CN105927313B - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
- Publication number
- CN105927313B CN105927313B CN201610094638.5A CN201610094638A CN105927313B CN 105927313 B CN105927313 B CN 105927313B CN 201610094638 A CN201610094638 A CN 201610094638A CN 105927313 B CN105927313 B CN 105927313B
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- mentioned
- cam
- camshaft
- vacuum pump
- side wall
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/08—Separating lubricant from air or fuel-air mixture before entry into cylinder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/101—Lubrication of valve gear or auxiliaries of cam surfaces
-
- 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
- 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
- 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
- F01L1/08—Shape of cams
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/185—Overhead end-pivot rocking arms
-
- 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
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
-
- 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
- F01L2001/0476—Camshaft bearings
-
- 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]
-
- 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
- F01L2305/00—Valve arrangements comprising rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
- F16N7/32—Mist lubrication
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)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Engine (1) (internal combustion engine) can detach mist of oil from air, prevent sediment.Cylinder head (11) and petrolift mounting bracket (42) in side left part (13a) of admission cam shaft (13) there is the side wall for separating bearing portion receiving room (124) and cam chamber (63), above-mentioned bearing portion receiving room (124) to be formed in vacuum pump (82) and store bearing of vacuum cylinder portion (122).Left side wall (33) has multiple intercommunicating pores (125,126,127) that the air for being connected to bearing portion receiving room (124) with cam chamber (63) and being sucked vacuum pump (82) is sprayed to cam chamber (63) with the 2nd side of sidewall portion (72), and is located at the position opposite with the side of pump driving cam (13B).When being watched from the axis direction of admission cam shaft (13), intercommunicating pore (125,126,127) configuration is in the position overlapped with pump driving cam (13B).
Description
Technical field
The present invention relates to internal combustion engines, have in the vacuum pump by camshaft actuated more particularly in the end of cylinder head
Combustion engine.
Background technology
In the past, it is known that for negative pressure that the main gasbag (マ ス タ ー バ ッ グ) etc. for generating brake apparatus uses and by internal combustion
Machine drives vacuum pump.As the internal combustion engine for carrying vacuum pump, it is known that the internal combustion engine recorded in patent document 1.The internal combustion engine exists
The side end of cylinder head is equipped with vacuum pump, from the end of the camshaft of perforation cylinder head to vacuum pump drive shaft passing power, by
This driving vacuum pump.
Existing technical literature
Patent document
Patent document 1：Special open 2009-85119 bulletins
Invention content
Problems to be solved by the invention
In above-mentioned existing internal combustion engine, in order to reduce the frictional force of vacuum pump drive shaft and bearing portion, need to vacuum
The bearing portion of pump supplies lubrication oil.Therefore, mist of oil is generated in the bearing portion of vacuum pump, which flows into cylinder head.
Thus, in existing internal combustion engine, the mist of oil for flowing into cylinder head passes through blow-by gas access in high loaded process
Flow into induction pathway, it is possible to generate sediment in intake valve.When intake valve generates sediment, the performance of internal combustion engine
It reduces.
The present invention is conceived to the above problem and completes, and its purpose is to provide can be efficiently separated from air by vacuum
The internal combustion engine for pumping the mist of oil generated, preventing from generating sediment in intake valve.
The solution to the problem
The internal combustion engine of the present invention has：Component is stored, is accommodated with camshaft, it is convex to be provided with valve actuation on the camshaft
Wheel and fuel pump driving cam；Petrolift is installed on above-mentioned storage component, is driven by above-mentioned fuel pump driving cam；And
Vacuum pump is installed on above-mentioned storage component, has the vacuum pump drive shaft engaged with an end of above-mentioned camshaft, vacuum
Pump shaft bearing portion and oil passage are set to above-mentioned vacuum pump, and above-mentioned bearing of vacuum cylinder portion supports above-mentioned vacuum pump drive shaft and vacuum pump drives
Moving axis rotates freely, and above-mentioned oil passage supplies lubricating oil to above-mentioned bearing of vacuum cylinder portion, stores above-mentioned fuel pump driving cam
Cam chamber is set to above-mentioned storage component, and above-mentioned internal combustion engine, which has, leads to the blow-by gas that above-mentioned cam chamber is connected with intake channel
Road, characteristics of the above-mentioned internal combustion engines are that, above-mentioned storage component has side wall, above-mentioned side wall in an end side of above-mentioned camshaft
Bearing portion receiving room and above-mentioned cam chamber are separated, above-mentioned bearing portion receiving room is formed in above-mentioned vacuum pump and stores above-mentioned vacuum pump
Bearing portion, above-mentioned side wall have the sky that above-mentioned bearing portion receiving room is connected to above-mentioned cam chamber and is sucked above-mentioned vacuum pump
Multiple intercommunicating pores that gas is sprayed to above-mentioned cam chamber, and it is located at the position opposite with the side of above-mentioned fuel pump driving cam, from
Above-mentioned camshaft axis direction viewing when, at least one of above-mentioned multiple intercommunicating pores intercommunicating pore configuration with above-mentioned petrolift
The position that driving cam overlaps.
