CN105986947A - A cylinder injection type internal combustion engine of a saddle riding type vehicle - Google Patents
A cylinder injection type internal combustion engine of a saddle riding type vehicle Download PDFInfo
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- CN105986947A CN105986947A CN201610152558.0A CN201610152558A CN105986947A CN 105986947 A CN105986947 A CN 105986947A CN 201610152558 A CN201610152558 A CN 201610152558A CN 105986947 A CN105986947 A CN 105986947A
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- mentioned
- spark plug
- combustion engine
- internal combustion
- camshaft
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P1/00—Air cooling
- F01P1/06—Arrangements for cooling other engine or machine parts
- F01P1/10—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/12—Arrangements for cooling other engine or machine parts
- F01P3/16—Arrangements for cooling other engine or machine parts for cooling fuel injectors or sparking-plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Fuel-Injection Apparatus (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention provides a cylinder injection type internal combustion engine (4) of a saddle riding type vehicle (1) even a SOHC internal combustion engine may miniaturize a compact spark plug and a compact fuel injection valve. The SOHC internal combustion engine forms a combustor (42) at a cylinder head (33) facing a cylinder block (32), has a valve transmission mechanism (6) for performing on-off operation of an inlet valve (38i) and a vent valve (38e). A camshaft (61) performs the on-off operation of the inlet valve and the vent valve. A camshaft transmission chain chamber (66) receiving an annular driving belt for driving the camshaft is formed at the side of the combustor. A spark plug (9) is disposed to enable an igniting electrode (9a) to face the combustor. A fuel injection valve (8) is disposed to enable a nozzle end face (8a) to face the combustor. In a cross section along the axis of the camshaft, the spark plug and the fuel injection valve clamp the camshaft to be configured in a mutually inclined manner. The spark plug or the fuel injection valve is installed through the camshaft transmission chain chamber.
Description
Technical field
The present invention relates to SOHC (SOHC Single Overhead Camshaft, single over-head camshaft) formula internal combustion engine
The inner cylinder jet type internal combustion engine of saddle ride type vehicle.
Background technology
DOHC (Double Over Head Camshaft, double over-head camshaft) formula internal combustion engine is conventional gas
Direct injection internal combustion engine, the switching manipulation of the switching manipulation camshaft and air bleeding valve with intake valve is used
Camshaft, in this DOHC formula internal combustion engine, in order to make the spray of the Fuelinjection nozzle of cylinder fuel injection
Fuelinjection nozzle, towards in combustor, is arranged in the position being held between two camshafts by mouth end,
Shown in the patent documentation 1 that such internal combustion engine is as described below.
But, if being carried out the switching manipulation of intake valve and the switching manipulation of air bleeding valve by a camshaft
SOHC formula internal combustion engine use configuration as described above, then combustion injection valve and valve actuating gear can produce
Raw interference, therefore, it is necessary to take different configurations.
[patent documentation 1] Japanese Unexamined Patent Publication 2004-150284 publication (Fig. 1, Fig. 2)
Summary of the invention
The present invention puts forward in view of above-mentioned conventional art, and the problem of the present invention is, it is provided that one
Plant the inner cylinder jet type internal combustion engine of the saddle ride type vehicle of Miniaturizable, even if configuring one above combustor
The SOHC formula internal combustion engine of individual camshaft, it is possible to so that the Fuelinjection nozzle of spark plug and in-cylinder injection is all
It is set to compact.
In order to solve above-mentioned problem, the invention that technical scheme 1 is recorded relates to the cylinder of a kind of saddle ride type vehicle
Injection internal combustion engine, for SOHC formula internal combustion engine, forms the combustor in the face of cylinder block in cylinder head, with
Time, possess the valve actuating gear of the switching manipulation carrying out the intake valve of this combustor and air bleeding valve；
Switching manipulation and the switching manipulation of above-mentioned air bleeding valve of above-mentioned intake valve is carried out by a camshaft；
Storage drives the camshaft chain room of the annular driving band of above-mentioned camshaft to be formed at above-mentioned combustor
Side；
It is provided with spark plug so that igniting electrode surface is to above-mentioned combustor；
It is provided with so that nozzle face is in the face of the Fuelinjection nozzle of the in-cylinder injection of above-mentioned combustor；
The inner cylinder jet type internal combustion engine of above-mentioned saddle ride type vehicle is characterised by:
In the cross section in the axle center along above-mentioned camshaft, above-mentioned spark plug and the clamping of above-mentioned Fuelinjection nozzle
It is mutually inclined configuration above-mentioned camshaft；
The one through above-mentioned camshaft chain room of side of above-mentioned spark plug or above-mentioned Fuelinjection nozzle is installed.
The invention that technical scheme 2 is recorded is the in-cylinder injection of the saddle ride type vehicle recorded in technical scheme 1
In formula internal combustion engine, it is characterised in that:
Surround among the wall portion of above-mentioned camshaft chain room, at sidewall of combustion chamber portion and this combustor relative
Other wall portion of side of sidewall portion the most mutually coaxially forms insertion through hole, simultaneously so that spark plug tube is crossed over
Two insert through hole installs, the above-mentioned spark plug of through above-mentioned camshaft chain room or above-mentioned Fuelinjection nozzle
Insert above-mentioned spark plug tube.
