JP7424245B2 - バルブタイミング調整装置 - Google Patents
バルブタイミング調整装置 Download PDFInfo
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- JP7424245B2 JP7424245B2 JP2020135345A JP2020135345A JP7424245B2 JP 7424245 B2 JP7424245 B2 JP 7424245B2 JP 2020135345 A JP2020135345 A JP 2020135345A JP 2020135345 A JP2020135345 A JP 2020135345A JP 7424245 B2 JP7424245 B2 JP 7424245B2
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- 238000005096 rolling process Methods 0.000 claims description 97
- 230000007246 mechanism Effects 0.000 claims description 30
- 230000009467 reduction Effects 0.000 claims description 28
- 239000010687 lubricating oil Substances 0.000 claims description 25
- 239000003921 oil Substances 0.000 claims description 18
- 230000009471 action Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000000717 retained effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/348—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear by means acting on timing belts or chains
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
- F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6685—Details of collecting or draining, e.g. returning the liquid to a sump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2250/00—Camshaft drives characterised by their transmission means
- F01L2250/02—Camshaft drives characterised by their transmission means the camshaft being driven by chains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/02—Lubrication
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
- F01L2820/032—Electric motors
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/61—Toothed gear systems, e.g. support of pinion shafts
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/65—Gear shifting, change speed gear, gear box
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/91—Valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Device For Special Equipments (AREA)
- Rolling Contact Bearings (AREA)
Description
減速機構は、カム軸の軸方向においてモータとカム軸との間に設けられる。減速機構は、モータにより駆動される入力部材(18)と、カム軸に一体回転可能に連結された出力部材(22)と、出力部材の内歯(221)に噛み合う小径外歯(262)が形成された遊星ギヤ(26)と、入力部材においてカム軸と同心の同心部(181)を回転可能に支持する第1転がり軸受(17)、及び、入力部材においてカム軸から偏心する偏心部(182)の外側に遊星ギヤを回転可能に支持する第2転がり軸受(25)、を含む複数の転がり軸受と、転がり軸受に潤滑油(O)を供給する給油通路(42)と、転がり軸受を軸方向の定位置に係止する少なくとも1つのスラスト受け(551~554)とを備える。
転がり軸受は、内輪(51)および外輪(52)の相対面に転動体(53)を案内する軌道溝(54)を有し、軌道溝は、転動体の中心より軸方向の一方側に相対的に深い深溝(541)を含むとともに、転動体の中心より軸方向の他方側に相対的に浅い浅溝(542)を含む。外輪の深溝は、転動体の中心よりカム軸側に設けられており、内輪の深溝は、転動体の中心よりモータ側に設けられている。
外輪を係止するスラスト受け(551)は、外輪の浅溝から流れ出た潤滑油を転がり軸受の外部に排出する第1排油部(43)を備えている。内輪を係止するスラスト受け(553)は、内輪の浅溝から流れ出た潤滑油を転がり軸受の外部に排出する第2排油部(44)を備えている。
このバルブタイミング調整装置は、エンジン停止中に軌道溝に滞留する潤滑油量を低減する。
本発明の第1実施形態を図1~図5に基づいて説明する。図1に示すように、第1実施形態のバルブタイミング調整装置10は、車両用エンジン100のクランク軸102により第1チェーン103を介して第1カム軸104を回転し、第1カム軸104により第2チェーン105を介して第2カム軸106を回転する。第1カム軸104上には吸気カム108が設けられ、第1カム軸104の回転に伴って吸気カム108が吸気バルブ107の開閉タイミングを調整する。第2カム軸106上には排気カム110が設けられ、第2カム軸106の回転に伴って排気カム110が排気バルブ109の開閉タイミングを調整する。
上記実施形態では、減速機構12に2つの転がり軸受17,25が使用されているが、転がり軸受の個数は特に限定されない。図6に示す第2実施形態のバルブタイミング調整装置では、第1転がり軸受17、第2転がり軸受25に加えて、第3転がり軸受61が用いられている。第3転がり軸受61は、減速機構12の低速側において、スプロケット部材13と出力部材22との間に介装されている。高速側の2つの転がり軸受17,25と異なり、第3転がり軸受61には、軌道溝54の深さが軸方向の両側で等しいラジアルボールベアリングを使用することができる。
その他、本発明は、上記実施形態に限定されるものではなく、次に例示するように、発明の趣旨を逸脱しない範囲で、各部の構成を適宜変更して実施することも可能である。
12・・・減速機構、17・・・第1転がり軸受、25・・・第2転がり軸受、
42・・・給油通路、43・・・第1排油部、51・・・内輪、52・・・外輪、
53・・・転動体、54・・・軌道溝、541・・・深溝、542・・・浅溝、
100・・・車両用エンジン、104,106・・・カム軸、107・・・吸気バルブ、
109・・・排気バルブ、551・・・第1スラスト受け、O・・・潤滑油。
Claims (1)
- モータ(11)により減速機構(12)を介してカム軸(104,106)を駆動し、該カム軸の回転によりエンジン(100)におけるバルブ(107,109)の開閉タイミングを調整するバルブタイミング調整装置(10)であって、
前記減速機構は、
