JPH0533796Y2 - - Google Patents
Info
- Publication number
- JPH0533796Y2 JPH0533796Y2 JP1985189092U JP18909285U JPH0533796Y2 JP H0533796 Y2 JPH0533796 Y2 JP H0533796Y2 JP 1985189092 U JP1985189092 U JP 1985189092U JP 18909285 U JP18909285 U JP 18909285U JP H0533796 Y2 JPH0533796 Y2 JP H0533796Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- oil chamber
- outlet
- flywheel
- crankshaft
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000003921 oil Substances 0.000 description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000010687 lubricating oil Substances 0.000 description 6
- 238000005192 partition Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Devices For Dispensing Beverages (AREA)
- Mechanical Operated Clutches (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は車両用内燃機関などに取り付けられる
慣性質量可変のフライホールに関するものであ
る。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a flyhole with variable inertia mass that is attached to a vehicle internal combustion engine or the like.
［従来の技術］
機関の低速回転では１サイクルにおける回転変
動を抑えるために、慣性質量の大きなフライホイ
ールをクランク軸に取り付ける必要がある。しか
し、高速回転では１サイクルでの回転変動が少な
いので、慣性質量の大きなフライホイールを使用
することは、慣性質量によりクランク軸の捩り振
動や曲げ振動が生じ、強度上の問題や振動騒音
（こもり音）の発生原因になる。[Prior Art] When an engine rotates at a low speed, it is necessary to attach a flywheel with a large inertial mass to the crankshaft in order to suppress rotational fluctuations in one cycle. However, since there is little variation in rotation per cycle at high speeds, using a flywheel with a large inertial mass causes torsional and bending vibrations of the crankshaft due to the inertial mass, which can lead to strength problems and vibration noise (muffled noise). (sound).
そこで、上述の問題を解決するものとして、例
えば特開昭56−164247号公報に開示されるフライ
ホイールでは、クランク軸に回転結合した円筒体
の周面に、フライホイールがばねの力により係合
され、クランク軸の回転数が所定値を越えると、
遠心クラツチがばねの力に抗して径外方へ移動
し、円筒体に対するフライホイールの摩擦係合が
解除される。 Therefore, in order to solve the above-mentioned problem, for example, in the flywheel disclosed in Japanese Patent Application Laid-Open No. 56-164247, the flywheel is engaged with the circumferential surface of a cylindrical body rotatably connected to the crankshaft by the force of a spring. When the rotation speed of the crankshaft exceeds a predetermined value,
The centrifugal clutch moves radially outward against the force of the spring, and the frictional engagement of the flywheel with the cylinder is released.
上述のフライホイールでは、遠心クラツチを径
内方へ付勢するばねのセツト荷重により、フライ
ホイールとクランク軸との回転結合が解除される
回転数が設定されるので、クランク軸の回転数に
応じてフライホイールの慣性質量を無段階的に制
御することはできない。 In the flywheel described above, the rotation speed at which the rotational connection between the flywheel and the crankshaft is released is set by the set load of the spring that biases the centrifugal clutch radially inward. It is not possible to control the inertial mass of the flywheel in a stepless manner.
［考案が解決しようとする問題点］
そこで、本考案の目的はクランク軸の回転数に
応じてフライホイールの慣性質量を連続的に加減
できるフライホイールを提供することにある。[Problems to be Solved by the Invention] Therefore, an object of the invention is to provide a flywheel that can continuously adjust the inertial mass of the flywheel in accordance with the rotational speed of the crankshaft.
［問題点を解決するための手段］
上記目的を達成するために、本考案の構成は回
転軸に結合した円板の周縁部に周方向等間隔に多
数の油室を備え、油室の内周壁部に油圧ポンプか
らの圧油を油室へ供給する入口を、油室の外周壁
部に油室の油を油槽へ戻す出口をそれぞれ備え、
出口に回転軸の回転数に比例しばねの力に抗して
開度が増加する湯量調整弁を備えたものである。[Means for Solving the Problems] In order to achieve the above object, the configuration of the present invention includes a large number of oil chambers arranged at equal intervals in the circumferential direction on the peripheral edge of a disk connected to the rotating shaft, and The peripheral wall has an inlet for supplying pressure oil from the hydraulic pump to the oil chamber, and the outer peripheral wall of the oil chamber has an outlet for returning oil from the oil chamber to the oil tank.
The outlet is equipped with a hot water flow regulating valve whose opening degree increases in proportion to the rotational speed of the rotating shaft and against the force of the spring.
