CN102822457A - Pathway structure of engine induction system - Google Patents

Pathway structure of engine induction system Download PDF

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Publication number
CN102822457A
CN102822457A CN2011800178850A CN201180017885A CN102822457A CN 102822457 A CN102822457 A CN 102822457A CN 2011800178850 A CN2011800178850 A CN 2011800178850A CN 201180017885 A CN201180017885 A CN 201180017885A CN 102822457 A CN102822457 A CN 102822457A
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CN
China
Prior art keywords
motor
air
handling system
gas handling
strainer
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Granted
Application number
CN2011800178850A
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Chinese (zh)
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CN102822457B (en
Inventor
村松刚吉
滨泽康平
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Suzuki Motor Corp
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Suzuki Motor Corp
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Publication date
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Publication of CN102822457A publication Critical patent/CN102822457A/en
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Publication of CN102822457B publication Critical patent/CN102822457B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/02Crankcase ventilating or breathing by means of additional source of positive or negative pressure
    • F01M13/021Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure
    • F01M13/022Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction
    • F01M13/025Crankcase ventilating or breathing by means of additional source of positive or negative pressure of negative pressure using engine inlet suction with an inlet-conduit via an air-filter

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Abstract

The disclosed pathway structure of an engine induction system comprises: an air cleaner (15) disposed above a crank case (13); a carburetor (18) that is connected to an intake pathway that is lead to the front of the air cleaner (15); and an intake tube (19) that connects the carburetor (18) and the intake port of a cylinder head (13B); and has a breather hose (23) that is connected to a cylinder head cover (12A) and that is lead to the front of the air cleaner (15). The breather hose (23) passes above a throttle position sensor (22) in a lateral view, and is disposed in a manner so as to consistently descend towards the cylinder head. As a result, a pathway structure of an engine induction system is provided that achieves an appropriate tube disposition while being compact.

