WO2012147237A1 - エンジンのガバナ装置 - Google Patents

エンジンのガバナ装置 Download PDF

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Publication number
WO2012147237A1
WO2012147237A1 PCT/JP2011/080429 JP2011080429W WO2012147237A1 WO 2012147237 A1 WO2012147237 A1 WO 2012147237A1 JP 2011080429 W JP2011080429 W JP 2011080429W WO 2012147237 A1 WO2012147237 A1 WO 2012147237A1
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WO
WIPO (PCT)
Prior art keywords
governor
governor lever
lever
torsion spring
engine
Prior art date
Application number
PCT/JP2011/080429
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English (en)
French (fr)
Japanese (ja)
Inventor
延広 渡辺
Original Assignee
ヤンマー株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ヤンマー株式会社 filed Critical ヤンマー株式会社
Priority to CN201180070379.8A priority Critical patent/CN103502606B/zh
Publication of WO2012147237A1 publication Critical patent/WO2012147237A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D1/00—Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/04—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered by mechanical means dependent on engine speed, e.g. using centrifugal governors
    • F02D1/045—Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered by mechanical means dependent on engine speed, e.g. using centrifugal governors characterised by arrangement of springs or weights

Definitions

  • the present invention relates to an engine governor device.
  • Patent Document 1 discloses a first governor lever that is connected to a control rack that adjusts the fuel injection amount of a fuel injection pump and that rotates in conjunction with a governor weight, and is rotatable with respect to the first governor lever.
  • a second governor lever having a pair of arms, a torsion spring interposed between the first governor lever and the second governor lever, and a first governor lever projecting from the second governor lever so as to be movable by an angle stroke.
  • a governor device is disclosed that includes an Anglich pin that can be brought into contact with the torsion spring and to which one arm end portion of the torsion spring is locked.
  • the control rack moves in a direction to increase the fuel injection amount, and the first governor lever rotates in the other rotation direction. As a result, the control rack moves in the direction of decreasing the fuel injection amount.
  • one rotation direction of the first governor lever is referred to as an “increasing direction”, and the other rotation direction is referred to as a “decreasing direction”.
  • the first governor lever is held at the position rotated in the increasing direction by the angle of the Anglich stroke when the first governor lever comes into contact with the An Eisen pin. Thereby, since the fuel injection amount in the region where the engine speed is low increases, the engine output in the low speed region can be increased.
  • the load (the thrust load of the governor weight) that the first governor lever pushes the angle pin in the anti-projection direction rather than the initial biasing force of the torsion spring (hereinafter referred to as “set load”). Since this is smaller, the first governor lever is held at a position rotated in the increasing direction by the amount of the angle stroke. As a result, the control rack moves in the direction of increasing the fuel injection amount, and the fuel injection amount is increased, as compared with the case where the Anglich pin does not protrude by the Anglich stroke.
  • the first governor lever pushes the angler pin in the anti-protruding direction and moves in the other direction by the angler stroke. Rotate. As a result, the control rack moves in the direction of decreasing the fuel injection amount, and the fuel injection amount decreases.
  • the torsion angle is By increasing it, it is not possible to set the engine speed at which the adjustment for increasing the fuel injection amount is performed by reducing the set load of the torsion spring.
  • the present invention has been made in view of the above situation, and provides an engine governor device capable of adjusting the set load of a torsion spring and setting the engine speed at which adjustment for increasing the fuel injection amount is performed.
  • the purpose is to provide.
  • the first governor lever is connected to a control rack for adjusting the fuel injection amount of the fuel injection pump and is rotated in conjunction with the governor weight, and is rotatable with respect to the first governor lever.
  • An engine governor device comprising an Anglich pin that is capable of contacting the first governor lever and that engages one end of the torsion spring, and is pivotally supported by the first governor lever. And a movable member to which the other arm end of the torsion spring is locked, and the movable member And positioning means for positioning a plurality of rotational positions, in which comprises a.
  • the positioning means includes a convex portion provided on the movable member, and a plurality of fitting portions that are provided on the first governor lever and engage with the convex portion.
  • a fitting part is arrange
  • the movable member is provided with a protrusion, and the protrusion becomes a handle when the movable member is rotated, and comes into contact with the second governor lever.