Invention effect
In this way according to aforementioned present invention, when being watched from the axis direction of camshaft, it is set to the company of the side wall of storage component
Through-hole configure in the position overlapped with fuel pump driving cam, therefore can make the air from vacuum pump side by intercommunicating pore to
It improves flow velocity and striking fuel and pumps driving cam.That is, can fuel pump driving cam be used as gas-liquid separation impingement plate.Thus,
The mist of oil generated by vacuum pump can be efficiently separated from air, can prevent from generating sediment in intake valve.
Description of the drawings
Fig. 1 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is the vertical view of internal combustion engine.
Fig. 2 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is to have removed valve mechanism cover
In the state of cylinder head vertical view.
Fig. 3 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, be with by petrolift and
The plane of admission cam shaft block after internal combustion engine sectional view.
Fig. 4 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is to have removed valve mechanism cover
In the state of cylinder head major part stereogram.
Fig. 5 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, be indicate from petrolift to
Admission cam shaft inputs the direction of load and inputs the figure in the direction of load from intake valve to admission cam shaft.
Fig. 6 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is to have removed valve mechanism cover
In the state of cylinder head side view.
Fig. 7 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is to have removed valve mechanism cover
With the side view of the cylinder head in the state of petrolift mounting bracket.
Fig. 8 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is seen from the left side of vehicle
The stereogram of petrolift mounting bracket when seeing.
Fig. 9 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is seen from the front side of vehicle
The stereogram of petrolift mounting bracket when seeing.
Figure 10 is the figure of an embodiment of the internal combustion engine for indicating embodiments of the present invention, is from admission cam shaft
The side view of left side wall and the 2nd side of sidewall portion when axis direction is watched.
Reference sign
1：Engine (internal combustion engine), 11：Cylinder head (storage component), 13：Admission cam shaft (camshaft), 13B：Pump driving
Cam, 13a：Left part (end of camshaft), 33：Left side wall (side wall), 33A：Bearing support portion (bearing support
Portion), 41：Petrolift, 42：Petrolift mounting bracket, 63：Cam chamber, 72：2nd side of sidewall portion (side wall), 72a：Bearing support portion
(bearing support portion), 82：Vacuum pump, 121：Vacuum pump drive shaft, 122：Bearing of vacuum cylinder portion, 123：Oil passage, 124：Bearing
Portion's receiving room, 125：Intercommunicating pore (upper communication hole), 126,127：Intercommunicating pore (downside intercommunicating pore), 130：Intake channel, 131：
Blow-by gas access.
Specific implementation mode
Hereinafter, the embodiment of the internal combustion engine using the description of the drawings present invention.Fig. 1~Figure 10 is the implementation for indicating the present invention
The figure of the internal combustion engine of mode.
First, illustrate to constitute.In Fig. 1, the engine 1 for constituting the internal combustion engine of the present invention includes horizontal 4 Stroke Engine,
Above-mentioned horizontal 4 Stroke Engine carries out including induction stroke, compression in a period of piston (not shown) reciprocal 2 times in cylinder
A series of 4 stroke of stroke, expansion stroke and exhaust stroke.
Engine 1 is equipped on vehicle, and engine 1 has cylinder head 11 and valve mechanism cover 12.In addition, in Fig. 1~Figure 10,
Direction when all directions indicate to watch from the driver's seat of the vehicle equipped with engine 1 around and up and down.
Cylinder head 11 is installed on the top of cylinder block (not shown).Cylinder block, which has, stores the not shown of piston (not shown)
Cylinder, above-mentioned piston (not shown) moves up and down freely, and the up and down motion of piston is converted to set on the (not shown) of cylinder block
The rotary motion of bent axle.
In Fig. 1, Fig. 2, cylinder head 11 has：Rear side wall portion 31 and front side wall portion 32, put down in the vehicle width direction
Extend capablely；Left side wall 33, the front and back of vehicle upwardly extend and with the vehicle of rear side wall portion 31 and front side wall portion 32
An end (left part) in width direction is continuous；Right side wall portions 34, the front and back of vehicle upwardly extend and with rear side
Another end (right part) on the vehicle-width direction of wall portion 31 and front side wall portion 32 is continuous；And bottom wall part 35, with
The lower part of front side wall portion 32, left side wall 33 and right side wall portions 34 is continuous (with reference to Fig. 6), and above-mentioned cylinder head 11 is by cuboid
The shell of shape is constituted.
In fig. 2, the lug boss 16 of storage spark plug 15 is formed in the central portion of cylinder head 11, spark plug 15 is to by gas
The combustion chamber (not shown) that the bottom surface of the bottom wall part 35 of cylinder cap 11 and the top of the cylinder of cylinder block are formed protrudes.In addition, implementing
The engine 1 of mode includes the 4 cylinder direct-injection petrol engines for having 4 spark plugs 15.
