WO2015072035A1 - エンジンの過給機 - Google Patents
エンジンの過給機 Download PDFInfo
- Publication number
- WO2015072035A1 WO2015072035A1 PCT/JP2013/081039 JP2013081039W WO2015072035A1 WO 2015072035 A1 WO2015072035 A1 WO 2015072035A1 JP 2013081039 W JP2013081039 W JP 2013081039W WO 2015072035 A1 WO2015072035 A1 WO 2015072035A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- supercharger
- engine
- lubricating oil
- holder
- force generator
- Prior art date
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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
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/02—Drives of pumps; Varying pump drive gear ratio
- F02B39/04—Mechanical drives; Variable-gear-ratio drives
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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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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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
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
- F02B39/14—Lubrication of pumps; Safety measures therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0469—Bearings or seals
- F16H57/0471—Bearing
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- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0467—Elements of gearings to be lubricated, cooled or heated
- F16H57/0475—Engine and gearing, i.e. joint lubrication or cooling or heating thereof
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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
- F01M11/02—Arrangements of lubricant conduits
- F01M2011/021—Arrangements of lubricant conduits for lubricating auxiliaries, e.g. pumps or turbo chargers
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- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/0812—Fluid pressure
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- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0889—Path of movement of the finally actuated member
- F16H2007/0893—Circular path
-
- 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
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
Definitions
- the present invention relates to a supercharger that is driven by the rotational force of a crankshaft of an engine being transmitted by an endless belt-like power transmission member.
- Some engines equipped with a supercharger drive the supercharger by transmitting the rotational force of the crankshaft through an endless belt-like power transmission member such as a chain (for example, Patent Document 1).
- the present invention has been made in view of the above problems, and provides an engine supercharger that can improve the durability of a power transmission member even when rotation variation occurs in the power transmission member while having a simple structure.
- the purpose is to do.
- an engine supercharger is a supercharger that is driven by the rotational force of an engine crankshaft transmitted by an endless belt-like power transmission member.
- a part of the lubricating oil introduced into the supercharger lubricating oil passage, comprising a supercharger lubricating oil passage that guides the lubricating oil to the machine and a hydraulic urging force generation device that suppresses slack of the power transmission member Is supplied as a hydraulic pressure source to the urging force generator through the branch path.
- the sag of the power transmission member can be suppressed even when the rotational fluctuation is transmitted from the crankshaft. As a result, the durability of the power transmission member is improved. Further, since a part of the lubricating oil introduced to the supercharger is used for the urging force generator to lubricate the rotating part of the supercharger, it is possible to obtain a hydraulic pressure with a simple structure. .
- a biasing force generator mounting portion to which the biasing force generator is attached is further provided, and the branch path is formed in the biasing force generator mounting portion.
- the branch path for the urging force generating device is formed at the mounting portion of the urging force generating device, it is not necessary to separately provide a pipe from the hydraulic pressure source.
- lubricating oil is supplied only by attaching an urging
- the present invention further includes a supercharger holder that supports the supercharger rotating shaft and is detachably attached to the engine case, and the urging force generator is detachably attached to the supercharger holder. It is preferable. According to this structure, a supercharger can be handled independently as a supercharger unit including a biasing force generator. Thereby, switching between a supercharger-mounted engine and an engine without a supercharger can be easily performed.
- the engine is provided with a lubricating oil pump in the engine case, and the supercharger lubricating oil passage is formed through the mating surface between the supercharger holder and the engine case. It is preferable. In that case, it is preferable that the lubricating oil pump guides lubricating oil to a lubricated portion or a cooled portion of the engine. According to this configuration, the lubricating oil is supplied to the urging force generator simply by attaching the supercharger holder to the engine case. This further improves workability.
- the lubricating oil pump has a driving force transmitted directly or indirectly from the crankshaft. According to this configuration, since the discharge pressure of the lubricating oil pump changes according to the engine rotation speed, fluctuations in the power transmission device that increase as the engine rotation speed increases can be effectively suppressed by the urging force generator. .