  • the rotation of the first governor lever is limited.
  • the set load of the torsion spring can be easily adjusted by rotating the movable member using the protrusion. Further, by providing the movable member with a protrusion for restricting the rotation of the first governor lever, it is not necessary to provide such a protrusion on the first governor lever, so that the structure of the first governor lever can be simplified. it can.
  • FIG. 4 is an end view at the AA position in FIG. 3.
  • the front view which shows the right half part of the governor apparatus which concerns on one Embodiment of this invention.
  • the arrow B figure in FIG. The figure which shows a movable piece, (a) Top view, (b) Front view. The top view which shows a fitting hole row
  • the plane partial sectional view showing the operating state of the governor device concerning one embodiment of the present invention, (a) The figure showing the state at the time of engine starting, (b) The state where the 1st governor lever is in contact with the angle pin FIG.
  • the figure at the time of positioning (c) The figure at the time of a movable piece being positioned in the position of the 3rd fitting hole.
  • the figure which shows the relationship between an engine speed, an engine output, and fuel injection quantity (a) A figure when a movable piece is positioned in the position of a 2nd fitting hole, (b) A movable piece is a 3rd fitting hole. The figure at the time of positioning to a position.
  • the axial direction of the crankshaft 11 of the engine 2 is the front-rear direction
  • the direction indicated by the arrow U in FIG. 1 is “upward”
  • the direction indicated by the arrow L is “leftward”
  • the arrow F in FIG. The direction indicated by is called “forward”.
  • the engine 2 is a so-called horizontal water-cooled engine, and includes a cylinder block 3, a cylinder head 4, an air cleaner 5, a muffler 6, a fuel tank 7, a cooling water tank 8, a fuel injection pump 9, and a governor device 1.
  • the gear case 10 or the like is housed.
  • the crankshaft 11 is installed in the cylinder block 3 in the front-rear direction.
  • the crankshaft 11 is rotatably supported by the cylinder block 3 via a bearing (not shown), and rotates by receiving power from a piston (not shown) that reciprocates left and right.
  • a cylinder head 4 is provided on the right side of the cylinder block 3.
  • Above the cylinder head 4, an air cleaner 5 and a muffler 6 are provided side by side.
  • a fuel tank 7 and a cooling water tank 8 are provided side by side on the upper side of the cylinder block 3, and a fuel injection pump 9 and a gear case 10 are provided on the front side of the cylinder block 3.
  • crank gear 12 is provided on the crankshaft 11 protruding from the cylinder block 3 into the gear case 10
  • cam gear 13 is provided on the camshaft 14 of the fuel injection pump 9.
  • the governor device 1 includes a governor weight 15, a governor sleeve 16, a first governor lever 17, a second governor lever 18, an angle pin 19, a torsion spring 20, a movable piece 21, and a limiting bolt 22.
  • the governor weight 15 is attached to the crankshaft 11 via the weight holder 23.
  • the governor weight 15 is movable in the centrifugal direction of the crankshaft 11 by the centrifugal force accompanying the rotation of the crankshaft 11.
  • the governor sleeve 16 is externally fitted to the crankshaft 11 so as to be slidable in the axial direction of the crankshaft 11.
  • the first governor lever 17 includes a lever body 171 and a fork 172.
  • the lever body 171 is fixed to the governor lever shaft 24 pivotally supported by the gear case 10 with screws 25 and 25.
  • the lever body 171 is formed with screw holes 171A and 171A into which the screws 25 and 25 are inserted. Further, at the base end portion of the lever main body 171, a substantially semicircular fitting groove 171 ⁇ / b> B that fits the crankshaft 11 is formed while the governor sleeve 16 abuts.
  • the fork 172 extends along the longitudinal direction of the lever body 171, and a locking groove 172 ⁇ / b> A is formed at the tip of the fork 172.
  • a rack pin 91A of a control rack 91 that adjusts the fuel injection amount of the fuel injection pump 9 is locked in the locking groove 172A.
  • the first governor lever 17 is connected to the control rack 91 by locking the locking groove 172A to the rack pin 91A.
  • the second governor lever 18 includes a lever body 181, a side plate 182, a side plate 183, and the like.
  • the lever body 181 is pivotally supported by the governor lever shaft 24.
  • the lever body 181 is formed with shaft holes 181A and 181A into which the governor lever shaft 24 is inserted. Further, on the base end side of the lever main body 181, a locking hole 181 ⁇ / b> B for locking one end of a main spring (not shown) is formed. The other end of the main spring is locked to a regulator handle (not shown), and the operator adjusts the fuel injection amount of the fuel injection pump 9 by rotating the second governor lever 18 with the regulator handle. can do.
  • the side plate 182 and the side plate 183 are extended downward from both sides of the tip of the lever body 181.
  • the side plate 182 and the side plate 183 are disposed substantially in parallel with a predetermined interval, and the first governor lever 17 is disposed between the side plate 182 and the side plate 183.