The invention that technical scheme 3 is recorded is in the cylinder of the saddle ride type vehicle of technical scheme 1 or 2 record
In jet type internal combustion engine, it is characterised in that:
The above-mentioned spark plug of through above-mentioned camshaft chain room or above-mentioned Fuelinjection nozzle are by above-mentioned annular
The inner circumferential side of transmission band.
The invention that technical scheme 4 is recorded is the saddle ride type car that any one is recorded in technical scheme 1 to 3
Inner cylinder jet type internal combustion engine, it is characterised in that:
The space making cooling medium pass through is formed between above-mentioned spark plug and above-mentioned Fuelinjection nozzle.
The invention that technical scheme 5 is recorded is the in-cylinder injection of the saddle ride type vehicle recorded in technical scheme 4
In formula internal combustion engine, it is characterised in that:
Above-mentioned cooling medium is air, the combustor roof of above-mentioned cylinder head and the above-mentioned valve train machine of storage
Air duct between the valve actuating gear room diapire of structure is formed at above-mentioned spark plug and the injection of above-mentioned fuel
Between valve.
The invention that technical scheme 6 is recorded is the in-cylinder injection of the saddle ride type vehicle recorded in technical scheme 5
In formula internal combustion engine, it is characterised in that:
Above-mentioned air duct includes being formed at the introduction part of the exhaust side of above-mentioned combustor roof, on surrounding
The side in the sidewall of combustion chamber portion stating camshaft chain room is overlapped in above the leading to of above-mentioned combustor roof
Road portion and being formed at installs near the 2nd insertion through hole of above-mentioned Fuelinjection nozzle or above-mentioned spark plug
Leading-out portion.
The invention that technical scheme 7 is recorded is the in-cylinder injection of the saddle ride type vehicle recorded in technical scheme 4
In formula internal combustion engine, it is characterised in that:
Above-mentioned cooling medium is lubricating oil, and the oil circuit in the combustor roof of above-mentioned cylinder head is formed at above-mentioned
Between spark plug and above-mentioned combustion injection valve.
The invention that technical scheme 8 is recorded is the in-cylinder injection of the saddle ride type vehicle recorded in technical scheme 7
In formula internal combustion engine, it is characterised in that:
The oil circuit formed in above-mentioned cylinder head comprises and is formed at stud and inserts the introduction part of through hole, in peace
Load onto state Fuelinjection nozzle or above-mentioned spark plug the 2nd insertion through hole the 1st oil circuit being formed about, with
And it is connected, is formed at the 2nd oil circuit in the wall portion surrounding above-mentioned camshaft chain room with the 1st oil circuit,
Lubricating oil is expelled to the end of the indoor leading-out portion of above-mentioned camshaft chain and above-mentioned 2nd oil circuit even
Connect.
The invention that technical scheme 9 is recorded is the in-cylinder injection of the saddle ride type vehicle recorded in technical scheme 4
In formula internal combustion engine, it is characterised in that:
Above-mentioned cooling medium is cooling water, the combustor roof of above-mentioned cylinder head and the above-mentioned valve train of storage
Cooling water channel between the valve actuating gear room diapire of mechanism is formed at above-mentioned spark plug and the spray of above-mentioned fuel
Penetrate between valve.
Below, the effect of the present invention be described:
According to the inner cylinder jet type internal combustion engine of saddle ride type vehicle of the invention that technical scheme 1 is recorded, spark
The one side through camshaft chain room of the Fuelinjection nozzle of plug or in-cylinder injection is installed, therefore, even if
The SOHC formula internal combustion engine of a camshaft is configured, it is possible to so that spraying in spark plug and cylinder above combustor
The Fuelinjection nozzle penetrated all is set to compact, therefore, can make the inner cylinder jet type internal combustion of saddle ride type vehicle
Machine miniaturization.
The invention recorded according to technical scheme 2, except the invention effect of technical scheme 1, in addition, by making
Spark plug tube is crossed over two insertion through holes and is installed, though spark plug or the through camshaft chain of Fuelinjection nozzle
Room, also ensures that the seal of camshaft chain room, meanwhile, utilizes spark plug tube as guiding parts, fire
The installation of flower plug or Fuelinjection nozzle becomes easy.
The invention recorded according to technical scheme 3, except the invention effect of technical scheme 1 or 2, in addition, even if
It is provided with spark plug or the Fuelinjection nozzle of through camshaft chain room, due to by annular driving band
All sides, therefore, it is to avoid camshaft chain room is expanded to the outer circumferential side of camshaft chain, in-cylinder injection
The maximization of formula internal combustion engine can be inhibited.
The invention recorded according to technical scheme 4, except the invention effect of any one in technical scheme 1 to 3,
In addition, the both sides of spark plug and Fuelinjection nozzle can actively be cooled down, therefore, in inner cylinder jet type being made
The operating condition stabilisation of combustion engine.
The invention recorded according to technical scheme 5, except the invention effect of technical scheme 4, in addition, can be by air
As cooling medium, cooling spark plug and the both sides of Fuelinjection nozzle energetically.