Description

The gas handling system passway structure of motor
Technical field
The present invention relates to the structure of the gas handling system path of motor in the vehicles such as a kind of motorcycle.
Background technique
In petrol engine etc.; Become the reason of motor oil deterioration and corrosion of metal even pollution of atmosphere owing to so-called gas blowby; Therefore, mix with new mixed gas and burn through making it be back to the air inlet side, thereby avoid under this state, being discharged in the atmosphere.
In the motor of the record of patent documentation 1 grade for example, constitute: on valve mechanism cover, be provided with vent box, with gas blowby from the ventilation inlet that runs through valve mechanism cover in vent box oil separation chamber and aeration vent and import the gas handling system of motor.
In addition, in the vehicle of the motorcycle of handy type etc., a kind of such motor is arranged: above crankcase, dispose air-strainer, the front surface of air-strainer with inlet air pathway forwards straight line shape extend.And, on valve mechanism cover, be provided with ventilation chamber, when when air-strainer is opened, need the steam hose that both are combined.For the ventilation in the flexible pipe of steam hose is turned back to motor with oil, preferably make the open end of air-strainer higher, and be configured to not become the paddy shape in the hose arrangement interval than ventilation chamber.
Patent documentation 1: japanese kokai publication hei 10-220215 communique
But, when the configuration steam hose, may intersect with other parts (for example secondary air flexible pipe, adjacent component etc.), in order to guarantee the gap at cross part, see the pipe arrangement that on the motor left and right directions, may become wider width from above.Especially in the handy type vehicle with oscillating engine (power unit) etc., must consider when on by the compactness vehicle, carrying, to avoid interfering with each parts.Reality does, therefore takes to avoid the measure interfered with other parts etc. through set the bending points at a plurality of positions of steam hose, and the result has to make cost to rise.
Summary of the invention
In light of this situation, the object of the present invention is to provide a kind of gas handling system passway structure of motor, it is comparatively compact and can realize suitable pipe arrangement.
The motor of the gas handling system passway structure of motor of the present invention has the cylinder of approximate horizontal earth tilt forwards, and the gas handling system passway structure of this motor comprises: the air-strainer that is configured in the top of crankcase; The Carburetor that is connected with the inlet air pathway of deriving to the place ahead of this air-strainer; The suction tude that connects the suction port of this Carburetor and cylinder head; The characteristics of the gas handling system passway structure of this motor are; Have the steam hose of deriving and being connected with valve mechanism cover to the place ahead of said air-strainer, this steam hose is configured under side-looking, above TPS, pass through and descend to cylinder head all the time.
In addition, in the gas handling system passway structure of motor of the present invention, said steam hose is configured in side-looking and overlooks down all roughly linearly shape, and with said inlet air pathway almost parallel in fact.
In addition, in the gas handling system passway structure of motor of the present invention, the secondary air hose arrangement that couples together between secondary air cut-off valve and the said air-strainer become under side-looking below said TPS, pass through.
In addition, in the gas handling system passway structure of motor of the present invention, be provided with recess, be connected with said steam hose at this recess in the end face bight of valve mechanism cover.
The invention effect:
Adopt the present invention, utilize the steam hose that is configured to descend all the time, can make oil content contained in the gas blowby suitably and swimmingly turn back to ventilation chamber, can reduce oily consumption effectively, prevent burn deterioration.In addition, when pipe arrangement, can reduce the quantity at hose bending position effectively.In this case, can separate, can realize compactness with the secondary air flexible pipe.
Description of drawings
Fig. 1 is the integrally-built side view of expression motorcycle of the present invention.
Fig. 2 is the stereogram of configuration example of the vehicle body frame of expression motorcycle of the present invention.
Fig. 3 is the side view of configuration example of the power unit of lift-launch on vehicle body frame of expression motorcycle of the present invention.
Fig. 4 is the plan view of the power unit of motorcycle of the present invention.
Fig. 5 is the plan view of the power unit of motorcycle of the present invention.
Fig. 6 is the major component stereogram of the gas handling system passway structure of motorcycle of the present invention.
Fig. 7 is the major component side view of the gas handling system passway structure of motorcycle of the present invention.
Fig. 8 is the major component plan view of the gas handling system passway structure of motorcycle of the present invention.
Embodiment
Below, the preferred embodiments of the gas handling system passway structure of motor of the present invention is described according to accompanying drawing.
Fig. 1 is the side view of motorcycle of the present invention.The overall structure of motorcycle at first, is described with Fig. 1.In addition, comprise Fig. 1, in following explanation, in the used diagrammatic sketch, represent the place ahead of vehicle as required with arrow Fr, represent the rear of vehicle, in addition, represent the right side of vehicle, represent the left side of vehicle with arrow L with arrow R with arrow Rr interior.
A plurality of vehicle body frames that vehicle 100 utilization is made into by steel or aluminum alloy form body framing, be installed on the vehicle body frame through various parts and constitute.In addition, as the configuration example of vehicle body frame, also suitably with reference to Fig. 2.As the front end of the following pipe 101 of the part of vehicle body frame with turn to before pipe 102 combines, and pipe 102 roughly extends downwards before turn to, following pipe 101 is connected with bottom frame 103 near the underpart, bottom frame 103 is extension rearward roughly.Be combined with the afterframe that constitutes pairing left and right 104 in the rear portion side of managing 101 down as a vehicle body frame part, and separately roughly to the back upper place diagonally extending.