前記カム軸の軸方向において前記モータと前記カム軸との間に設けられ、
前記モータにより駆動される入力部材(18)と、
前記カム軸に一体回転可能に連結された出力部材(22)と、
前記出力部材の内歯(221)に噛み合う小径外歯(262)が形成された遊星ギヤ(26)と、
前記入力部材において前記カム軸と同心の同心部(181)を回転可能に支持する第1転がり軸受(17)、及び、前記入力部材において前記カム軸から偏心する偏心部(182)の外側に前記遊星ギヤを回転可能に支持する第2転がり軸受(25)、を含む複数の転がり軸受と、
該転がり軸受に潤滑油(O)を供給する給油通路(42)と、
前記転がり軸受を軸方向の定位置に係止する複数のスラスト受け(551~554)と、
を備え、
前記転がり軸受は、内輪(51)および外輪(52)の相対面に転動体(53)を案内する軌道溝(54)を有し、
前記軌道溝は、前記転動体の中心より軸方向の一方側に相対的に深い深溝(541)を含むとともに、前記転動体の中心より軸方向の他方側に相対的に浅い浅溝(542)を含み、
前記外輪の前記深溝は、前記転動体の中心より前記カム軸側に設けられており、
前記内輪の前記深溝は、前記転動体の中心より前記モータ側に設けられており、
前記外輪を係止する前記スラスト受け(551)は、前記外輪の前記浅溝から流れ出た潤滑油を前記転がり軸受の外部に排出する第1排油部(43)を備えており、
前記内輪を係止する前記スラスト受け(553)は、前記内輪の前記浅溝から流れ出た潤滑油を前記転がり軸受の外部に排出する第2排油部(44)を備えており、
エンジン停止中に前記軌道溝に滞留する潤滑油量を低減するバルブタイミング調整装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020135345A JP7424245B2 (ja) | 2020-08-07 | 2020-08-07 | バルブタイミング調整装置 |
DE102021114133.8A DE102021114133A1 (de) | 2020-08-07 | 2021-06-01 | Ventil-timing-einstellvorrichtung |
US17/393,722 US20220042426A1 (en) | 2020-08-07 | 2021-08-04 | Valve timing adjustment device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020135345A JP7424245B2 (ja) | 2020-08-07 | 2020-08-07 | バルブタイミング調整装置 |
Publications (2)
Publication Number | Publication Date |
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JP2022030986A JP2022030986A (ja) | 2022-02-18 |
JP7424245B2 true JP7424245B2 (ja) | 2024-01-30 |
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JP2020135345A Active JP7424245B2 (ja) | 2020-08-07 | 2020-08-07 | バルブタイミング調整装置 |
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US (1) | US20220042426A1 (ja) |
JP (1) | JP7424245B2 (ja) |
DE (1) | DE102021114133A1 (ja) |
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JP2022160792A (ja) * | 2021-04-07 | 2022-10-20 | 株式会社アイシン | 弁開閉時期制御装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016076152A1 (ja) | 2014-11-10 | 2016-05-19 | Ntn株式会社 | 深溝玉軸受の組立方法および深溝玉軸受 |
US20160251986A1 (en) | 2013-10-08 | 2016-09-01 | Schaeffler Technologies AG & Co. KG | Camshaft adjusting device |
WO2016208105A1 (ja) | 2015-06-23 | 2016-12-29 | 株式会社デンソー | バルブタイミング調整装置 |
JP2018165561A (ja) | 2017-03-28 | 2018-10-25 | Ntn株式会社 | 転がり軸受 |
WO2019059298A1 (ja) | 2017-09-22 | 2019-03-28 | Ntn株式会社 | 電動アクチュエータ |
WO2020137782A1 (ja) | 2018-12-28 | 2020-07-02 | 株式会社デンソー | バルブタイミング調整装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5689816A (en) | 1979-12-20 | 1981-07-21 | Amano Corp | Filter dust removing device in dust collector |
JP7196493B2 (ja) | 2017-11-06 | 2022-12-27 | 株式会社デンソー | バルブタイミング調整装置 |
-
2020
- 2020-08-07 JP JP2020135345A patent/JP7424245B2/ja active Active
-
2021
- 2021-06-01 DE DE102021114133.8A patent/DE102021114133A1/de active Pending
- 2021-08-04 US US17/393,722 patent/US20220042426A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20160251986A1 (en) | 2013-10-08 | 2016-09-01 | Schaeffler Technologies AG & Co. KG | Camshaft adjusting device |
WO2016076152A1 (ja) | 2014-11-10 | 2016-05-19 | Ntn株式会社 | 深溝玉軸受の組立方法および深溝玉軸受 |
WO2016208105A1 (ja) | 2015-06-23 | 2016-12-29 | 株式会社デンソー | バルブタイミング調整装置 |
JP2018165561A (ja) | 2017-03-28 | 2018-10-25 | Ntn株式会社 | 転がり軸受 |
WO2019059298A1 (ja) | 2017-09-22 | 2019-03-28 | Ntn株式会社 | 電動アクチュエータ |
WO2020137782A1 (ja) | 2018-12-28 | 2020-07-02 | 株式会社デンソー | バルブタイミング調整装置 |
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Publication number | Publication date |
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US20220042426A1 (en) | 2022-02-10 |
JP2022030986A (ja) | 2022-02-18 |
DE102021114133A1 (de) | 2022-02-10 |
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