The invention recorded according to technical scheme 6, except the invention effect of technical scheme 5, in addition, saddle ride type car
When travelling, from being formed at the introduction part leaked-in air of the exhaust side combustor in camshaft chain room
The side of side of sidewall portion is by being overlapped in the above channel part of combustor roof, from being formed at installation fuel spray
Penetrate the leading-out portion near the 2nd insertion through hole of valve or spark plug to discharge, thus, fuel spray can be cooled down energetically
Penetrate valve or spark plug.
The invention recorded according to technical scheme 7, can will lubricate except the invention effect of technical scheme 4, in addition
Oil, as cooling medium, cools down spark plug and the both sides of Fuelinjection nozzle energetically.
The invention recorded according to technical scheme 8, except the invention effect of technical scheme 7, in addition, spray in cylinder
When penetrating formula internal combustion engine operation, lubricating oil is logical by the 2nd insertion being formed in the combustor roof of cylinder head
The 1st oil circuit near hole, and be connected with the 1st oil circuit, be formed at the wall surrounding camshaft chain room
2nd oil circuit in portion, using above-mentioned lubricating oil as cooling medium, can cool down Fuelinjection nozzle or spark energetically
Plug.
The invention recorded according to technical scheme 9, can will cool down except the invention effect of technical scheme 4, in addition
Water, as cooling medium, cools down spark plug and the both sides of Fuelinjection nozzle energetically.
Accompanying drawing explanation
Fig. 1 is the right side of the motorcycle of the inner cylinder jet type internal combustion engine of the saddle ride type vehicle being equipped with the present invention
Side view.
Fig. 2 is the inner cylinder jet type internal combustion involved by embodiment 1 of the II-II direction of arrow in Fig. 1
The partial section of machine.
Fig. 3 is the upward view of the cylinder head of the III-III direction of arrow in Fig. 2.
Fig. 4 is the sectional view of the cylinder head of the IV-IV direction of arrow in Fig. 2.
Fig. 5 is the inner cylinder jet type internal combustion involved by embodiment 2 of the II-II direction of arrow in Fig. 1
The partial section of machine.
Fig. 6 is the upward view of the cylinder head 33 of the VI-VI direction of arrow in Fig. 5.
Fig. 7 is the inner cylinder jet type internal combustion involved by embodiment 3 of the II-II direction of arrow in Fig. 1
The partial section of machine.
In figure, symbolic significance is described as follows:
1-motorcycle (" the saddle ride type vehicle " of the present invention)
2-vehicle body frame
3-power unit
4-internal combustion engine (" inner cylinder jet type internal combustion engine " in the present invention)
6-valve actuating gear
8-Fuelinjection nozzle
8a-nozzle face
9-spark plug
9a-igniting electrode
30-crankcase
31-bent axle
32-cylinder block
33-cylinder head
35-combustor roof
36i-intake valve port
36e-exhaust valve port
37i-air inlet
37e-air vent
38i-intake valve
38e-air bleeding valve
39-camshaft stand
39c-valve actuating gear room diapire
42-combustor
43-oil groove
44-air vent perisporium
45-wall portion
45a-sidewall of combustion chamber portion
45b-external side wall (" other wall portion " in the present invention)
46A, 46B-insert through hole
47-lateral wall
48-stud
49-stud inserts through hole
49a-clearance portion oil circuit
60-valve actuating gear room
61-camshaft
64i-air inlet side cam
64e-exhaust side cams
65-camshaft chain (" annular driving band " in the present invention)
66-camshaft chain room
75-air duct
75a-introduction part
75b-channel part
75c-leading-out portion
76-oil circuit
76a-introduction part
76b-the 1st oil circuit
76c-the 2nd oil circuit
76d-end
77-leading-out portion
79-cooling water channel
80-injection valve installing hole (" the 2nd inserts through hole " in the present invention)
90-spark plug mounting hole
92-spark plug tube
C-cylinder-bore axis
L1-connects the straight line at the center of intake valve port 36i and exhaust valve port 36e
The axis of X-camshaft 61
Detailed description of the invention
In the cylinder of the saddle ride type vehicle involved by the embodiment 1 of the present invention is described according to Fig. 1 to Fig. 4
Jet type internal combustion engine.
In this embodiment, saddle ride type vehicle (saddle riding type vehicle) is motorcycle
1, in claims and this specification explanation before and after left and right upper the most inferior towards being set to according to having this
The vehicle (motorcycle) of the inner cylinder jet type internal combustion engine of the saddle ride type vehicle of embodiment towards.
In figure, arrow FR represents that vehicle front, LH represent vehicle left, and RH represents vehicle right, UP table
Show vehicle up direction.
More than put in the embodiment 2, embodiment 3 of the present invention described later identical.
Fig. 1 is the motorcycle 1 of the inner cylinder jet type internal combustion engine 4 of the saddle ride type vehicle being equipped with the present invention
Right hand view, as shown in fig. 1, the vehicle body frame 2 of the motorcycle 1 of this embodiment sets in front end
Having front pipe 20, on this front pipe 20, support shaft props up the front fork 12 of front-wheel 11, vehicle body frame 2 steerably
At fore-and-aft direction pars intermedia, there is pivot plate 21, on pivot plate 21, by the swingable twelve Earthly Branches of fulcrum 15
Hold the leading section of swing arm 14 propping up trailing wheel 13 at rearward end axle, be provided with between swing arm 14 and vehicle body frame 2
Rear vibration absorption unit 16.