- the urging force generator includes a pressing member that rotates about a pivot shaft to apply a pressing force to the power transmission member, and the pivot shaft is supported by the engine case. Preferably it is. According to this structure, since the pivot shaft is supported by the engine case, the strength of the supercharger holder can be reduced.
- a part of the lubricating oil before being supplied to the supercharger is branched and supplied to the hydraulic cylinder of the supercharger.
- the branch path is branched on the upstream side of the lubricated portion in the supercharger lubricating oil passage, so that it is possible to suppress a decrease in the lubricating oil pressure in the supercharger lubricating oil passage.
- FIG. 1 is a side view showing a motorcycle including a supercharger for an engine according to a first embodiment of the present invention. It is the perspective view which looked at the same engine from back diagonally upward. It is a side view showing the engine. It is a horizontal sectional view showing the turbocharger. It is the perspective view which looked at the state which removed the supercharger of the same engine from back diagonally upward. It is a horizontal sectional view which shows the supercharger holder of the supercharger. It is a side view which shows the supercharger.
- left side and right side refer to the left and right sides as viewed from the driver who gets on the vehicle.
- FIG. 1 is a left side view of a motorcycle equipped with an engine supercharger according to a first embodiment of the present invention.
- a body frame FR of the motorcycle has a main frame 1 that forms a front half and a rear frame 2 that forms a rear half.
- a head pipe 4 is provided at the front end of the main frame 1, and a front fork 8 is pivotally supported on the head pipe 4 via a steering shaft (not shown).
- a front wheel 10 is attached to the lower end portion of the front fork 8, and a steering handle 6 is fixed to the upper end portion of the front fork 8.
- a swing arm bracket 9 is provided at the rear end of the main frame 1 which is the lower center of the vehicle body frame FR.
- a swing arm 12 is pivotally supported around a pivot shaft 16 attached to the swing arm bracket 9 so as to be swingable up and down.
- a rear wheel 14 is rotatably supported at the rear end of the swing arm 12.
- An engine E is attached to the front side of the swing arm bracket 9 at the center lower part of the body frame FR. The engine E drives the rear wheel 14 via the drive chain 11.
- the engine E includes a crankshaft 26 having a rotation shaft extending in the left-right direction (vehicle width direction), a crankcase 28 that supports the crankshaft 26, a cylinder block 30 that protrudes upward from the front upper surface of the crankcase 28, An upper cylinder head 32 and an oil pan 34 provided below the crankcase 28 are provided.
- the crankcase 28 and the cylinder block 30 are integrally formed by molding.
- the crankcase 28, the cylinder block 30 and the cylinder head 32 constitute an engine case EC.
- a lubricating oil pump 29 is provided in the crankcase 28 of the engine E.
- the rotational force of the crankshaft 26 is transmitted to the rotating shaft 29 a of the lubricating oil pump 29, and the lubricating oil pump 29 is driven by the engine E.
- the lubricating oil pump 29 supplies lubricating oil to a lubricated part or a cooled part of the engine E via an engine lubricating oil passage (not shown) formed in the engine case EC.
- the lubricating oil pump 29 further supplies lubricating oil to a supercharger 42 described later.
- exhaust pipes 36 are connected to the front surface of the cylinder head 32. These four exhaust pipes 36 are gathered below the engine E and connected to an exhaust muffler 38 disposed on the right side of the rear wheel 14.
- the fuel tank 15 is arranged on the upper part of the main frame 1, and the driver's seat 18 and the passenger seat 20 are supported on the rear frame 2.
- a resin cowling 22 is mounted on the front of the vehicle body.
- the cowling 22 covers the front of the head pipe 4.
- An air intake 24 is formed in the cowling 22.
- the air intake 24 is located at the front end of the cowling 22 and takes in intake air from the outside to the engine E.
- An intake duct 50 is disposed on the left side of the body frame FR.
- the intake duct 50 is supported by the head pipe 4 in such a manner that the front end opening 50 a faces the air intake port 24 of the cowling 22.
- the air introduced from the front end opening 50a of the intake duct 50 is pressurized by the ram effect.
- An air cleaner 40 and a supercharger 42 for purifying outside air are arranged in the vehicle width direction on the upper surface of the crankcase 28 behind the cylinder block 30.