In Fig. 1, in cylinder head 11 by with spark plug 15 it is pairs of in a manner of be equipped with multiple ignition coils 2, ignition coil 2
Light spark plug 15.
In fig. 2, the exhaust cam that cylinder head 11 is equipped with admission cam shaft 13 and is extended parallel to admission cam shaft 13
Axis 14.In Fig. 2, Fig. 4, admission cam shaft 13 and exhaust cam shaft 14 be supported in convex hub cap 17 and lower cam shell 18 and
It rotates freely, above-mentioned convex hub cap 17 and lower cam shell 18 become the bearing portion on the top for being set to cylinder head 11.
The right part of admission cam shaft 13 and exhaust cam shaft 14 is equipped with cam sprocket wheel (not shown), and cam sprocket wheel is wound with
Timing chain (not shown).Timing chain is wound in the crank and chain-wheel (not shown) of bent axle, timing chain by the rotation of bent axle be transmitted into
Gas camshaft 13 and exhaust cam shaft 14.
Admission cam shaft 13 is equipped with multiple admission cam 13A, as shown in figure 5, admission cam 13A is connected to rocking arm 19.It shakes
Arm 19 is contacted with the pivot 20A of hydraulic lash adjuster 20.
In the center of rocking arm 19, roller 19A is pressed by pin 19B supports.It is prominent from the upper surface of rocking arm 19 to be pressed roller 19A
Go out, is pressed roller 19A and is contacted with admission cam 13A.
The upper-end contact of the lower surface and intake valve 21 of the arm front end 19D of the other end side of rocking arm 19.Air inlet gas
Door 21 is arranged on the axis direction of intake valve 21 retreat relative to cylinder head 11.Intake valve 21 is to by valve spring
22 push direction, i.e. to the direction movement for blocking the connection of air inlet 46 (referring to Fig.1) and combustion chamber, above-mentioned air inlet 46
It opened, closed by intake valve 21.
Intake valve 21 is pressed when rotation of the rocking arm 19 by admission cam 13A fights the active force of valve spring 22
When, air inlet 46 is connected to combustion chamber.Intake valve 21 is moved forward and backward by the rotation of admission cam 13A in this way, as a result,
Air inlet 46 is connected to or is blocked with combustion chamber.Here, the rocking arm 19 of present embodiment constitutes the valve lifting dress of the present invention
It sets.
Exhaust cam shaft 14 be equipped with multiple exhaust cam 14A, exhaust cam 14A by rocking arm (not shown) with it is (not shown)
The upper-end contact of exhaust valve.In addition, exhaust cam 14A by rocking arm (not shown) with composition identical with rocking arm 19 with
Exhaust valve contacts, and is driven by air valve structure identical with air inlet side, as a result, by exhaust outlet and combustion chamber or blocking.
In Fig. 1~Fig. 6, cylinder head 11 is equipped with petrolift 41 and petrolift mounting bracket 42.Petrolift 41 is equipped with combustion
Expect supply pipe 44, low-pressure fuel is supplied from fuel feed pipe 44 to petrolift 41.
Petrolift 41 is equipped with fuel feed pipe 43, and fuel feed pipe 43 imports the fuel that pressure is had adjusted by petrolift 41.
In Fig. 1, cylinder head 11 is equipped with delivery pipe 45, and the fuel imported from fuel feed pipe 43 is supplied to by delivery pipe 45
Fuel injection valve (not shown).
Fuel injection valve is arranged by each combustion chamber of cylinder head 11, the height that delivery pipe 45 will be imported from fuel feed pipe 43
Pressurized fuel is distributed to fuel injection valve, is supplied.Fuel injection valve is direct to combustion chamber by the high pressure fuel supplied from delivery pipe 45
Injection.
In Fig. 1, rear side wall portion 31 is formed with multiple air inlets 46, and each air inlet 46 is connected to cylinder.Rear side wall portion
31 are equipped with inlet manifold (not shown), and inlet manifold is by the sucking air purified by air cleaner (not shown) to each air inlet
46 distribution of mouth imports.
Front side wall portion 32 is formed with exhaust set access (not shown), exhaust set way set and each combustion chamber
Exhaust outlet.Gather the discharge gas in way set by exhaust by exhaust outlet from cylinder with what exhaust set access was connected to not schemed
The catalyst device purification shown, is discharged by exhaust pipe (not shown) later.Alternatively, it is also possible in catalyst device and exhaust set access
The turbine case of turbocharger (not shown) is set between 47.
Here, the cylinder head 11 and petrolift mounting bracket 42 of present embodiment are made of metal material, valve mechanism cover 12
It is made of resin material.Cylinder head 11 and the storage of petrolift mounting bracket 42 are equipped with admission cam 13A and pump driving cam 13B's
Admission cam shaft 13 constitutes the storage component of the present invention.
In Fig. 3, Fig. 4, admission cam shaft 13 is equipped with pump driving cam 13B, and petrolift 41 is driven by pump driving cam 13B
It is dynamic.Pump the fuel pump driving cam that driving cam 13B constitutes the present invention.
