13 prominent side at detecting element 62B
Deflection upwards, torsional capacity.Thus, can more effectively suppress sensing rotor 61 and detection
The distance of element 62B changes, and can more efficiently prevent from the anglec of rotation of admission cam shaft 13
The accuracy of detection of degree deteriorates.
It addition, according to the electromotor 1 of present embodiment, have: petrolift mounting bracket 42,
Petrolift 41 is installed on cylinder head 11 by it；And valve mechanism cover 12, it has ignition coil
2, cover cylinder head 11 and petrolift mounting bracket 42, be installed on cylinder head 11, air inlet is convex
The left part 13a of wheel shaft 13 extends outward than the left side wall 33 of cylinder head 11, and
The left part 13a of admission cam shaft 13 is provided with sensing rotor 61, by petrolift mounting bracket
42 and left side wall 33 support the bearing portion 13b of admission cam shaft 13 and admission cam shaft 13
Bearing portion 13b is rotatable, close to left side wall on the axis direction of admission cam shaft 13
33 ground are provided with sensing rotor 61.
Thus, the plunger 52 to petrolift 41 can be blocked with the left side wall 33 of cylinder head 11
The oil being lubricated with pump driving cam 13B, can prevent above-mentioned oil from dispersing to sensing rotor 61.
Accordingly, it is capable to be reliably prevented detecting element 62B detection oil, can be accurate by detecting element 62B
Really detect the anglec of rotation of sensing rotor 61.As a result of which it is, it is convex to detect air inlet exactly
The anglec of rotation of wheel shaft 13.
It addition, ignition coil 2 and detecting element can be blocked with the left side wall 33 of cylinder head 11
62B, can block, for detecting element 62B, the electromagnetic wave produced when ignition coil 2 is lighted.Thus,
The anglec of rotation of admission cam shaft 13 can be detected exactly by detecting element 62B.
It addition, according to the electromotor 2 of present embodiment, make the 2nd of petrolift mounting bracket 42 the
Side of sidewall portion 72 is between ignition coil 2 and cam angle sensor 62.
Thus, left side wall 33 and the 2nd side of sidewall portion of petrolift mounting bracket 42 can be passed through
72 electromagnetic waves blocking ignition coil 2, can prevent cam angle sensor 62 by ignition lead
The harmful effect of electromagnetic wave when circle 2 is lighted.Accordingly, it is capable to it is accurate by cam angle sensor 62
Really detect the anglec of rotation of admission cam shaft 13.
In particular according to the electromotor 1 of present embodiment, it is made up of cylinder head 11 metal material
With petrolift mounting bracket 42, it is made up of valve mechanism cover 12 resin material.
Thus, can by the left side wall 33 of cylinder head 11 and petrolift mounting bracket 42 every
Open detecting element 62B and ignition coil 2, left side wall 33 and petrolift mounting bracket can be passed through
42 electromagnetic waves more effectively blocking ignition coil 2.
It addition, in the occlusion effect of the electromagnetic wave in order to improve ignition coil 2 and the metal system of using
In the case of becoming cylinder head 11 and petrolift mounting bracket 42, also can be by making valve mechanism cover 12
Realize lightweight and realize the lightweight of internal combustion engine.
Although disclosing embodiments of the present invention, it is understood that those skilled in the art can
Apply change without departing from the scope of the invention.It is intended to all of this amendment
With the claim that equivalent is contained in the present invention.
Claims (4)
1. an internal combustion engine, possesses:
Camshaft, it is supported in cylinder head and rotatable, has pump and drives cam and tested
Survey rotor；
Petrolift, it is installed on above-mentioned cylinder head, has plunger, drives cam in said pump
Rotation time this plunger move up in the side orthogonal with the axis direction of above-mentioned camshaft；With
And
Detection means, it has main body and test section, and aforementioned body is installed on above-mentioned cylinder head,
Above-mentioned test section is prominent to above-mentioned detected rotor from aforementioned body, detects above-mentioned detected turn
The anglec of rotation of son,
Above-mentioned internal combustion engine is characterised by,
The projected direction of above-mentioned test section is orthogonal and above-mentioned with the axis direction of above-mentioned camshaft
The projected direction of test section is orthogonal with the moving direction of above-mentioned plunger.
Internal combustion engine the most according to claim 1, it is characterised in that
Above-mentioned cylinder head has bearing support portion, and above-mentioned bearing support portion supports above-mentioned camshaft
Bearing portion and the bearing portion of above-mentioned camshaft rotatable, said pump drives cam and above-mentioned
Detected rotor is arranged to clip above-mentioned camshaft on the axis direction of above-mentioned camshaft
Bearing portion.