［作用］
回転軸としてのクランク軸に取り付けられたフ
ライホイールは、環状板とハウジングとにより区
画される油室を周方向等間隔に配置される。油圧
ポンプから油（潤滑油）がクランク軸の内部通路
を経てフライホイールの油室へ供給され、余剰の
油は出口からクランク軸の内部通路を経て、機関
のオイルパンへ戻される。[Operation] A flywheel attached to a crankshaft serving as a rotating shaft has an oil chamber partitioned by an annular plate and a housing arranged at equal intervals in the circumferential direction. Oil (lubricating oil) is supplied from the hydraulic pump through the internal passage of the crankshaft to the oil chamber of the flywheel, and excess oil is returned from the outlet through the internal passage of the crankshaft to the oil pan of the engine.
クランク軸の回転数が高くなると、湯量調整弁
の弁体は遠心力を受け、ばねの力に抗して開き、
油室の油は出口の湯量調整弁、クランク軸の内部
通路をオイルパンへ戻される。 When the rotation speed of the crankshaft increases, the valve body of the hot water flow adjustment valve receives centrifugal force and opens against the force of the spring.
The oil in the oil chamber is returned to the oil pan through the outlet water flow control valve and the internal passage of the crankshaft.
湯量調整弁の開度はクランク軸の回転数に比例
して変化するので、フライホイールの油室に滞留
する油の量、すなわち慣性質量は回転数に関連し
て連続的に加減される。 Since the opening degree of the hot water flow control valve changes in proportion to the rotational speed of the crankshaft, the amount of oil remaining in the oil chamber of the flywheel, that is, the inertial mass, is continuously adjusted in relation to the rotational speed.
［考案の実施例］
第１図に示すように、クランク軸４の端部フラ
ンジに円板５がボルトなどの適当な手段により結
合され、円板５の外周側に環状板７がボルト３に
より結合される。環状板７の外周縁部は縁曲げさ
れて短い円筒部７ａを一体に形成され、円筒部７
ａはリング歯車９を溶接などにより結合される。[Embodiment of the invention] As shown in FIG. 1, a disc 5 is connected to the end flange of a crankshaft 4 by appropriate means such as bolts, and an annular plate 7 is connected to the outer peripheral side of the disc 5 by bolts 3. be combined. The outer peripheral edge of the annular plate 7 is bent to integrally form a short cylindrical portion 7a.
a is connected to the ring gear 9 by welding or the like.
本考案によれば、環状板７に周方向等間隔に所
定の慣性質量をもつ多数の錘２と多数の油室１２
を形成するハウジング１０とが結合される。しか
し、錘２を取り付ける代りに、環状板７の全周方
向に連続する環状の油室１２を形成してもよい。 According to the present invention, a large number of weights 2 having a predetermined inertial mass and a large number of oil chambers 12 are arranged at equal intervals in the circumferential direction on the annular plate 7.
The housing 10 forming the housing 10 is coupled to the housing 10 . However, instead of attaching the weight 2, an annular oil chamber 12 may be formed continuous in the entire circumferential direction of the annular plate 7.
ハウジング１０に支持した管継手１３に、供給
管１４の一端が接続される。供給管１４の他端は
クランク軸４に設けた通路４ａに接続される。通
路４ａは図示してない油ポンプから機関の潤滑油
を供給される。 One end of a supply pipe 14 is connected to a pipe joint 13 supported by the housing 10 . The other end of the supply pipe 14 is connected to a passage 4a provided in the crankshaft 4. The passage 4a is supplied with lubricating oil for the engine from an oil pump (not shown).
環状板７に油室１２に連なる出口６が設けら
れ、出口６は図示してない配管を介して、クラン
ク軸４に設けた戻り通路（図示せず）に接続され
る。さらに、環状板７に油室１２の出口２１が設
けられ、出口２１は湯量調整弁８と配管２８を経
てクランク軸４の戻り通路に接続される。 The annular plate 7 is provided with an outlet 6 that is connected to the oil chamber 12, and the outlet 6 is connected to a return passage (not shown) provided in the crankshaft 4 via a pipe (not shown). Further, the annular plate 7 is provided with an outlet 21 of the oil chamber 12, and the outlet 21 is connected to the return passage of the crankshaft 4 via the hot water amount regulating valve 8 and piping 28.
しかし、配管２８、出口６は配管によりクラン
ク軸４の戻り通路へ接続しないでも、適当な環状
の油受け部材を介してオイルパンへ戻すように構
成することができる。 However, the piping 28 and the outlet 6 may be configured to return to the oil pan via a suitable annular oil receiving member without being connected to the return passage of the crankshaft 4 by piping.
第２図に示すように、湯量調整弁８は環状板７
に結合したハウジング２２を備えており、ハウジ
ング２２の内部に設けた隔壁により、油室１２の
出口２１に連なる室と、弁体２４を収容しかつ出
口２５を有する室とを区画される。隔壁２９に設
けた弁座２３に、ばね２６の力により弁体２４が
押し付けられる。弁体２４はハウジング２２に固
定したロツド２７に摺動可能に支持される。 As shown in FIG.