In figure 3, petrolift 41 has：Pump main body 51, plunger 52, solenoid valve 53, spring 54 and by solenoid valve 53 with
The connector 55 of controller electrical connection (not shown).
Pump main body 51 has：Suction inlet 51a sucks fuel；Ejiction opening 51b sprays fuel；Balancing gate pit 51c, with
Suction inlet 51a is connected to ejiction opening 51b；And switch valve 51d, it opened by solenoid valve 53, close suction inlet 51a.Pump master
Body 51 has：Cylinder 51e, stores plunger 52 and plunger 52 moves freely；And flange 51f, pump main body 51 is installed on
Petrolift mounting bracket 42.
Suction inlet 51a is connect with fuel feed pipe 44, and ejiction opening 51b is connect with fuel feed pipe 43.Ejiction opening 51b is equipped with
Delivery valve (not shown), delivery valve when the pressure of the fuel in balancing gate pit 51c be more than specified value when valve opening, from ejiction opening 51b to
Fuel is sprayed in fuel feed pipe 43.
Plunger 52 has：Roller 52a is connected to pump driving cam 13B；And lift members 52b, support roller 52a and
Roller 52a is rotated freely.Lift members 52b is pressed by spring 54 to the sides pump driving cam 13B, and roller 52a is supported with defined pressing force
It is connected to pump driving cam 13B.As a result, plunger 52 by pump driving cam 13B rotary motion by with admission cam shaft 13
The direction of axis 13C moves back and forth on orthogonal direction.
In petrolift 41, when making plunger 52 decline by pumping the rotation of driving cam 13B, suction inlet 51a is opened,
In the balancing gate pit 51c that fuel sucking volume is become larger.In addition, in petrolift 41, when by pumping the rotation of driving cam 13B
When plunger 52 being made to increase, suction inlet 51a is closed, and the pressure for being drawn into the fuel in balancing gate pit 51c improves.
Solenoid valve 53 has the toroidal winding being controlled by a controller, and when sucking fuel from suction inlet 51a, turns on the switch
Valve 51d blocks the connection of balancing gate pit 51c and suction inlet 51a when improving the pressure of fuel.
In Figure 5, when the direction of the axis 13C from admission cam shaft 13 is watched, the combustion of cam 13B drivings is driven by pump
The plunger 52 of material pump 41 and the rocking arm 19 driven by admission cam 13A are configured as opposite across admission cam shaft 13.
The load F2 of admission cam shaft 13 is acted on from the plunger 52 of petrolift 41 and act on air inlet from rocking arm 19 as a result,
The load F1 of camshaft 13 becomes opposite direction, therefore offsets.
In Fig. 3, Fig. 4, the left part 13a of admission cam shaft 13 equipped with admission cam 13A, pump driving cam 13B with
And the inside of the cylinder head 11 of exhaust cam 14A is extended outward than left side wall 33.
Here, the admission cam shaft 13 of present embodiment constitutes the camshaft of the present invention, admission cam 13A constitutes the present invention
Valve actuation cam.In addition, the left part 13a of admission cam shaft 13 constitutes an 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 equipped with sensing rotor 61, is sensing
The different multiple protruding portion 61A of length is formed on the circumferencial direction of rotor 61.It is equipped in the position opposite with sensing rotor 61
Cam angle sensor 62 (with reference to Fig. 6, Fig. 7), cam angle sensor 62 detects the rotation angle of sensing rotor 61.
In figure 3, the bearing portion 13b of the left end side of admission cam shaft 13 is supported in left side wall 33 and petrolift installation branch
It frame 42 and rotates freely.
In Fig. 8, Fig. 9, petrolift mounting bracket 42 includes：1st side of sidewall portion 71, in the axis of admission cam shaft 13
The side of 13C upwardly extends, and is installed on the upper surface of rear side wall portion 31；2nd side of sidewall portion 72, from the 1st side of sidewall portion 71 along left side
Wall portion 33 extends, and is installed on the upper surface of left side wall 33；And connection wall portion 73, by the 1st side of sidewall portion 71 and the 2nd side of sidewall portion
72 connections.
2nd side of sidewall portion 72 has bearing support portion 72a, and above-mentioned bearing support portion 72a is with admission cam shaft supported from above
The mode of 13 bearing portion 13b is with semicircle shape is recessed and is formed.In addition, left side wall 33 is formed with bearing support portion 33A, it is above-mentioned
Bearing support portion 33A is in a manner of the bearing portion 13b for supporting admission cam shaft 13 from below with semicircle shape is recessed and forms (reference
Fig. 3).Here, bearing support portion 33A, 72a of present embodiment constitute the bearing support portion of the present invention.
2nd side of sidewall portion 72 is formed with petrolift mounting boss 74, and petrolift mounting boss 74 has petrolift 41
The through hole 74a that pump main body 51 is inserted into.The open end of the through hole 74a of petrolift mounting boss 74 is formed with flange 74b,
Flange 74b is fixed on the flange 51f of pump main body 51 by bolt 76A (with reference to Fig. 4).