  • the movable piece 21 includes a movable piece main body 211, a pin 212 that is a protrusion, a locking shaft 213, and the like.
  • the movable piece main body 211 is formed in a substantially triangular shape in plan view, and in the present embodiment, is formed in a substantially obtuse triangular shape.
  • the movable piece main body 211 is formed in a substantially obtuse triangular shape composed of one obtuse angle portion formed in an approximately obtuse angle shape and two acute angle portions formed in an approximately acute angle shape.
  • the movable piece body 211 is pivotally supported on the rotation shaft 26 so as to be rotatable.
  • a shaft hole 211 ⁇ / b> A into which the rotation shaft 26 is inserted is formed in the obtuse angle portion of the movable piece body 211.
  • the rotating shaft 26 is pivotally supported in shaft holes 172B and 172B (see FIG. 5) formed in the fork 172.
  • a pin 212 is erected at one of the two acute angle portions, and a locking shaft 213 having a locking hole 213A is provided at the other acute angle portion. It is done. Of these, the arm 203 end of the torsion spring 20 is locked in the locking hole 213A.
  • a groove 172 ⁇ / b> C into which the locking shaft 213 enters when the movable piece 21 rotates is formed at the edge of the fork 172 in the longitudinal direction.
  • a substantially hemispherical convex portion 214 is provided on the lower surface of the movable piece 21, in this embodiment, the lower surface of the pin 212.
  • the fork 172 of the first governor lever 17 is formed with a fitting hole row 172D.
  • the fitting hole row 172D is composed of fitting holes 172Da, 172Db, and 172Dc that are a plurality of (three in this embodiment) fitting parts that are fitted to the convex part 214.
  • the fitting holes 172Da, 172Db, and 172Dc are arranged on the rotation locus C of the convex portion 214 in the movable piece 21.
  • the fitting holes 172Da, 172Db, and 172Dc are arranged at an equally spaced angle ⁇ (for example, 20 degrees) about the rotation shaft 26.
  • the pin 212 by operating the pin 212 to rotate the movable piece 21, when the convex portion 214 and the fitting hole 172Da, 172Db, or 172Dc are fitted, the movable piece 21 is fitted into the fitting hole 172Da ⁇ It is positioned at any one of 172Db and 172Dc. That is, when the convex portion 214 and the first fitting hole 172Da are fitted, the movable piece 21 is positioned at the position of the first fitting hole 172Da, and the convex portion 214 and the second fitting hole 172Db are fitted.
  • the movable piece 21 is positioned at the position of the second fitting hole 172Db, and when the convex portion 214 and the third fitting hole 172Dc are fitted, the movable piece 21 is positioned at the third fitting hole 172Dc. Is positioned.
  • the fitting holes 172Da, 172Db, and 172Dc are not limited to those arranged at equal angular intervals, and may be arranged at irregular angular intervals. Further, the number of the fitting holes 172Da, 172Db, and 172Dc is not limited to three, and may be two or four or more. Further, the fitting portion is not limited to the fitting holes 172Da, 172Db, and 172Dc penetrating the fork 172, but may be a recess formed on the surface of the fork 172.
  • the Anglich pin 19 includes a shaft portion 191, a head portion 192, a locking groove 193, and the like.
  • the angle pin 19 is inserted into a pin hole 182A formed in the side plate 182 so that the head portion 192 protrudes toward the fork 172, and the shaft portion 191 is slidably inserted between the head portion 192 and the side plate 182.
  • a retaining ring 27 such as an E-ring is externally fitted on the tip end side of the shaft portion 191 with a gap corresponding to the angle of the Anglich stroke S therebetween.
  • the locking groove 193 is formed from the tip surface of the shaft portion 191 to the head portion 192 so as to pass through the shaft center portion of the angle pin 19.
  • the end of the arm 202 of the torsion spring 20 is locked to the end of the locking groove 193 on the head 192 side.
  • “An SharePoint” means a device that corrects the fuel injection amount of the governor device 1 of the engine 2.
  • the torsion spring 20 is a double torsion spring, and includes a pair of coils 201 and 201, a pair of arms 202 and 203, and the like. Among these, from the coils 201 and 201, the arm 202 extends to one side and the arm 203 extends to the other side. The end of the arm 202 is locked in the locking groove 193 of the angle pin 19, and the end of the arm 203 is locked in the locking hole 213 ⁇ / b> A of the movable piece 21. Further, an abutting portion 202 ⁇ / b> A that can abut against the inner surface of the side plate 182 is formed in the middle of the arm 202.
  • the contact portion 202A is formed by being bent into a substantially V shape in plan view so that a midway portion of the arm 202 protrudes to the inner surface side of the side plate 182.
  • the torsion spring 20 urges the first governor lever 17 in the increasing direction by the contact portion 202A contacting the inner surface of the side plate 182, and by the lever principle using the contact portion 202A as a fulcrum.
  • the angle pin 19 is urged in the protruding direction.
  • starting increasing urging force the urging force that urges the first governor lever 17 in the increasing direction