A partition wall provided inside the housing 22 separates a chamber connected to the outlet 21 of the oil chamber 12 and a chamber that accommodates the valve body 24 and has an outlet 25. The valve body 24 is pressed against the valve seat 23 provided on the partition wall 29 by the force of the spring 26 . The valve body 24 is slidably supported by a rod 27 fixed to the housing 22.
次に、本考案によるフライホイールの作動につ
いて説明する。機関の低速回転では、油ポンプの
圧油がクランク軸４の通路４ａへ供給され、供給
管１４、継手１３を経て油室１２へ充填され、余
分の油は出口６から戻される。したがつて、錘２
と油室１２の油が慣性質量として有効に働き、低
回転数における機関の回転変動を抑えるように作
用する。油室１２の出口６は供給管１４から供給
される油流量よりも少なくなるように絞られてい
る。 Next, the operation of the flywheel according to the present invention will be explained. When the engine rotates at low speed, pressure oil from the oil pump is supplied to the passage 4a of the crankshaft 4, filling the oil chamber 12 through the supply pipe 14 and the joint 13, and excess oil is returned from the outlet 6. Therefore, weight 2
The oil in the oil chamber 12 effectively acts as an inertial mass and acts to suppress rotational fluctuations of the engine at low rotational speeds. The outlet 6 of the oil chamber 12 is constricted so that the flow rate of oil supplied from the supply pipe 14 is smaller.
機関の高速回転では、湯量調整弁８の弁体２４
の受ける遠心力がばね２６の力に打ち勝つて、弁
体２４がロツド２７に沿つてフライホイール３０
の径外方（第２図において上方）へ移動し、弁座
２３から離れる。したがつて、油室１２の油が出
口２１からハウジング２２へ入り、出口２５から
配管２８を経てオイルパンへ直接戻されるかまた
は機関のオイルギヤラリへ供給される。 When the engine rotates at high speed, the valve body 24 of the hot water flow adjustment valve 8
The centrifugal force received by the valve body overcomes the force of the spring 26, and the valve body 24 moves along the rod 27 to
The valve moves radially outward (upward in FIG. 2) and leaves the valve seat 23. Therefore, the oil in the oil chamber 12 enters the housing 22 through the outlet 21 and is returned through the outlet 25 via the pipe 28 directly to the oil pan or is supplied to the oil gear of the engine.
湯量調整弁８の開度に応じて、油ポンプから油
室１２へ供給される油流量よりも多い油流量が、
出口２１から戻されるので、油室１２の油量が少
くなり、フライホイールの慣性質量が減じられ
る。 Depending on the opening degree of the hot water flow adjustment valve 8, the oil flow rate is greater than the oil flow rate supplied from the oil pump to the oil chamber 12.
Since the oil is returned from the outlet 21, the amount of oil in the oil chamber 12 is reduced, and the inertial mass of the flywheel is reduced.
高速回転で油室１２に滞留する油量は、湯量調
整弁８の開度により自動的に加減されるが、必要
により油ポンプから供給管１４を経て油室１２へ
供給する油量をある程度制限するように制御して
もよい。こうして、機関の高速回転ではフライホ
イール３０の慣性質量が減じられるので、高速回
転における加速性やエンジンブレーキの効きが向
上される。 The amount of oil that stays in the oil chamber 12 during high-speed rotation is automatically adjusted by the opening degree of the hot water amount adjustment valve 8, but if necessary, the amount of oil supplied from the oil pump to the oil chamber 12 via the supply pipe 14 can be limited to some extent. It may be controlled to do so. In this way, the inertial mass of the flywheel 30 is reduced when the engine rotates at high speeds, thereby improving acceleration performance and engine braking effectiveness at high speeds.
油室の液体は潤滑油に限定されるものではない
が、潤滑油を導くようにすれば、潤滑油に混入す
る異物などが遠心力により油室の径外方へ分離さ
れるので、分離された異物を例えばハウジングに
設けた多孔質部材などにより捕集すれば、潤滑油
を効果的に浄化できる。 The liquid in the oil chamber is not limited to lubricating oil, but if the lubricating oil is guided, foreign substances mixed in the lubricating oil will be separated radially outward of the oil chamber by centrifugal force, so they will not be separated. The lubricating oil can be effectively purified by collecting foreign matter with a porous member provided in the housing, for example.