In addition, flange 74b is with relative to rear side wall portion 31, the upper surface of front side wall portion 32 and left side wall 33, i.e. gas
The inclined mode in upper surface of cylinder cap 11 is formed.
1st side of sidewall portion 71 is equipped with fixing boss 75A, 75B, and above-mentioned fixing boss 75A, 75B is formed with through hole
75a、75b.Bolt 76B, 76C are inserted into through hole 75a, 75b.Rear side wall portion 31, which is formed with, does not scheme bolt 76B, 76C fastening
The bolt hole shown, bolt 76B, 76C are inserted into through hole 75a, 75b, and bolt 76B, 76C are chimeric with the bolt hole of rear side wall portion 31,
The 1st side of sidewall portion 71 is fixed on rear side wall portion 31 as a result,.
2nd side of sidewall portion 72 is equipped with fixing boss 75C, and above-mentioned fixing boss 75C is formed with through hole 75c, bolt 76D
It is inserted into through hole 75c.Left side wall 33 is formed with the bolt hole (not shown) for fastening bolt 76D.
Bolt 76D is inserted into through hole 75c, and bolt 76C is chimeric with the bolt hole of left side wall 33, as a result, the 2nd side of sidewall portion 72
It is fixed on left side wall 33.
In Fig. 1, Fig. 2, Fig. 4, when overlooking cylinder head 11, petrolift mounting bracket 42 is using as petrolift mounting bracket
2nd side of sidewall portion 72 of 42 part is installed on cylinder head 11 with the bearing support portion 33A modes overlapped (with reference to Fig. 3).
Therefore, when overlooking cylinder head 11, petrolift 41 is installed on combustion in a manner of being overlapped with the top of left side wall 33
Material pump mounting bracket 42.
In Fig. 8, Fig. 9, the 2nd side of sidewall portion 72 is formed with fastening part 78.Fastening part 78 is formed with through hole 78a, fastening part
78 fix aftermentioned housing member.
In addition, in Fig. 1, the 2nd side of sidewall portion 72 of present embodiment be located at ignition coil 2 and cam angle sensor 62 it
Between.
In Fig. 1, Fig. 2, Fig. 3, vacuum pump 82 is installed on petrolift mounting bracket 42 with housing member 81 for intermediary
2nd side of sidewall portion 72 and left side wall 33.
That is, the housing member 81 of present embodiment is set between vacuum pump 82 and left side wall 33.
Keep bolt 76E chimeric with the through hole 78a of the 2nd side of sidewall portion 72 by housing member 81, thus by vacuum pump 82
The 2nd side of sidewall portion 72 is fixed on together with housing member 81 (with reference to Fig. 4).
The lower end of housing member 81 is fixed on the left side wall 33 of cylinder head 11 by bolt 76F.
In Fig. 3, Fig. 4, sensing rotor 61 is accommodated in housing member 81.In the inside of cylinder head 11, it is formed with storage pump
The cam chamber 63 of driving cam 13B.In addition, in the inside of cylinder head 11, it is formed with storage sensing rotor 61 and cam angle sensing
The sensing chamber 64 of device 62.
In figure 3, vacuum pump 82 has vacuum pump drive shaft 121, the vacuum pump drive shaft 121 and admission cam shaft 13
Left part 13a engages.
Vacuum pump 82 from admission cam shaft 13 to 121 passing power of vacuum pump drive shaft to generate negative pressure, by the negative pressure
It is supplied to brake booster etc..
Vacuum pump 82 has：Bearing of vacuum cylinder portion 122, support vacuum pump drive shaft 121 and the rotation of vacuum pump drive shaft 121
Turn freely；And oil passage 123, supply lubricating oil to bearing of vacuum cylinder portion 122.
In addition, vacuum pump 82 is formed with the bearing portion receiving room 124 in storage bearing of vacuum cylinder portion 122.Bearing portion receiving room
124 storage bearing of vacuum cylinder portions 122, therefore the lubricating oil supplied from oil passage 123 disperses.The lubricating oil become mist of oil and with sky
Gas is sprayed to sensing chamber 64 together.
Left side wall 33 and the 2nd side of sidewall portion 72 separate cam chamber 63 and sensing chamber 64 and bearing portion receiving room 124.
This, the left side wall 33 and the 2nd side of sidewall portion 72 of present embodiment constitute the side wall of the present invention.
Inside in the lower section of the housing member 81 contacted with left side wall 33 is equipped with cooling water path (not shown) and temperature
Device is controlled, cooling water is discharged from cooling water path, above-mentioned cooling water flows through the aftermentioned water jacket in the formation of the inside of cylinder head 11.
The cooling water path is separated with sensing chamber 64, and above-mentioned sensing chamber 64 is the left part for being accommodated with admission cam shaft 13
The space of the top of the housing member 81 of 13a, sensing rotor 61 and cam angle sensor 62.Cooling water will not be from cold as a result,
But water passage flows to sensing chamber 64.