- the intake duct 50 passes from the front of the engine E to the left outer side of the cylinder block 30 and the cylinder head 32 and guides the traveling wind A as intake air I to the air cleaner 40.
- the supercharger 42 pressurizes clean air from the air cleaner 40 and supplies it to the engine E.
- the intake chamber 52 is disposed between the discharge port 48 of the supercharger 42 and the intake port 54 of the engine E, and the discharge port 48 of the supercharger 42 and the intake chamber 52 are directly connected.
- the intake chamber 52 stores the high-pressure intake air I supplied from the discharge port 48 of the supercharger 42.
- a throttle body 44 is disposed between the intake chamber 52 and the intake port 54.
- the intake chamber 52 is disposed above the supercharger 42 and the throttle body 44.
- the fuel tank 15 is disposed above the intake chamber 52 and the throttle body 44.
- the supercharger 42 is disposed adjacent to the right side of the air cleaner 40 and is fixed to the upper surface of the crankcase 28 by bolts 43.
- the suction port 46 of the supercharger 42 is located slightly above the center of the engine E in the width direction above the crankcase 28, and the discharge port 48 of the supercharger 42 is located at the center of the engine E in the vehicle width direction. ing.
- the supercharger 42 includes a centrifugal impeller 60 that pressurizes intake air, an impeller casing 62 that covers the impeller 60, a transmission mechanism 64 that transmits the power of the engine E to the impeller 60, and a supercharger rotating shaft. And a supercharger holder 66 for rotatably supporting 44. The supercharger holder 66 also covers the transmission mechanism 64.
- a turbocharger holder 66 is disposed on the right side in the vehicle width direction with the impeller casing 62 in between, and an air cleaner 40 is disposed on the left side.
- the transmission mechanism 64 may not be provided.
- the supercharger 42 is driven by the power of the engine E. Specifically, as shown in FIG. 3 which is a right side view of the engine, the rotational force of the crankshaft 26 is supplied via a chain 74 which is a kind of endless belt-like power transmission member to the supercharger rotating shaft 44 ( It is transmitted to the input shaft 65 connected to FIG. More specifically, an output side sprocket 71 is provided at the right end of the supercharger drive shaft 70 geared to the crankshaft 26, and an input side sprocket 76 is provided at the right end of the input shaft 65. A chain 74 is spanned between the sprockets 71 and 76.
- the turbocharger holder 66 is provided with a hydraulic tensioner 75 which is a kind of hydraulic urging force generation device that suppresses the slack of the chain 74.
- a tensioner mounting portion 72 that projects from the front upper portion of the supercharger holder 66 is integrally formed, and the tensioner mounting portion 72 has a hydraulic pressure that is a driving body of the hydraulic tensioner 75.
- a cylinder 77 is detachably attached by a fastening member 79 such as a bolt, covering the flange 81 with a cover 83. Details of the hydraulic tensioner 75 will be described later.
- the input shaft 65 is a hollow shaft, and is rotatably supported by the supercharger holder 66 via a bearing 78.
- Spline teeth 67 are formed on the outer peripheral surface of the right end 65b of the input shaft 65, and the input side sprocket 76 is connected to the input shaft 65 via a one-way clutch 80 that is spline-fitted to the outer peripheral surface. .
- An internal thread portion is formed on the inner peripheral surface of the right end portion 65b of the input shaft 65, and the one-way clutch 80 is connected to the right end portion via the washer 84 by the head of a bolt 82 screwed to the internal thread portion. It is attached to 65b.
- the input shaft 65 is an input side rotation shaft of the speed change mechanism 64.
- the impeller 60 is fixed to the left end portion 44 a of the supercharger rotating shaft 44 of the supercharger 42, and the left side portion of the supercharger rotating shaft 44 is connected to the left end portion 65 a of the input shaft 65 via the transmission mechanism 64. 44b is connected. That is, the transmission mechanism 64 is disposed between the input shaft 65 and the supercharger rotating shaft 44 and is supported by the supercharger holder 66. In this embodiment, a planetary gear device is used as the speed change mechanism 64, and the rotation of the input shaft 65 is increased and transmitted to the supercharger rotation shaft 44.