Pipe 102 rotatably support front forks 105 are fixed with operating handle 106 in the upper end of front fork 105 before turning to, and at lower end side rotatably support front-wheel 107.Brake disc 108 with its one rotation is housed on front-wheel 107.
In addition; Refer again to Fig. 3; Set up in the rear end of bottom frame 103 to be formed with and support the carriage 109 of usefulness at interior power unit 10, the swing type power unit 10 that can on above-below direction, swing around swing axis 111 through support 110 supportings that are located on this carriage 109 comprising motor 11.Power unit 10 is the cylinder assembly 12 of motor 11, crankcase 13 and the transmission device that is built-in with electrodeless variable-speed motor 14 made by belt/pulley to be given blocking form; At its vehicle front side support 110 that has been pivotably connected, utilize transmission device 14 and be supported to trailing wheel 112 rotatable in the rear view of vehicle side.Be connected by vibration damper 113 between the axletree side of trailing wheel 112 and the afterframe 104, whole and play the function of swing arm as power unit 10.
In addition, as shown in Figure 1, above power unit 10, be provided with the seat 114 that the jockey takes a seat usefulness, above bottom frame 103, be landed in jockey on the seat 114 and carry the pedal 115 of pin and support by running-board bracket 116 (with reference to Fig. 2).In addition, pedal 115 forms as one with the leg mask that constitutes vehicle appearance.In addition, between power unit 10 and seat 114, have and form the trunk 117 that utilizes the accommodation space of taking in article etc. that seat 114 opens and closes.
As vehicle appearance, various car body covers are supported the suitable position that covers vehicle body frame etc.Foreleg covering 118 covers vehicle front surface side and direction finder etc. is installed, and fuses with above-mentioned pedal 115.Below to the rear view of vehicle side at afterframe cover 119 covering seats 114 also is equipped with direction finder and brake lamp.The top of front-wheel 107 and trailing wheel 112 is covered by front mudguard 120 and rear mudguard 121 respectively.
Below, further specify power unit 10 with reference to Fig. 3~Fig. 5.At power unit 10 particularly in its gas handling system, be equipped with air-strainer 15 in the upper surface side of the transmission device that is positioned at the rear view of vehicle side 14.This air-strainer 15 roughly is distortion case shape, and air is taken into pipe 16 and near the front portion, left side, extends, and the front portion is connected with air induction hose 17, Carburetor 18 and suction tude (sucking pipe) 19 in turn to its place ahead from taking over.Here, cylinder assembly 12 combines valve mechanism cover 12A, cylinder head 12B and cylinder 12C to form successively.Suction port (intakeport) in the cylinder head 12B of suction tude 19 and cylinder assembly 12 is communicated with, through the inlet air pathway that is made up of these parts, and will be supplied to the suction port of cylinder head 12B by the air of air-strainer 15 purifications.In addition,, on suction tude 19, erect and be provided with fuel injection system, with to tuned port injection fuel though detailed diagram is omitted.In addition, be formed with relief opening in the lower face side of cylinder assembly 12, outlet pipe rearward extends from here agley, and is connected with baffler at rear view of vehicle.
Power unit 10 comprises cylinder assembly 12, crankcase 13 and transmission device 14 and with they integrated forming as stated.Carry under the state on the vehicle 100 at power unit 10, constitute from the tactic configuration of vehicle front side according to cylinder assembly 12, crankcase 13, transmission device 14.Contain the air cooled engine of single cylinder at cylinder assembly 12, cylinder-bore axis is configured to approximate horizontal along the vehicle fore-and-aft direction.
As stated; Upside at power unit 10 (cylinder assembly 12); Separate proper spacing and forwards constitute the inlet air pathway of being made up of air induction hose 17, Carburetor 18 and suction tude 19 from air-strainer 15, (Fig. 5) was along the straight line shape of cylinder-bore axis roughly when this inlet air pathway was configured to overlook.In this case, Carburetor 18 is connected with suction tude 19 with the approximate horizontal state, and this suction tude 19 separates proper spacing at the upside of cylinder head 12B and is configured in the central part on the cylinder left and right directions roughly.In addition, the toe lateral of suction tude 19 is connected with the suction port of cylinder head 12B side with crooked downwards state.
Refer again to Fig. 6~Fig. 8, the gas handling system periphery in the power unit 10 is described.At first, herein, be formed with inlet air pathway (a part) at the internal run-through of Carburetor 18, and in this inlet air pathway closure be supported to can be around its running shaft rotation.According to the angle of swing of closure the aperture of inlet air pathway is changed, with convection current downstream the outflow air quantity of side control.
Shown in Fig. 8 waits, dispose the closure pulley 20 that is connected with the running shaft of closure in the outside of Carburetor 18 (being the right side in the present example).On closure pulley 20, be connected with the closure hawser, utilize the operation of the throttle control handle for example be located on the operating handle 106 etc. to rotate and drive closure pulley 20, can carry out open and close controlling closure through the closure hawser.In addition, closure pulley 20 receives the application of force of the elastic force of torsion spring 21 (with reference to Fig. 8 etc.) to Return-ing direction, automatically resets.In addition, the outside in the side opposite with closure pulley 20 of Carburetor 18 is equipped with the TPS 22 as the throttle opening detection device.As this TPS 22, also constitute with for example rotary encoder etc.