［考案の効果］
本考案によれは上述のように、回転軸に結合し
た円板の周縁板に周方向等間隔に多数の油室を備
え、油室の内周壁部に油圧ポンプからの油圧を油
室へ供給する入口を、油室の外周壁部に油室の油
を油槽へ戻す出口をそれぞれ備え、出口に回転軸
の回転数に比例しばねの力に抗して開度が増加す
る湯量調整弁を備えたものであるから、油圧ポン
プからフライホイールの油室へ流入する油流量
と、油室から湯量調整弁を経て流出する油流量と
から、油室の油量を０から満杯まで無段階に加減
できるので、機関の低速回転ではフライホイール
の慣性質量を大きくして、機関の回転変動を抑え
る一方、高速回転では慣性質量を小さくして、ク
ランク軸の強度負担を軽減し、運転騒音を低減で
きる。[Effects of the invention] As described above, the invention has a number of oil chambers arranged at equal intervals in the circumferential direction on the peripheral plate of the disc connected to the rotating shaft, and the inner peripheral wall of the oil chamber receives hydraulic pressure from the hydraulic pump. An inlet for supplying oil to the oil chamber and an outlet for returning oil from the oil chamber to the oil tank are provided on the outer peripheral wall of the oil chamber. Since it is equipped with a hot water volume adjustment valve, the oil volume in the oil chamber can be adjusted from 0 to 0 based on the oil flow rate flowing from the hydraulic pump into the oil chamber of the flywheel and the oil flow rate flowing out from the oil chamber via the hot water volume adjustment valve. Since it can be adjusted steplessly until it is full, the inertial mass of the flywheel is increased when the engine rotates at low speeds to suppress fluctuations in engine rotation, while the inertial mass is decreased at high speeds to reduce the strength burden on the crankshaft. , can reduce operating noise.
空気圧により油室の油量を加減するのでなく、
油室へ流入する油流量と油室から流出する油流量
とに関連して油室の油量を加減するものであるか
ら、高精度の制御が得られる。 Rather than adjusting the amount of oil in the oil chamber using air pressure,
Since the amount of oil in the oil chamber is adjusted in relation to the amount of oil flowing into the oil chamber and the amount of oil flowing out from the oil chamber, highly accurate control can be achieved.
フライホイールの構成が簡単であり、必要によ
り板材からプレス成形でき、軽量化が可能であ
る。 The flywheel has a simple structure and can be press-formed from a plate material if necessary, making it lightweight.
第１図は本考案に係るフライホイールの側面断
面図、第２図は同要部を拡大して示す側面断面図
である。
４……回転軸（クランク軸）、５……円板、８
……油量調整弁、１２……油室、２１……出口、
２４……弁体、２６……ばね、３０……フライホ
イール。
FIG. 1 is a side sectional view of a flywheel according to the present invention, and FIG. 2 is an enlarged side sectional view showing the main parts thereof. 4... Rotating shaft (crankshaft), 5... Disk, 8
...Oil volume adjustment valve, 12...Oil chamber, 21...Outlet,
24...valve body, 26...spring, 30...flywheel.
Claims (1)
に多数の油室を備え、油室の内周壁部に油圧ポン
プからの油圧を油室へ供給する入口を、油室の外
周壁部に油室の油を油槽へ戻す出口をそれぞれ備
え、出口に回転軸の回転数に比例しばねの力に抗
して開度が増加する油量調整弁を備えたことを特
徴とするフライホイール。 A large number of oil chambers are provided at equal intervals in the circumferential direction on the peripheral edge of a disc connected to the rotating shaft, and an inlet for supplying hydraulic pressure from a hydraulic pump to the oil chamber is provided on the inner peripheral wall of the oil chamber, and an inlet is provided on the outer peripheral wall of the oil chamber. A flywheel characterized by having an outlet for returning oil from an oil chamber to an oil tank, and an oil amount adjusting valve at the outlet whose opening degree increases in proportion to the rotational speed of a rotating shaft and against the force of a spring. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985189092U JPH0533796Y2 (en) | 1985-12-10 | 1985-12-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985189092U JPH0533796Y2 (en) | 1985-12-10 | 1985-12-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6297340U JPS6297340U (en) | 1987-06-20 |
| JPH0533796Y2 true JPH0533796Y2 (en) | 1993-08-27 |
Family
ID=31141070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985189092U Expired - Lifetime JPH0533796Y2 (en) | 1985-12-10 | 1985-12-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0533796Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6266944B2 (en) * | 2013-10-17 | 2018-01-24 | 三菱重工業株式会社 | Crankshaft vibration control apparatus and method for controlling vibration of internal combustion engine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58651A (en) * | 1981-06-26 | 1983-01-05 | Nishishiba Denki Kk | Flywheel device |
| JPS6016035B2 (en) * | 1977-03-04 | 1985-04-23 | 日本電気株式会社 | Width increase circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016035U (en) * | 1983-07-12 | 1985-02-02 | トヨタ自動車株式会社 | flywheel |
-
1985
- 1985-12-10 JP JP1985189092U patent/JPH0533796Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6016035B2 (en) * | 1977-03-04 | 1985-04-23 | 日本電気株式会社 | Width increase circuit |
| JPS58651A (en) * | 1981-06-26 | 1983-01-05 | Nishishiba Denki Kk | Flywheel device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6297340U (en) | 1987-06-20 |
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