- the supercharger rotating shaft 44 is rotatably supported by a supercharger holder 66 through a bearing 69.
- the supercharger holder 66 includes an input case portion 66R that houses the input shaft 65, the input side sprocket 76, and the one-way clutch 80, and a gear case portion 66L that houses the speed change mechanism 54.
- the input case portion 66R and the gear case portion 66L. are connected using a bolt 88.
- the impeller housing 62 is coupled to the gear case portion 66 ⁇ / b> L of the supercharger holder 66 using the bolt 90.
- a supercharger lubricating oil passage 92 is formed in the supercharger holder 66 to introduce the lubricating oil OL supplied from the hydraulic pump 29 outside the supercharger 42 and guide the lubricating oil OL to the bearing 69 and the transmission mechanism 64.
- an outlet 94 a of a supercharger lubricating oil introduction passage 94 for introducing the lubricating oil from the lubricating oil pump 29 (FIG. 1) into the supercharger 42 is provided in the crankcase 28. It is formed on the mating surface 96 with the feeder holder 66.
- the lubricating oil OL that has exited the outlet 94a is supplied to the bearing 69 and also to the transmission mechanism 64 through a passage (not shown).
- the lubricating oil introduced into the supercharger 42 is added to the shaft support portion of the speed change mechanism (planetary gear device) 64, the tooth meshing portion, the input side sprocket 76, the chain 74 and the like in addition to the bearing 69. Have been supplied.
- lubricating oil is also supplied to the oil film damper via the supercharger lubricating oil passage 92. Also good. Lubricating oil is supplied to each of these parts from a hydraulic pump 29 of the engine E.
- the supercharger lubricant introduction passage 94 is directly connected to the supercharger lubricant passage 92 of the supercharger holder 66 from the outlet 94 a to supply the lubricant to the bearing 69.
- the supercharger lubricating oil passage 92 extends leftward from the input case portion 66R, extends radially inward within the gear case portion 66L, and supplies lubricating oil to the bearing 69 of the supercharger rotating shaft 44. is doing.
- the lubricating oil OL is supplied from the lubricating oil pump 29 (FIG. 1) to the supercharger lubricating oil passage 92.
- a tensioner lubricating oil passage 98 (FIG. 8) branched from the supercharger lubricating oil passage 92 is formed in the input case portion 66R.
- the tensioner lubricant passage 98 branches off from the supercharger lubricant passage 92. Specifically, the lubricating oil that has flowed upward from the outlet 94a branches at a branch point B into a supercharger lubricating oil passage 92 that is directed to the left side and a tensioner lubricating oil passage 98 that is directed upward.
- the tensioner lubricating oil passage 98 extends through the tensioner mounting portion 72 of the supercharger holder 66 and is connected to the hydraulic cylinder 77 of the hydraulic tensioner 75. That is, the tensioner lubricating oil passage 98 is branched upstream of the bearing 69 (lubricated portion) and the transmission mechanism 64 (lubricated portion) in the supercharger lubricating oil passage 92.
- the lubricating oil OL is introduced into the supercharger 42 from the input case portion 66 ⁇ / b> L via the outlet 94 a of the supercharger lubricating oil introduction passage 94, and is supplied to the bearing 69 and the hydraulic cylinder 75. ing.
- the tensioner lubricating oil passage 98 can be shortened.
- both the supercharger lubricating oil passage 92 and the tensioner lubricating oil passage 98 can be shortened. Further, since both the passages 92 and 98 are not external pipes, even if the liquid leaks, the lubricating oil does not leak out of the engine.
- the hydraulic tensioner 75 includes a pressing member 102 that rotates around the tensioner pivot shaft 100 to apply a pressing force to the chain 74, and a tensioner rod 103 that applies a pressing force to the pressing member 102. ing.
- the tensioner pivot shaft 100 is supported by the engine case EC.
- the tensioner rod 103 is advanced and retracted in the tensioner axial direction D by the power from the hydraulic cylinder 77 to adjust the pressing force applied to the pressing member 102.