In addition, be connected by steam hose 23 between valve mechanism cover 12A and the air-strainer 15.In this case, steam hose 23 is derived and is connected with valve mechanism cover 12 to the place ahead of air-strainer 15, and is configured to left side at Carburetor 18 under side-looking (with reference to Fig. 7 etc.) and above TPS 22, passes through, and descends to cylinder head 12B all the time.And, as shown in Figure 8, to overlook down, pipeline is configured to and the inlet air pathway almost parallel of being made up of air induction hose 17, Carburetor 18 and suction tude 19.In addition, be provided with recess 24, be equipped with at the sidewall 24a of this recess 24 and connect with pipe joint 25 in the bight, upper left side of the end face of valve mechanism cover 12A, and for this pipe joint 25 from the left side connection steam hose 23.In addition, set corresponding cylinder housing 12A inboard, position with pipe joint 25 and be provided with ventilation chamber being connected with this.
Be connected by secondary air flexible pipe 26 again between valve mechanism cover 12A and the air-strainer 15.In this case, set secondary air cut-off valve 27 midway at secondary air flexible pipe 26.With the secondary air flexible pipe 26A that couples together between secondary air cut-off valve 27 and the air-strainer 15 in the left side of Carburetor 18 under side-looking (with reference to Fig. 7 etc.) below TPS 22 through and be configured to curved shape to fovea superior.So, steam hose 23 and secondary air flexible pipe 26 (secondary air flexible pipe 26A) all are configured in the left side of Carburetor 18,, are not configured in the right side that disposes as the closure pulley 20 of movable member that is.
In addition, the toe lateral of secondary air flexible pipe 26 is to be connected with joint 28 on the end face that is located at valve mechanism cover 12A from the crooked downwards state of secondary air cut-off valve 27.In addition, the mounting bracket 29 that is fixed in Carburetor 18 tops roughly forwards extends, and supports fixedly secondary air cut-off valve 27 by this mounting bracket 29.
Adopt the gas handling system passway structure of said structure; At first steam hose 23 is configured to descend to cylinder head 12B all the time from air-strainer 15 as stated; Thus, can oil content contained in the gas blowby suitably and swimmingly be turned back to ventilation chamber, can reduce oily consumption effectively, prevent burn deterioration.
In this case; Be configured to above TPS 22, pass through through pipeline; And secondary air flexible pipe 26 especially secondary air flexible pipe 26A is configured to below TPS 22, pass through by pipeline; Thus, can both be separated, can effectively utilize than TPS 22 space on top more.
In addition, because steam hose 23 is configured to all the time to descend to cylinder head 12B,, carrying out effectively to reduce the quantity at hose bending position when pipeline disposes so can pipeline be configured in side-looking and overlook down all roughly linearly shape.
In addition, as stated, secondary air flexible pipe 26A is configured to below TPS 22, pass through by pipeline, can effectively utilize the lower space of TPS 22 with the correlation of steam hose 23 both are separated.Through secondary air flexible pipe 26 is fixed on cylinder head 12B or cylinder block, thereby the swing of secondary air flexible pipe 26 can suppress running the time is avoided and the contacting or interference of circumferential component.
Under above-mentioned situation, be provided with closure pulley 20 in a side of Carburetor 18, dispose the steam hose 23 with the inlet air pathway almost parallel at the opposite side of Carburetor 18.Thus, can avoid the interference of movable closure pulley 20 and steam hose 23, guarantee the suitable and safe action of parts.Steam hose 23 grades are being located under the situation of closure pulley 20 sides temporarily, for the devices spaced apart such as interference of avoiding both be configured, configuration space must not be constant big.Through being configured in the opposition side of closure pulley 20 movable members such as grade, can save the space substantially.
In addition, be provided with recess 24, on the sidewall 24a of recess 24, connect steam hose 23, thereby can be formed in the compact structure of overlooking down on the motor left and right directions of width through end face at valve mechanism cover 12A.
In addition, through configuration steam hose 23 above the TPS 22, below configuration secondary air flexible pipe 26, thereby can reduce flexible pipe interference each other, this point also can be made the compact pipeline configuration of width on above-below direction.
Comprise the compactness around interior pipe arrangement such as steam hose 23 and secondary air flexible pipe 26 through realization, thereby make power unit 10 integral body also can make compact structure.Especially of this example, swing type power unit 10 is swung on above-below direction.Through with doing compactly around the pipe arrangement, thus, can prevent effectively by with the generation of the caused faults such as interference of peripheral parts such as afterframe 104, trunk 117, prevent trouble before it happens.
In addition; So with the hose arrangement compactness; And clear and definite each flexible pipe separately; Can reduce the contact of flexible pipe between mutually thus, make the flexible pipe total length form shortlyer in fact, this point also have the quantity that can reduce the hose bending position effectively so that can reduce cost or reduce bending fixture with and advantage such as bending operation.
More than, in conjunction with various mode of executions the present invention has been described, but the present invention is not limited to these mode of executions, can do change etc. within the scope of the invention.
For example, although the connection of understanding recess 24 connects the example of steam hose 23 with pipe joint 25 from the left side, but also can connect in addition from the left side according to the configuration of pipe joint 25.
Practicability on the industry:
The present invention is applicable to the structure of gas handling system path of the motor of vehicles such as motorcycle; The steam hose that utilization is configured to descend all the time; And can oil content contained in the gas blowby suitably and swimmingly be turned back to ventilation chamber, can reduce the consumption of oil effectively and prevent burn deterioration.In addition, when carrying out the pipeline configuration, can effectively reduce the quantity at hose bending position.In this case, can separate, can realize compactness with the secondary air flexible pipe.