Trailing wheel 13 is by possessing internal combustion engine (" inner cylinder jet type internal combustion engine " in the present invention) 4 and speed change
The power unit 3 of device 5 drives revolution, and internal combustion engine 4 is configured to four-stroke air-cooled single cylinder, if
For being arranged in the lower section of the fuel tank 17 being equipped on vehicle body frame 2, it is equipped on vehicle body frame 2.Further, position
Supporting at the rear portion of vehicle body frame 2 with seat 18 by bus in fuel tank 17 rear.
Internal combustion engine 4 includes crankcase 30, cylinder block 32, cylinder head 33 and housing 34.Above-mentioned crankcase
30 bent axles 31 rotatably supporting the axis with the vehicle-width direction along motorcycle 1, above-mentioned
Cylinder block 32 has so that the cylinder the most chimeric with the piston 41 shown in Fig. 2 that bent axle 31 connects
Cylinder 32a, is combined with crankcase 30, and above-mentioned cylinder head 33 is combined with cylinder block 32, above-mentioned housing 34 and gas
Form valve actuating gear room 60 between cylinder cap 33, be combined with cylinder head 33.Make the axle of cylinder barrel 32a
Line i.e. cylinder-bore axis C is equipped on vehicle body frame 2 with the posture leaned forward slightly.
Item shown in figure 1 above, in the embodiment 2, embodiment 3 of the present invention described later
Identical.
Fig. 2 is the local of the internal combustion engine 4 involved by this embodiment 1 of the II-II direction of arrow in Fig. 1
Sectional view, as shown in Figure 2, at cylinder head 33, the piston in the cylinder barrel 32a of cylinder block 32
Combustor 42 is formed on the top of 41, has the cylinder head 33 of the combustor roof 35 in the face of combustor 42,
In Fig. 2 the III-III direction of arrow as shown in Fig. 3 of the upward view of cylinder head, be provided with in combustion
The intake valve port 36i and exhaust valve port 36e of each of burning ceiling wall 35 opening, meanwhile, in Fig. 2
The IV-IV direction of arrow as shown in Fig. 4 of the sectional view of cylinder head, be provided with and intake valve port 36i
Be connected, the air inlet 37i of trailing flank opening of cylinder head 33 and be connected with exhaust valve port 36e,
The air vent 37e of the leading flank opening of cylinder head 33, as shown in fig. 1, air intake installation 70 and air inlet
Mouthful 37i connects, be configured at trailing wheel 13 right side side the exhaust apparatus 72 comprising muffler 71 with
Air vent 37e connects.
Further, as shown in Figure 3, in cylinder head 33, arrange can do on-off action intake valve 38i and
Air bleeding valve 38e, by not shown valve spring respectively towards closing intake valve port 36i's and exhaust valve port 36e
Energize in direction.
As shown in Figure 2, the valve actuating gear 6 of the internal combustion engine 4 of this embodiment uses by one convex
Wheel shaft 61 carries out the SOHC pattern of the opening and closing operations of intake valve 38i and the on-off action of air bleeding valve 38e
Valve system, valve actuating gear 6 is arranged at the valve actuating gear room 60 in valve mechanism cover 34.
In cylinder head 33, above combustor roof 35, empty standard width of a room in an old-style house gap, is formed at the bottom of valve actuating gear room
Wall 39c, in the valve actuating gear room 60 formed above it, forms camshaft stand 39.
Camshaft stand 39 is that a pair 39a, You Zhou support sector of Zuo Zhou support sector 39b erects setting integratedly
Being formed, it is arranged in along having and bent axle 31 (ginseng from valve actuating gear room diapire 39c upward
According to Fig. 1) the direction sky standard width of a room in an old-style house of the axis of the camshaft 61 of parallel axis every position, camshaft 61 leads to
Cross left and right ball bearing 69A, 69B and be rotatably supported on axle support sector 39a, 39b of left and right.
Further, in the oblique upper, front of camshaft 61, air inlet side rocker arm shaft 63i has and camshaft 61
Parallel axis, supports between axle support sector 39a, 39b of left and right, the pars intermedia of air inlet side rocking arm 62i
Can joltily be bearing in above-mentioned air inlet side rocker arm shaft 63i, the one end of air inlet side rocking arm 62i be located at convex
The not shown valve stem end of the air inlet side cam 64i abutting of wheel shaft 61, the other end and intake valve 38i
(stem end) abuts.
Further, in the front obliquely downward of camshaft 61, exhaust side rocker arm shaft 63e has and camshaft 61
Parallel axis, supports between axle support sector 39a, 39b of left and right, the pars intermedia of exhaust side rocking arm 62e
Can joltily be bearing in above-mentioned exhaust side rocker arm shaft 63e, the one end of exhaust side rocking arm 62e be located at convex
The not shown valve stem end of the exhaust side cams 64e abutting of wheel shaft 61, the other end and air bleeding valve 38e
Abut.
On the other hand, in valve actuating gear 6, carry out the camshaft chain (present invention of power transmission
In " annular driving band ") 65 be erected between camshaft 61 and bent axle 31, be used for receiving camshaft
The camshaft chain room 66 that driving-chain 65 is passed to from the side of the combustor 42 of cylinder head 33 with
The connection of cylinder block 32, crankcase 30 is arranged.