- the pressing member 102 rotates around the tensioner pivot shaft 100 according to the pressing force applied from the tensioner rod 103 to apply the pressing force to the chain 74 and adjust the slack of the chain 74.
- the pressing force from the hydraulic cylinder 77 is determined by a command from an engine control unit (not shown) based on, for example, speed and acceleration.
- the chain 74 travels in the direction of the arrow X, and a guide member 104 for guiding the chain 74 is provided on the tension side TS opposite to the loose side LS where the hydraulic tensioner 75 is disposed.
- the guide member 104 is supported on the engine case EC by a bolt 106. By providing the guide member 104, the travel of the chain 74 is stabilized.
- the rotation direction of the chain 74 is set so that the slack side LS of the chain 74, that is, the side from which the chain 74 is led out from the output side sprocket 71 is positioned upward.
- the hydraulic tensioner 75 can be disposed above the crankcase 28.
- interference with equipment and members in the crankcase 28 can be prevented, so that the arrangement of the hydraulic tensioner 75 is facilitated as compared with the case where the hydraulic tensioner is arranged below the chain 74.
- the hydraulic tensioner by arranging the hydraulic tensioner above the chain 74, when the lubricating oil as a driving source hangs down from the hydraulic tensioner 75, such lubricating oil drops toward the chain 74, so that it is effective as a lubricating liquid. Available.
- a space can be formed between the cylinder block 30 and the supercharger 42, and the hydraulic tensioner 75 can be arranged in this space.
- the straight line L connecting the axes of the input / output side sprockets 76 and 71 is inclined upward toward the rear.
- the hydraulic tensioner 75 can be disposed so as to be inclined forward, so that the height at which the hydraulic cylinder 77 of the hydraulic tensioner 75 protrudes from the supercharger holder 66 can be suppressed.
- the angle formed by the straight line L and the horizontal plane is reduced. Thereby, since the tensioner axial direction D (pressing direction) of the hydraulic tensioner 75 approaches the vertical direction, interference between the cylinder block 30 and the hydraulic tensioner 75 can be avoided.
- tensioner lubricating oil passage 98 is formed in the hydraulic tensioner mounting portion 72 formed integrally with the supercharger holder 66, it is not necessary to separately provide piping from the hydraulic cylinder 77. Further, since the lubricating oil is supplied to the hydraulic cylinder 77 simply by attaching the hydraulic tensioner 75 to the attachment portion 72, workability is also improved.
- the supercharger 42 since the supercharger lubricating oil passage 92 is formed in the supercharger holder 66 and the hydraulic tensioner 75 is detachably attached to the supercharger holder 66, the supercharger 42 includes a supercharger 75 including the hydraulic tensioner 75. It can be handled independently as a machine unit. Thereby, switching between a supercharger-mounted engine and an engine without a supercharger can be easily performed.
- the lubricating oil OL is supplied from the lubricating oil pump 29 of the engine E to the supercharger lubricating oil passage 92, so that workability is further improved.
- the hydraulic tensioner 75 can effectively suppress the fluctuation of the chain 74 in FIG. 3 that increases as the rotational speed of the engine increases.
- the tensioner lubricating oil passage 98 is branched on the upstream side of the bearing 69 in the supercharger lubricating oil passage 92, so that the lubricating oil pressure in the supercharger lubricating oil passage 92 decreases. Can be suppressed.
- the present invention is suitably used for a supercharger to which power that is likely to generate pulsation is transmitted as a driving force. Specifically, it is preferably used when the power generated in the internal combustion engine is transmitted to the supercharger.
- the present invention is not limited to the above embodiment, and various additions, changes, or deletions are possible without departing from the gist of the present invention.
- the present invention in the above-described embodiment, an example in which the present invention is applied to an engine of a motorcycle has been described.
- the supercharger of the present invention can be applied to engines other than motorcycles, such as ships, ships, and the like. It can also be applied to.
- an edge belt may be used instead of the chain 74. Therefore, such a thing is also included in the scope of the present invention.