In figure 3, pump driving cam 13B is adjacent with left side wall 33 in the inside of cam chamber 63, and sensing rotor 61 is being examined
The inside for surveying room 64 is adjacent with left side wall 33.That is, pump driving cam 13B and sensing rotor 61 are arranged to clip left side wall
33, the 2nd side of sidewall portion 72 and bearing portion 13b, bearing portion 13b are supported in the 2nd of left side wall 33 and petrolift mounting bracket 42
It side of sidewall portion 72 and rotates freely.
In the figure 7, cam angle sensor 62 is installed on housing member 81.Cam angle sensor 62 has：Main body 62A,
With the coupler for taking out signal；And detecting element 62B, it protrudes from main body 62A to sensing rotor 61, turns in sensing
The radial direction foreign side of son 61 is opposite with sensing rotor 61.
In the cam chamber 63 of the cylinder head 11 of present embodiment, contact surface, exhaust to admission cam 13A and rocking arm 19
Cam 14A and the contact surface supply of the contact surface of rocking arm (not shown) and the roller 52a and pump driving cam 13B of plunger 52 lubricate
With oil.
Such as in the inside of admission cam 13A and exhaust cam 14A, pass through from main oil gallery in admission cam 13A and exhaust
Contact surface of roller 52a from the oily access (not shown) formed on the extending direction of cam 14A to plunger 52 and pump driving cam 13B
Deng supply the oil.
In fig. 2, cylinder head 11 is equipped with blow-by gas access 131.
The blow-by gas access 131 connects the intake channel 130 in cam chamber 63 and vacuum tank 132.Blow-by gas is logical
Road 131 makes the blow-by gas for blowing to crank chamber from combustion chamber pass through cam chamber 63 to flow back into intake channel 130.
In Fig. 3, Tu10Zhong, it is formed with intercommunicating pore 126,127 in left side wall 33, is formed in the 2nd side of sidewall portion 72
Intercommunicating pore 125.Bearing portion receiving room 124 is connected to by above-mentioned multiple intercommunicating pores 125,126,127 with cam chamber 63, makes vacuum pump 82
The air sucked is sprayed to cam chamber 63.In addition, intercommunicating pore 125,126,127 is convex with pump driving on the direction of axis 13C
The side of wheel 13B is oppositely arranged.
When being watched from the direction of the axis 13C of admission cam shaft 13, intercommunicating pore 125,126,127 and pump driving cam 13B
It overlaps.That is, when being watched from the direction of the axis 13C of admission cam shaft 13, multiple intercommunicating pores 125,126, at least one of 127
Intercommunicating pore configuration is in the position overlapped with pump driving cam 13B.
Intercommunicating pore 126,127 configures compared with the axis 13C of admission cam shaft 13 in lower section.Intercommunicating pore 125 and air inlet are convex
The axis 13C of wheel shaft 13 is above compared to configuration.The internal diameter of intercommunicating pore 126,127 is more than the internal diameter of intercommunicating pore 125.
Here, intercommunicating pore 126,127 of the configuration in lower section constitutes the present invention's compared with the axis 13C of admission cam shaft 13
Downside intercommunicating pore, the intercommunicating pore 125 of configuration above constitutes upside of the invention and connects compared with the axis 13C of admission cam shaft 13
Through-hole.
In addition, in Fig. 6, Fig. 7, intercommunicating pore 126,127 is configured on the direction of axis 13C prominent with sensing rotor 61
Go out the opposite positions portion 61A, i.e. configuration in position corresponding with the peripheral part of sensing rotor 61.
Include as a result, vacuum pump 82 as shown in Figure 3 the air of mist of oil that generates of bearing portion receiving room 124 to Fig. 6,
Sensing chamber 64 shown in Fig. 7 is not imported into after intercommunicating pore 125,126,127 to cam chamber with blocking after spraying by sensing rotor 61
63 spray.
In the following, illustration.In engine 1, lubricating oil is supplied to vacuum pump drive shaft 121, therefore include mist of oil
Air enters cam chamber 63 from bearing portion receiving room 124.Therefore, including the air of mist of oil is logical by blow-by gas from cam chamber 63
Road 131 flows into intake channel 130.
Therefore, in the engine of present embodiment 1, cylinder head 11 and petrolift mounting bracket 42 are in admission cam shaft 13
The left part sides 13a there is left side wall 33 and the 2nd side of sidewall portion 72, above-mentioned left side wall 33 and the 2nd side of sidewall portion 72 are by bearing portion
Receiving room 124 and cam chamber 63 separate, and above-mentioned bearing portion receiving room 124 is formed in vacuum pump 82 and stores bearing of vacuum cylinder portion
122。
In addition, left side wall 33 and the 2nd side of sidewall portion 72 have and are connected to bearing portion receiving room 124 with cam chamber 63 and will be true
Multiple intercommunicating pores 125,126,127 that the air that sky pump 82 is sucked is sprayed to cam chamber 63, and it is arranged to convex with pump driving
The side for taking turns 13B is opposite.