  • urging force that urges the Anglich pin 19 in the protruding direction Is called “Angrich Increasing Force”.
  • the limiting bolt 22 is screwed into the gear case 10 from the front surface of the gear case 10 and fixed with a nut 28.
  • the front end 221 of the limiting bolt 22 abuts on the outer surface of the side plate 183 of the second governor lever 18 (lever body 181).
  • the fork 172 abuts against the head 192 of the Anglich pin 19 to restrict the rotation of the first governor lever 17 in the decreasing direction, and the first governor lever 17 increases in the direction of the Anglich talk S. Is held at the position rotated. This is because the thrust load of the governor weights 15 and 15 is smaller than the angle increase urging force of the torsion spring 20. As a result, the control rack 91 moves to the increased amount side by ⁇ R as compared to the case where the Anglich pin 19 does not protrude by the Anglich stroke S (C-D section shown in FIG. 15), and the fuel injection amount is increased. To increase.
  • the twist angle is ⁇ 1.
  • the twist angle is ⁇ 2.
  • the twist angle is ⁇ 3.
  • twist angles ⁇ 1, ⁇ 2, and ⁇ 3 increase in the order of ⁇ 1, ⁇ 2, and ⁇ 3 ( ⁇ 1 ⁇ 2 ⁇ 3).
  • the set load of the torsion spring 20 is maximum when the torsion angle ⁇ 1, is minimum when the torsion angle ⁇ 3, and intermediate between both when the torsion angle ⁇ 2.
  • the An Eisen incremental rotation speed N2 at the twist angle ⁇ 2 moves to the lower rotation side than the Anglich incremental rotation speed N1 shown in FIG.
  • the Anglich increase rotation speed N3 at the twist angle ⁇ 3 is lower than the Anglich increase rotation speed N1 shown in FIG. 15 and the Angrich increase rotation speed N2 shown in FIG. Move to the rotation side.
  • the twist angle ⁇ 2 the set load of the torsion spring 20 is smaller than when the twist angle is ⁇ 1, and when the twist angle ⁇ 3, the set load of the torsion spring 20 is smaller than when the twist angle is ⁇ 1 ⁇ ⁇ 2.
  • the fork 172 pushes the Anglich pin 19 in the anti-projection direction even when the engine speed is low and the thrust load of the governor weights 15 and 15 is small.
  • the first governor lever 17 that is connected to the control rack 91 that adjusts the fuel injection amount of the fuel injection pump 9 and rotates in conjunction with the governor weights 15 and 15, and the first governor lever 17
  • the second governor lever 18 has a predetermined rotation stroke and is rotatable with respect to the first governor lever 17 and a pair of arms 202 and 203, and is disposed between the first governor lever 17 and the second governor lever 18.
  • the torsion spring 20 and the side plate 182 of the second governor lever 18 project so as to be movable by the angle of the Anglich stroke S, and can be brought into contact with the fork 172 of the first governor lever 17.
  • the Anglich pin 19 is engaged with the end portion of the arm 202 of the engine 2.
  • the movable piece 21 is a movable member that is pivotally supported by the fork 172 of the first governor lever 17 and is engaged with the end of the other arm 203 of the torsion spring 20, and the movable piece 21 is rotated a plurality of times.
  • Positioning means (convex portion 214, fitting holes 172Da, 172Db, and 172Dc) for positioning at the positions.
  • the set load of the torsion spring 20 is adjusted according to the type of work machine on which the engine 2 is mounted, the environment in which the engine 2 is used (cold region, etc.), etc., and the torque of the engine 2 in the low speed rotation region is adjusted. It is possible to easily adjust the engine output.
  • the positioning means is a plurality of (three in this embodiment) fitting portions that are provided on the convex portion 214 provided on the movable piece 21 and on the fork 172 of the first governor lever 17 and are fitted to the convex portion 214.
  • the convex portion 214 of the movable piece 21 and the fitting holes 172Da, 172Db, and 172Dc of the first governor lever 17 are fitted, and the movable piece 21 is fitted, simply by rotating the movable piece 21. Since the holes 172Da, 172Db, and 172Dc are positioned at the respective positions, the set load of the torsion spring 20 can be easily adjusted.
  • the movable piece 21 is provided with a pin 212 that is a protrusion, and the pin 212 serves as a handle when the movable piece 21 is rotated, and comes into contact with the side plate 183 of the second governor lever 18. The rotation of the first governor lever 17 is restricted.
  • the set load of the torsion spring 20 can be easily adjusted by rotating the movable piece 21 using the pin 212. Further, by providing the movable piece 21 with the pin 212 for restricting the rotation of the first governor lever 17, it is not necessary to provide such a projection on the first governor lever 17, so the structure of the first governor lever 17 is simplified. Can be.
  • the present invention can be used for an engine governor device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)
PCT/JP2011/080429 2011-04-28 2011-12-28 エンジンのガバナ装置 WO2012147237A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201180070379.8A CN103502606B (zh) 2011-04-28 2011-12-28 发动机的调速器装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-102499 2011-04-28
JP2011102499A JP5753728B2 (ja) 2011-04-28 2011-04-28 エンジンのガバナ装置