That is, camshaft chain 65 is by being erected in camshaft chain room 66 about chimeric being installed on
The camshaft chain driven sprocket 67 of the left end of the camshaft 61 that horizontal direction is pointed to is installed on chimeric
Between the not shown camshaft chain drive sprocket of bent axle 31.
Camshaft chain 65 can also be other endless drive of the energy Synchronous Transmission of toothed band etc.
Band.
Camshaft chain driven sprocket 67 has more twice diameter than camshaft chain drive sprocket,
Therefore, by the revolution of bent axle 31, camshaft 61 by camshaft chain 65 with the 1/2 of bent axle 31
Velocity of rotation drive revolution.
But, air inlet side rocking arm 62i, along with the air inlet side cam 64i shake of the camshaft 61 rotated, makes
Intake valve 38i does on-off action by the set moment, and exhaust side rocking arm 62e is along with the camshaft rotated
The exhaust side cams 64e shake of 61, makes air bleeding valve 38e do on-off action by the set moment.
As shown in Figure 3, in terms of cylinder-bore axis C direction, i.e. intersecting vertically to cylinder-bore axis C
Plane projection on, relatively connect the straight line L1 at the center of intake valve port 36i and exhaust valve port 36e,
With opposition side, camshaft chain room 66, in cylinder head 33, be provided with the burning ceiling in cylinder head 33
The injection valve installing hole (" the 2nd inserts through hole " in the present invention) 80 of wall 35 opening so that nozzle end
Face 8a is screwed into injection valve installing hole 80 (ginseng in the face of the Fuelinjection nozzle 8 of the in-cylinder injection of combustor 42
According to Fig. 2).
That is, Fuelinjection nozzle 8 is in terms of cylinder-bore axis C direction, relatively connects intake valve port 36i and aerofluxus
The straight line L1 at the center of valve port 36e, with opposition side, camshaft chain room 66, be arranged on cylinder head 33.
Further, in terms of cylinder-bore axis C direction, relatively connect intake valve port 36i's and exhaust valve port 36e
The straight line L1 at center, with injection valve installing hole 80 opposition side, in cylinder head 33, be provided with in cylinder head
The spark plug mounting hole 90 of combustor roof 35 opening of 33 so that igniting combustor faced by electrode 9a
The spark plug 9 of 42, in relative rectilinear L1 and Fuelinjection nozzle 8 opposition side, by camshaft chain 65
Inner circumferential side, i.e. in the ring of camshaft chain 65, be disposed in cylinder head 33 (with reference to Fig. 2).
In terms of cylinder-bore axis C direction, connect the straight line at the center of intake valve port 36i and exhaust valve port 36e
L1 is set as intersecting vertically with the axis X of camshaft 61.
As shown in Figure 2, in cylinder head 33, surround among the wall portion 45 of camshaft chain room 66,
External side wall (" its in the present invention at sidewall of combustion chamber portion 45a and relative combustion room side of sidewall portion 45a
Its wall portion ") 45b, formed respectively the insertion through hole 46A coaxial and coaxial with each other with spark plug mounting hole 90,
46B, meanwhile, spark plug tube 92 crosses over two insertion through hole 46A, 46B, by camshaft chain 65
Inner circumferential side install.
Igniter plug 9 inserts spark plug tube 92 from the outside of external side wall 45b, is threaded into spark plug and installs
Hole 90, thus runs through camshaft chain room 66 and arranges.
I.e., as shown in Figure 2, in the cross section along the axle center X of camshaft 61, spark plug 9 and combustion
Material injection valve 8 clamp cam axle 61 is angled relative to each other configuration, spark plug 9 through camshaft chain room 66
Install.
Therefore, in this embodiment, owing to spark plug 9 through camshaft chain room 66 is installed, i.e.
Make the SOHC formula internal combustion engine 4 for configuring a camshaft 61 above combustor 42, it is possible to so that spark
The Fuelinjection nozzle 8 of plug 9 and in-cylinder injection is all set to compact, makes the miniaturization of internal combustion engine 4 become
May.
Further, spark plug tube 92 is crossed over and is located at the combustion surrounded among the wall portion 45 of camshaft chain room 66
Burn the two insertion through holes of room side of sidewall portion 45a and the external side wall 45b relative with sidewall of combustion chamber portion 45a
46A, 46B install, therefore, even if spark plug 9 through camshaft chain room 66, it is also possible to guarantee convex
The seal of wheel shaft chain case, meanwhile, utilizes spark plug tube 92 as guiding parts, makes spark plug 9
Installation easy.
Further, even if possessing the spark plug 9 of through camshaft chain room 66, owing to being passed by camshaft
The inner circumferential side of dynamic chain 65, it is to avoid camshaft chain room 66 is expanded to the outer circumferential side of camshaft chain 65,
The maximization of internal combustion engine 4 is inhibited.
As shown in Figure 2, in this embodiment, between spark plug 9 and Fuelinjection nozzle 8, as
The space that cooling medium passes through, cylinder head 33 combustor roof 35 and above storage valve train
Form air duct 75 between the valve actuating gear room diapire 39c of mechanism 6, have and make to be situated between as cooling
The cooling structure of the cylinder head 33 that the air of matter passes through.