In addition, when being watched from the direction of the axis 13C of admission cam shaft 13, it will be in multiple intercommunicating pores 125,126,127
At least one intercommunicating pore configuration is in the position overlapped with pump driving cam 13B.
Engine 1 according to the present embodiment is set to left side when being watched from the direction of the axis 13C of admission cam shaft 13
The configuration of the intercommunicating pore 125,126,127 of wall portion 33 and the 2nd side of sidewall portion 72 makes in the position overlapped with pump driving cam 13B
Air from 82 side of vacuum pump improves flow velocity by intercommunicating pore 125,126,127 and collides pump driving cam 13B, thus
It can carry out gas-liquid separation.
Oil can be detached from the Efficient air before being imported to blow-by gas access 131 as a result,.As a result, can be from air
The mist of oil generated by vacuum pump 82 is efficiently separated, can prevent from generating sediment in intake valve 21.In addition, pressing rocking arm 19 etc.
The admission cam 13A of valve lifting device can not be leaned on due to the presence of the valves components such as valve lifting device, valve spring 22
The left side wall 33 of nearly cylinder head 11, so even the air from 82 side of vacuum pump is made to collide admission cam 13A, air collision
The speed of admission cam 13A can also become smaller, and be unable to get sufficient gas-liquid separation performance.And in the present embodiment, it is not present
Valve component, so as to make pump driving cam 13B close to left side wall 33, therefore impact velocity becomes faster, and can improve gas-liquid
Separating property.
In addition, in engine 1, oil lodges in the positions on the lower axis 13C than admission cam shaft 13 sometimes.
Therefore, the engine 1 of present embodiment has multiple intercommunicating pores 125,126,127, intercommunicating pore 126,127 and air inlet
Compared to configuration in lower section, intercommunicating pore 125 configures compared with the axis 13C of admission cam shaft 13 upper the axis 13C of camshaft 13
Side, the internal diameter of intercommunicating pore 126,127 are more than the internal diameter of intercommunicating pore 125.
Engine 1 according to the present embodiment, the internal diameter of intercommunicating pore 126,127 are more than the internal diameter of intercommunicating pore 125, therefore
In the case that oil lodges in the positions on the lower axis 13C than admission cam shaft 13, which can be passed through intercommunicating pore 126,127
Quickly discharge.
In addition, the plunger 52 of the petrolift 41 of engine 1 is pressurized from above by admission cam shaft 13.On the other hand, rocking arm 19
Admission cam shaft 13 is pressed from below.
The engine 1 of present embodiment stores admission cam shaft 13 by cylinder head 11 and petrolift mounting bracket 42,
Above-mentioned cylinder head 11 supports admission cam shaft 13 from below, above-mentioned petrolift mounting bracket 42 an end of cylinder head 11 from
Top covers admission cam shaft 13.
In addition, admission cam shaft 13 is by bearing support portion 33A and bearing support portion 72a supports and rotates freely, above-mentioned axis
It holds support portion 33A and bearing support portion 72a is formed between cylinder head 11 and petrolift mounting bracket 42.
Also, when being watched from the direction of the axis 13C of admission cam shaft 13, the petrolift of cam 13B drivings is driven by pump
41 plunger 52 and the rocking arm 19 driven by admission cam 13A are configured as opposite across admission cam shaft 13.
Engine 1 according to the present embodiment acts on the load F2 of admission cam shaft 13 from the plunger 52 of petrolift 41
Become opposite direction with the load F1 for acting on admission cam shaft 13 from rocking arm 19, therefore offsets.
Therefore, the negative of the bearing support portion 33A of the left side wall 33 and bearing support portion 72a of the 2nd side of sidewall portion 72 is acted on
Lotus is small, therefore can will be connected in a manner of not improving the load resistance of left side wall 33 and the 2nd side of sidewall portion 72 by stiffener etc.
Through-hole 125,126,127 is set to left side wall 33 and the 2nd side of sidewall portion 72.
Although disclosing embodiments of the present invention, it is understood that those skilled in the art can not depart from the present invention's
Apply change in the case of range.It is intended to for all this modifications and equivalent to be contained in the claim of the present invention.
Claims (3)
1. a kind of internal combustion engine, has：
Component is stored, camshaft is accommodated with, valve actuation cam and fuel pump driving cam is provided on the camshaft；
Petrolift is installed on above-mentioned storage component, is driven by above-mentioned fuel pump driving cam；And
Vacuum pump is installed on above-mentioned storage component, has the vacuum pump drive shaft engaged with an end of above-mentioned camshaft,
Bearing of vacuum cylinder portion and oil passage are set to above-mentioned vacuum pump, above-mentioned bearing of vacuum cylinder portion support above-mentioned vacuum pump drive shaft and
Vacuum pump drive shaft rotates freely, and above-mentioned oil passage supplies lubricating oil to above-mentioned bearing of vacuum cylinder portion,
The cam chamber for storing above-mentioned fuel pump driving cam is set to above-mentioned storage component,
Above-mentioned internal combustion engine has the blow-by gas access for connecting above-mentioned cam chamber with intake channel,
Characteristics of the above-mentioned internal combustion engines are that
Above-mentioned storage component in an end side of above-mentioned camshaft there is side wall, above-mentioned side wall to separate bearing portion receiving room and upper
Cam chamber is stated, above-mentioned bearing portion receiving room is formed in above-mentioned vacuum pump and stores above-mentioned bearing of vacuum cylinder portion,
Above-mentioned side wall has the air that above-mentioned bearing portion receiving room is connected to above-mentioned cam chamber and is sucked above-mentioned vacuum pump
The multiple intercommunicating pores sprayed to above-mentioned cam chamber, and it is located at the position opposite with the side of above-mentioned fuel pump driving cam,
When being watched from the axis direction of above-mentioned camshaft, at least one of above-mentioned multiple intercommunicating pores intercommunicating pore configuration with it is above-mentioned
The position that fuel pump driving cam overlaps.