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WO2012147237A1 true WO2012147237A1 (ja) 2012-11-01

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CN (1) CN103502606B (zh)
WO (1) WO2012147237A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20130053A1 (it) * 2013-07-24 2015-01-25 Lombardini Srl Dispositivo di comando della velocita' di un motore a combustione interna

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101932290B1 (ko) * 2013-05-23 2019-03-20 현대중공업 주식회사 양방향 토션스프링이 구비된 링크시스템
JP6424179B2 (ja) * 2014-02-17 2018-11-14 ヤンマー株式会社 エンジンのガバナ装置およびエンジン

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62137346U (zh) * 1986-02-24 1987-08-29
JP2005061357A (ja) * 2003-08-19 2005-03-10 Yanmar Co Ltd ガバナ装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1047085A (ja) * 1996-07-30 1998-02-17 Mitsubishi Heavy Ind Ltd エンジンの機械式ガバナ装置
CN100582458C (zh) * 2003-08-19 2010-01-20 洋马株式会社 调速器
JP4296075B2 (ja) * 2003-10-27 2009-07-15 ヤンマー株式会社 ガバナ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62137346U (zh) * 1986-02-24 1987-08-29
JP2005061357A (ja) * 2003-08-19 2005-03-10 Yanmar Co Ltd ガバナ装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20130053A1 (it) * 2013-07-24 2015-01-25 Lombardini Srl Dispositivo di comando della velocita' di un motore a combustione interna
EP2829708A1 (en) * 2013-07-24 2015-01-28 Lombardini S.r.l. Device for controlling the speed of an internal combustion engine
US9624841B2 (en) 2013-07-24 2017-04-18 Lombardini S.R.L. Device for controlling the speed of an internal combustion engine

Also Published As

Publication number Publication date
CN103502606A (zh) 2014-01-08
JP2012233436A (ja) 2012-11-29
JP5753728B2 (ja) 2015-07-22
CN103502606B (zh) 2016-03-23

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