Abstract
Description
29 ポンプ
29a ポンプの回転軸
37 エンジン潤滑油通路
42 過給機
44 過給機回転軸
66 過給機ホルダ
72 油圧テンショナ取付部(付勢力発生装置取付部)
74 チェーン(動力伝達部材)
75 油圧テンショナ(付勢力発生装置)
77 油圧シリンダ
92 過給機潤滑油通路
98 テンショナ潤滑油通路(分岐路)
100 テンショナピボット軸
102 押圧部材
E エンジン
EC エンジンケース
OL 潤滑油
Claims (8)
- エンジンのクランク軸の回転力が無端帯状の動力伝達部材により伝達されることで駆動される過給機であって、
過給機に潤滑油を導く過給機潤滑油通路と、
前記動力伝達部材のたるみを抑制する油圧式の付勢力発生装置と、を備え、
前記過給機潤滑油通路に導入される潤滑油の一部が分岐路を通って前記付勢力発生装置に油圧源として供給されているエンジンの過給機。 - 請求項1に記載のエンジンの過給機において、さらに、前記付勢力発生装置が取り付けられる付勢力発生装置取付部を備え、
この付勢力発生装置取付部に、前記分岐路が形成されているエンジンの過給機。 - 請求項1または2に記載のエンジンの過給機において、さらに、過給機回転軸を支持してエンジンケースに着脱自在に取り付けられる過給機ホルダを備え、
前記付勢力発生装置が、前記過給機ホルダに着脱自在に取り付けられているエンジンの過給機。 - 請求項3に記載のエンジンの過給機において、前記エンジンは、エンジンケース内に潤滑油ポンプを搭載し、
前記過給機ホルダと前記エンジンケースとの合わせ面を貫通して前記過給機潤滑油通路が形成されているエンジンの過給機。 - 請求項4に記載のエンジンの過給機において、前記潤滑油ポンプは、前記エンジンの被潤滑部または被冷却部に潤滑油を導くものであるエンジンの過給機。
- 請求項4または5に記載のエンジンの過給機において、前記潤滑油ポンプは、前記クランク軸から直接的または間接的に駆動力が伝達されているエンジンの過給機。
- 請求項3から6のいずれか一項に記載のエンジンの過給機において、前記付勢力発生装置は、ピボット軸を中心に回動して前記動力伝達部材に押圧力を与える押圧部材を有し、
前記ピボット軸が前記エンジンケースに支持されているエンジンの過給機。 - 請求項1から7のいずれか一項に記載のエンジンの過給機において、前記過給機の軸受部に供給される前の潤滑油の一部を分岐して前記付勢力発生装置に供給しているエンジンの過給機。
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JP2015547370A JP6204489B2 (ja) | 2013-11-18 | 2013-11-18 | エンジンの過給機 |
CN201380080981.9A CN105793540B (zh) | 2013-11-18 | 2013-11-18 | 发动机的增压器 |
EP13897686.5A EP3073094B1 (en) | 2013-11-18 | 2013-11-18 | Supercharger for engine |
PCT/JP2013/081039 WO2015072035A1 (ja) | 2013-11-18 | 2013-11-18 | エンジンの過給機 |
JP2014222865A JP6437788B2 (ja) | 2013-11-18 | 2014-10-31 | エンジンの過給機 |
PCT/JP2014/080311 WO2015072561A1 (ja) | 2013-11-18 | 2014-11-17 | エンジンの過給機 |
EP14861748.3A EP3073093B1 (en) | 2013-11-18 | 2014-11-17 | Engine supercharger |
CN201480061655.8A CN105723069B (zh) | 2013-11-18 | 2014-11-17 | 发动机的增压器 |
US15/085,846 US10247090B2 (en) | 2013-11-18 | 2016-03-30 | Supercharger for engine |
US15/087,931 US10012140B2 (en) | 2013-11-18 | 2016-03-31 | Engine supercharger |
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JPWO2015072035A1 (ja) | 2017-03-09 |
EP3073094A1 (en) | 2016-09-28 |
JP6204489B2 (ja) | 2017-09-27 |
US10247090B2 (en) | 2019-04-02 |
EP3073094B1 (en) | 2018-10-10 |
CN105793540B (zh) | 2019-01-29 |
US20160208683A1 (en) | 2016-07-21 |
CN105793540A (zh) | 2016-07-20 |
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