2. internal combustion engine according to claim 1, which is characterized in that
Above-mentioned multiple intercommunicating pores are made of downside intercommunicating pore and upper communication hole, the axis of above-mentioned downside intercommunicating pore and above-mentioned camshaft
Compared to configuration in lower section, above-mentioned upper communication hole configures above line compared with the axis of above-mentioned camshaft,
The internal diameter of above-mentioned downside intercommunicating pore is more than the internal diameter of above-mentioned upper communication hole.
3. internal combustion engine according to claim 2, which is characterized in that
Above-mentioned storage component includes：Cylinder head supports above-mentioned camshaft from below；And petrolift mounting bracket, upper
An end for stating cylinder head covers from above above-mentioned camshaft,
Above-mentioned camshaft is supported and is revolved by the bearing support portion being formed between above-mentioned cylinder head and above-mentioned petrolift mounting bracket
Turn freely,
When being watched from the axis direction of above-mentioned camshaft, the plunger of the above-mentioned petrolift driven by above-mentioned fuel pump driving cam and
The phase on mutually opposite direction is configured to across above-mentioned camshaft by the valve lifting device of above-mentioned valve actuation actuated by cams
It is mutually opposite.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-038767 | 2015-02-27 | ||
| JP2015038767A JP6428378B2 (en) | 2015-02-27 | 2015-02-27 | Internal combustion engine |
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| Publication Number | Publication Date |
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| CN105927313A CN105927313A (en) | 2016-09-07 |
| CN105927313B true CN105927313B (en) | 2018-09-14 |
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| CN201610094638.5A Active CN105927313B (en) | 2015-02-27 | 2016-02-19 | Internal combustion engine |
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| JP (1) | JP6428378B2 (en) |
| CN (1) | CN105927313B (en) |
| DE (1) | DE102016202985B4 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291512A (en) * | 2013-06-07 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Support integrated with installation seat of fuel pump of gasoline engine |
| CN103790666A (en) * | 2014-02-26 | 2014-05-14 | 安徽江淮汽车股份有限公司 | High-performance low-emission diesel engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0517109U (en) * | 1991-08-21 | 1993-03-05 | ヤンマーデイーゼル株式会社 | Blow-by gas combustion chamber reduction device for engine |
| JP3633088B2 (en) * | 1996-03-29 | 2005-03-30 | マツダ株式会社 | Engine auxiliary equipment mounting structure |
| JP2004137901A (en) * | 2002-10-15 | 2004-05-13 | Toyota Motor Corp | Valve timing control device of internal combustion engine |
| JP2007138842A (en) * | 2005-11-18 | 2007-06-07 | Toyota Motor Corp | Negative pressure generating device |
| JP2009085119A (en) * | 2007-10-01 | 2009-04-23 | Mazda Motor Corp | Vacuum pump mounting structure |
| JP5381511B2 (en) * | 2009-08-28 | 2014-01-08 | マツダ株式会社 | Engine sensor rotor arrangement structure |
| JPWO2013080600A1 (en) | 2011-12-01 | 2015-04-27 | トヨタ自動車株式会社 | Internal combustion engine with a supercharger |
| JP2013147949A (en) * | 2012-01-17 | 2013-08-01 | Nippon Soken Inc | Blow-by gas processing device |
| JP2014181582A (en) * | 2013-03-18 | 2014-09-29 | Sanoh Industrial Co Ltd | Negative pressure pump integrated cylinder head cover |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291512A (en) * | 2013-06-07 | 2013-09-11 | 安徽江淮汽车股份有限公司 | Support integrated with installation seat of fuel pump of gasoline engine |
| CN103790666A (en) * | 2014-02-26 | 2014-05-14 | 安徽江淮汽车股份有限公司 | High-performance low-emission diesel engine |
Also Published As
| Publication number | Publication date |
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| DE102016202985B4 (en) | 2021-09-09 |
| CN105927313A (en) | 2016-09-07 |
| JP2016160798A (en) | 2016-09-05 |
| DE102016202985A1 (en) | 2016-09-01 |
| JP6428378B2 (en) | 2018-11-28 |
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