Claims (4)

1. the gas handling system passway structure of a motor, this motor has the cylinder of approximate horizontal earth tilt forwards, and the gas handling system passway structure of this motor comprises: the air-strainer that is configured in the top of crankcase; The Carburetor that is connected with the inlet air pathway of deriving to the place ahead of this air-strainer; The suction tude that connects the suction port of this Carburetor and cylinder head, the gas handling system passway structure of this motor be characterised in that,
Have the steam hose of deriving and being connected with valve mechanism cover to the place ahead of said air-strainer, this steam hose is configured under side-looking, above TPS, pass through and descend to cylinder head all the time.
2. the gas handling system passway structure of motor as claimed in claim 1 is characterized in that, said steam hose is configured in side-looking and overlooks down all roughly linearly shape, and with said inlet air pathway almost parallel in fact.
3. the gas handling system passway structure of motor as claimed in claim 1; It is characterized in that, the secondary air hose arrangement that couples together between secondary air cut-off valve and the said air-strainer is become under side-looking below said TPS, pass through.
4. the gas handling system passway structure of motor as claimed in claim 1 is characterized in that, is provided with recess in the end face bight of valve mechanism cover, is connected with said steam hose at this recess.
CN201180017885.0A 2010-04-23 2011-04-12 The gas handling system passway structure of motor Expired - Fee Related CN102822457B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2010100136A JP4670996B1 (en) 2010-04-23 2010-04-23 Engine intake system passage structure
JP2010-100136 2010-04-23
PCT/JP2011/059048 WO2011132562A1 (en) 2010-04-23 2011-04-12 Pathway structure of engine induction system

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CN102822457A true CN102822457A (en) 2012-12-12
CN102822457B CN102822457B (en) 2015-08-12

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WO2023188279A1 (en) * 2022-03-31 2023-10-05 本田技研工業株式会社 Intake structure for internal combustion engine

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CN1521036A (en) * 2003-01-10 2004-08-18 ���\�й�ҵ��ʽ���� Installing structure of fuel injection equipment for motor of pony sized vehicle
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WO2011132562A1 (en) 2011-10-27
CN102822457B (en) 2015-08-12
JP2011231630A (en) 2011-11-17
JP4670996B1 (en) 2011-04-13

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