3. according to the internal combustion engine described in claim 1 or claim 2, it is characterised in that
Have:
Petrolift mounting bracket, above-mentioned petrolift is installed on above-mentioned cylinder head by it；And
Valve mechanism cover, it has the ignition coil lighting spark plug, cover above-mentioned cylinder head and
Above-mentioned petrolift mounting bracket, is installed on above-mentioned cylinder head,
The end of above-mentioned camshaft extends outward than the sidewall of above-mentioned cylinder head, and above-mentioned
Detected rotor is installed on the end of above-mentioned camshaft,
Above-mentioned by above-mentioned petrolift mounting bracket and the above-mentioned camshaft of above-mentioned side wall support
The above-mentioned bearing portion of bearing portion and above-mentioned camshaft is rotatable,
Above-mentioned detected rotor is disposed proximate to above-mentioned on the axis direction of above-mentioned camshaft
The position of sidewall.
4. according to the internal combustion engine described in any one in claim 1 to claim 3, its
It is characterised by,
Above-mentioned cylinder head and above-mentioned petrolift mounting bracket it is made up of, by resinous wood metal material
Material constitutes above-mentioned valve mechanism cover.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015038768A JP6443128B2 (en) | 2015-02-27 | 2015-02-27 | Internal combustion engine |
| JP2015-038768 | 2015-02-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927401A true CN105927401A (en) | 2016-09-07 |
| CN105927401B CN105927401B (en) | 2019-03-26 |
Family
ID=56682772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610094114.6A Active CN105927401B (en) | 2015-02-27 | 2016-02-19 | Internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6443128B2 (en) |
| CN (1) | CN105927401B (en) |
| DE (1) | DE102016202698A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374738A (en) * | 2017-02-01 | 2018-08-07 | 福特环球技术公司 | Petrolift is installed |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021192273A1 (en) * | 2020-03-27 | 2021-09-30 | 本田技研工業株式会社 | Internal combustion engine |
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| US5267546A (en) * | 1990-02-10 | 1993-12-07 | Robert Bosch Gmbh | Method and apparatus for controlling a fuel pump |
| EP0808997A1 (en) * | 1996-05-24 | 1997-11-26 | Toyota Jidosha Kabushiki Kaisha | Valve performance control apparatus for internal combustion engine |
| CN1904332A (en) * | 2005-07-25 | 2007-01-31 | 日产自动车株式会社 | Mounting structure for cam angle sensor of internal-combustion engine |
| JP2013155692A (en) * | 2012-01-31 | 2013-08-15 | Suzuki Motor Corp | Fuel pump device of vehicle engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH04140477A (en) * | 1990-09-28 | 1992-05-14 | Mazda Motor Corp | Cylinder head of engine |
| JP3039776U (en) * | 1997-01-20 | 1997-07-31 | 国産電機株式会社 | Fuel supply control device for internal combustion engine |
| JP4365373B2 (en) * | 2006-01-19 | 2009-11-18 | トヨタ自動車株式会社 | Camshaft support structure for internal combustion engine |
| JP4715783B2 (en) | 2007-03-13 | 2011-07-06 | マツダ株式会社 | Engine superstructure |
| JP5830880B2 (en) * | 2011-03-01 | 2015-12-09 | スズキ株式会社 | Cylinder head cover structure of internal combustion engine |
| JP5462854B2 (en) * | 2011-11-25 | 2014-04-02 | 本田技研工業株式会社 | Auxiliary machine mounting structure for internal combustion engine |
-
2015
- 2015-02-27 JP JP2015038768A patent/JP6443128B2/en active Active
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2016
- 2016-02-19 CN CN201610094114.6A patent/CN105927401B/en active Active
- 2016-02-22 DE DE102016202698.4A patent/DE102016202698A1/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5267546A (en) * | 1990-02-10 | 1993-12-07 | Robert Bosch Gmbh | Method and apparatus for controlling a fuel pump |
| EP0808997A1 (en) * | 1996-05-24 | 1997-11-26 | Toyota Jidosha Kabushiki Kaisha | Valve performance control apparatus for internal combustion engine |
| CN1904332A (en) * | 2005-07-25 | 2007-01-31 | 日产自动车株式会社 | Mounting structure for cam angle sensor of internal-combustion engine |
| JP2013155692A (en) * | 2012-01-31 | 2013-08-15 | Suzuki Motor Corp | Fuel pump device of vehicle engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374738A (en) * | 2017-02-01 | 2018-08-07 | 福特环球技术公司 | Petrolift is installed |
| CN108374738B (en) * | 2017-02-01 | 2021-10-15 | 福特环球技术公司 | System for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927401B (en) | 2019-03-26 |
| JP6443128B2 (en) | 2018-12-26 |
| DE102016202698A1 (en) | 2016-09-01 |
| JP2016160799A (en) | 2016-09-05 |
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