As shown in Figure 4, air duct 75 at the exhaust side of combustor roof 35, i.e. air vent perisporium
Between 44 and the sidewall of combustion chamber portion 45a surrounding camshaft chain room 66, there is introduction part 75a,
The side of sidewall of combustion chamber portion 45a, possesses and overlaps above combustor roof 35, makes spark plug install
The channel part 75b that top, hole 90 is passed through, has at the injection valve installing hole 80 installing combustion injection valve 8
The leading-out portion 75c being formed about.
Accordingly, because the air as cooling medium can be made both spark plug 9 and Fuelinjection nozzle 8
Cool down energetically, the operating condition stabilisation of internal combustion engine 4 can be made.
Further, when motorcycle 1 travels, air is fully from the exhaust side being formed at towards vehicle front
Introduction part 75a flow into, leaked-in air in the 45a side, sidewall of combustion chamber portion of camshaft chain room 66,
While by the above channel part 75b overlapping combustor roof 35, flowing through the fire of spark plug 9
The top of flower plug installing hole 90, from being formed near the injection valve installing hole 80 installing Fuelinjection nozzle 8
Leading-out portion 75c discharge, therefore, it can spark plug 9 and Fuelinjection nozzle 8 are cooled down energetically.
In the above-mentioned composition of this embodiment, it is also possible to be set to so that spark plug mounting hole 90 and injection valve
Installing hole 80 is the most replaceable, replaces spark plug 9 and Fuelinjection nozzle 8, has above-mentioned enforcement equally
The effect of form.
It follows that according to Fig. 5, Fig. 6, illustrate about the saddle ride type involved by the embodiment 2 of the present invention
The inner cylinder jet type internal combustion engine of vehicle.
The embodiment 1 that this embodiment 2 is the most above-mentioned, in addition to the cooling structure difference of cylinder head,
As the motorcycle 1 of saddle ride type vehicle, the internal combustion engine 4 of power unit 3, the joining of its valve actuating gear 6
Put, constitute about the present invention all as, especially for the spark plug 9 of combustor 42 and fuel injection
The configuration of valve 8 grade, composition are also the same.Therefore, these involved action effects are in embodiment
Prove effective too in 2, identical symbol is marked with for identical corresponding portion, illustrate to omit.
Fig. 5 is the local of the internal combustion engine 4 involved by this embodiment 2 of the II-II direction of arrow in Fig. 1
Sectional view.As shown in Figure 5, in this embodiment 2, spark plug 9 and Fuelinjection nozzle 8 it
Between, as the space making cooling medium pass through, in the combustor roof 35 of cylinder head 33, form oil circuit
76, there is the cooling structure of cylinder head 33 making to pass through as the lubricating oil of cooling medium.
Fig. 6 is the upward view of the cylinder head 33 of the VI-VI direction of arrow in Fig. 5, as shown in Figure 6,
The oil circuit 76 that cylinder head 33 is formed comprises introduction part 76a, the 1st oil circuit 76b and the 2nd oil circuit 76c,
Stud 48 is for being fastened to crankcase 30, above-mentioned introduction part 76a by cylinder head 33 and cylinder block 32
It is formed at the stud being inserted through so that above-mentioned stud 48 and inserts through hole 49, above-mentioned 1st oil circuit
76b be formed at install Fuelinjection nozzle 8 injection valve installing hole 80 near, above-mentioned 2nd oil circuit 76c with
1st oil circuit 76b connects, and is formed at the wall portion 45 surrounding camshaft chain room 66, is discharged by lubricating oil
Leading-out portion 77 to camshaft chain room 66 is connected with the end 76d of the 2nd oil circuit 76c.
In this embodiment, as shown in Figure 5, the 2nd oil circuit 76c by cylinder head 33 with gas
In the face 33a that cylinder body 32 is involutory, the face 32b involutory with cylinder head 33 of cylinder block 32 covers and is formed at
Surround the oil groove 43 in the wall portion 45 of camshaft chain room 66 and formed.
Further, leading-out portion 77 is connected with the end 76d of the 2nd oil circuit 76c, is formed at cylinder block 32
In the outer wall side 47 of camshaft chain room 66, its lower end is at camshaft chain room 66 opening.
Not shown crankcase 30 is passed through from the lubricating oil of the not shown oil pump output being located at crankcase 30
In lubricant passage way, stud is inserted clearance portion between through hole 49 and stud 48 as
Gap portion oil circuit 49a, supplies lubricating oil to valve actuating gear 6 grade of cylinder head 33, in way, from formation
Introduction part 76a in the oil circuit 76 of stud insertion through hole 49 distributes a part of lubricating oil, passes through
1st oil circuit 76b, the 2nd oil circuit 76c, the spark to the combustor roof 35 being threaded into cylinder head 33
Plug 9 and combustion injection valve 8 all cool down, and afterwards, flow out to camshaft chain via leading-out portion 77
In room 66, it is back to the not shown draw-off tray of crankcase 30 bottom.
Accordingly, because lubricating oil actively can be cooled down spark plug 9 and Fuelinjection nozzle 8 as cooling medium
Both, therefore, it is possible to make the operating condition stabilisation of internal combustion engine 4.
Further, when internal combustion engine 4 operates, will be fired by the installation in the combustor roof 35 of cylinder head 33
Material injection valve 8 injection valve installing hole 80 the 1st oil circuit 76b being formed about and with the 1st oil circuit 76b
The lubricating oil of the 2nd oil circuit 76c connect, formed in the wall portion 45 surrounding camshaft chain room 66 is made
For cooling medium, Fuelinjection nozzle 8 can be added spark plug 9 and cool down energetically.
Even if in this embodiment 2, it is also possible in the above-described configuration, being set to so that spark plug mounting hole
90 and injection valve installing hole 80 the most replaceable, replace spark plug 9 and Fuelinjection nozzle 8, have equally
The effect of above-mentioned embodiment.
It follows that according to Fig. 1, Fig. 7, illustrate about the saddle ride type involved by the embodiment 3 of the present invention
The inner cylinder jet type internal combustion engine of vehicle.
The most above-mentioned embodiment of this embodiment 31, in addition to the cooling structure difference of cylinder head,
As the motorcycle 1 of saddle ride type vehicle, the internal combustion engine 4 of power unit 3, the joining of its valve actuating gear 6
Put, constitute about the present invention all as, especially for the spark plug 9 of combustor 42 and fuel injection
The configuration of valve 8 grade, composition are also the same.Therefore, these involved action effects are in embodiment
Proving effective too in 3, identical corresponding portion is marked with identical symbol, illustrates to omit.
Fig. 7 is the local of the internal combustion engine 4 involved by this embodiment 3 of the II-II direction of arrow in Fig. 1
Sectional view, as shown in Figure 7, in this embodiment 3, spark plug 9 and Fuelinjection nozzle 8 it
Between, as the space making cooling medium pass through, cylinder head 33 combustor roof 35 and above receipts
Form cooling water channel 79 between the valve actuating gear room diapire 39c of improving inspiration by invigorating kidney-QI door drive mechanism 6, have and make
Cooling structure as the cylinder head 33 that the cooling water of cooling medium passes through.
Accordingly, because the cooling water as cooling medium can be made spark plug 9 and Fuelinjection nozzle 8 liang
Person cools down the most energetically, can make the operating condition stabilisation of internal combustion engine 4.
Even if in this embodiment 3, it is also possible in the above-described configuration, being set to so that spark plug mounting hole
90 and injection valve installing hole 80 the most replaceable, replace spark plug 9 and Fuelinjection nozzle 8, have equally
The effect of above-mentioned embodiment.
It is above the inner cylinder jet type internal combustion of the saddle ride type vehicle about embodiment involved in the present invention
The explanation of machine, but the pattern of the present invention is not limited to above-mentioned embodiment, in the range of idea of the invention,
Certainly comprise and carry out, with multiple pattern, the form implemented.
Such as, the saddle ride type vehicle of the present invention is not limited to motorcycle, can be that to comprise handbarrow such
Dilly, as long as in the cylinder of the inner cylinder jet type internal combustion engine element that possesses claim 1
Jet type internal combustion engine is the most permissible.
Further, the left and right configuration of each equipment, for convenience of description, is that diagramatic content is carried out specific record,
Can be and the form of contrary configuration about device shown in above-mentioned embodiment, it be contained in the present invention.
Claims (9)
1. an inner cylinder jet type internal combustion engine for saddle ride type vehicle, for SOHC formula internal combustion engine, in cylinder head
(33) form the combustor (42) in the face of cylinder block (32), meanwhile, possess and carry out this combustor (42)
Intake valve (38i) and the valve actuating gear (6) of switching manipulation of air bleeding valve (38e)；
Switching manipulation and the above-mentioned air bleeding valve (38e) of above-mentioned intake valve (38i) is carried out by a camshaft (61)
Switching manipulation；
Storage drives the camshaft chain room (66) of the annular driving band (65) of above-mentioned camshaft (61)
It is formed at the side of above-mentioned combustor (42)；
It is provided with spark plug (9) so that igniting electrode (9a) is in the face of above-mentioned combustor (42)；
It is provided with so that nozzle face (8a) is in the face of the fuel of the in-cylinder injection of above-mentioned combustor (42)
Injection valve (8)；
The inner cylinder jet type internal combustion engine (4) of above-mentioned saddle ride type vehicle (1) is characterised by:
In the cross section along the axle center (X) of above-mentioned camshaft (61), above-mentioned spark plug (9) and upper
State Fuelinjection nozzle (8) and be mutually inclined configuration with clamping above-mentioned camshaft (61)；
Above-mentioned spark plug (9) or a through above-mentioned camshaft chain of side of above-mentioned Fuelinjection nozzle (8)
Room (66) is installed.
2. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 1, its feature
It is:
Surround among the wall portion (45) of above-mentioned camshaft chain room (66), at sidewall of combustion chamber portion (45a)
Each insertion is mutually coaxially formed with other wall portion (45b) in this sidewall of combustion chamber portion (45a) relative
Through hole (46A, 46B), simultaneously so that spark plug tube (92) crosses over two insertions through hole (46A, 46B)
Install, the above-mentioned spark plug (9) of through above-mentioned camshaft chain room (66) or above-mentioned Fuelinjection nozzle
(8) above-mentioned spark plug tube (92) is inserted.
3. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 1 or 2, its
It is characterised by:
The above-mentioned spark plug (9) of through above-mentioned camshaft chain room (66) or above-mentioned Fuelinjection nozzle (8)
Inner circumferential side by above-mentioned annular driving band (65).
4. in the inner cylinder jet type of the saddle ride type vehicle recorded according to any one in claims 1 to 3
Combustion engine, it is characterised in that:
Being formed between above-mentioned spark plug (9) and above-mentioned Fuelinjection nozzle (8) makes cooling medium pass through
Space (75,76,79).
5. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 4, its feature
It is:
Above-mentioned cooling medium is air, on the combustor roof (35) of above-mentioned cylinder head (33) and storage
State the air duct (75) between valve actuating gear room diapire (39c) of valve actuating gear (6)
It is formed between above-mentioned spark plug (9) and above-mentioned Fuelinjection nozzle (8).
6. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 5, its feature
It is:
Above-mentioned air duct (75) includes the importing being formed at the exhaust side of above-mentioned combustor roof (35)
Portion (75a), in the side in the sidewall of combustion chamber portion (45a) surrounding above-mentioned camshaft chain room (66)
It is overlapped in the above channel part (75b) of above-mentioned combustor roof (35) and to be formed at installation above-mentioned
Leading-out portion (75c) near 2nd insertion through hole (80) of Fuelinjection nozzle (8) or above-mentioned spark plug (9).
7. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 4, its feature
It is:
Above-mentioned cooling medium is lubricating oil, the oil in the combustor roof (35) of above-mentioned cylinder head (33)
Road is formed between above-mentioned spark plug (9) and above-mentioned combustion injection valve (8).
8. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 7, its feature
It is:
The oil circuit (76) formed in above-mentioned cylinder head (33) comprises and is formed at stud and inserts through hole (49)
Introduction part (76a), install above-mentioned Fuelinjection nozzle (8) or above-mentioned spark plug (9) the 2nd insert
Enter the 1st oil circuit (76b) being formed about of through hole (80) and be connected with the 1st oil circuit (76b),
It is formed at the 2nd oil circuit (76c) in the wall portion (45) surrounding above-mentioned camshaft chain room (66), will
The leading-out portion (77) that lubricating oil is expelled in above-mentioned camshaft chain room (66) and above-mentioned 2nd oil circuit
(76c) end (76d) connects.
9. according to the inner cylinder jet type internal combustion engine of the saddle ride type vehicle described in claim 4, its feature
It is:
Above-mentioned cooling medium is cooling water, the combustor roof (35) of above-mentioned cylinder head (33) and storage
Cooling water channel (79) between valve actuating gear room diapire (39c) of above-mentioned valve actuating gear (6)
It is formed between above-mentioned spark plug (9) and above-mentioned Fuelinjection nozzle (8).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-055493 | 2015-03-19 | ||
| JP2015055493A JP6262168B2 (en) | 2015-03-19 | 2015-03-19 | In-cylinder injection internal combustion engine of saddle riding type vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105986947A true CN105986947A (en) | 2016-10-05 |
| CN105986947B CN105986947B (en) | 2018-08-24 |
Family
ID=57044218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610152558.0A Expired - Fee Related CN105986947B (en) | 2015-03-19 | 2016-03-17 | The inner cylinder jet type internal combustion engine of saddle ride type vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6262168B2 (en) |
| CN (1) | CN105986947B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608817A (en) * | 2019-02-26 | 2020-09-01 | 本田技研工业株式会社 | Saddle-ride type internal combustion engine for vehicle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6887943B2 (en) * | 2017-12-28 | 2021-06-16 | 本田技研工業株式会社 | Saddle-type vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5916092B2 (en) * | 2011-03-30 | 2016-05-11 | 本田技研工業株式会社 | Spark ignition 4-cycle engine for vehicles |
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2015
- 2015-03-19 JP JP2015055493A patent/JP6262168B2/en not_active Expired - Fee Related
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|---|---|---|---|---|
| JPS6081414A (en) * | 1983-10-08 | 1985-05-09 | Kenichi Ishii | Intake and exhaust apparatuses for 4-cycle engine |
| JPH051813U (en) * | 1991-06-28 | 1993-01-14 | 株式会社クボタ | Breather device for spark ignition engine |
| CN1590729A (en) * | 2003-08-29 | 2005-03-09 | 本田技研工业株式会社 | In cylinder fuel oil jet type IC engine |
| JP2006052666A (en) * | 2004-08-11 | 2006-02-23 | Nissan Motor Co Ltd | Cylinder direct-injection type internal combustion engine |
| JP2008121615A (en) * | 2006-11-15 | 2008-05-29 | Toyota Motor Corp | Engine |
| CN102200047A (en) * | 2010-03-23 | 2011-09-28 | 本田技研工业株式会社 | Ignition plug cooling device of vehicle-use engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608817A (en) * | 2019-02-26 | 2020-09-01 | 本田技研工业株式会社 | Saddle-ride type internal combustion engine for vehicle |
| CN111608817B (en) * | 2019-02-26 | 2022-02-22 | 本田技研工业株式会社 | Saddle-ride type internal combustion engine for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105986947B (en) | 2018-08-24 |
| JP6262168B2 (en) | 2018-01-17 |
| JP2016176358A (en) | 2016-10-06 |
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