JPH0310006U - - Google Patents
Info
- Publication number
- JPH0310006U JPH0310006U JP7217589U JP7217589U JPH0310006U JP H0310006 U JPH0310006 U JP H0310006U JP 7217589 U JP7217589 U JP 7217589U JP 7217589 U JP7217589 U JP 7217589U JP H0310006 U JPH0310006 U JP H0310006U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- internal combustion
- operating state
- hydraulic pressure
- combustion engine
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000005856 abnormality Effects 0.000 claims 1
- 239000003921 oil Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 1
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Valve Device For Special Equipments (AREA)
Description
第１図は、本考案を適用した内燃機関の動弁機
構を示す上面図である。第２図は、第１図の矢印
から見た矢視図である。第３図は、低速運転状
態に於ける第２図の−線に沿う断面図である
。第４図は、本考案を４気筒内燃機関に適用した
場合の給油系を示す油圧回路図である。第５図は
、第２給油系統を示す低速運転状態の油圧回路図
である。
１ａ，１ｂ……吸気弁、２……カム軸、３ａ，
３ｂ……低速用カム、４……高速用カム、５……
第１ロツカアーム、６……第２ロツカアーム、７
……第３ロツカアーム、５ａ〜７ａ……カムスリ
ツパ、８，８ｉ，８ｅ……ロツカシヤフト、９ａ
，９ｂ…タペツトねじ、１０ａ，１０ｂ……ロツ
クナツト、１１，１１ｉ，１１ｅ……連結切換装
置、１２ａ，１２ｂ……リテーナ、１３ａ，１３
ｂ……バルブスプリング、１４……第１ガイド孔
、１５……第１切換ピン、１６……油圧室、１７
……通路、１８，１８ｉ，１８ｅ……作動油供給
通路、１９……第２ガイド孔、２０……第２切換
ピン、２１……第３ガイド孔、２２……ストツパ
ピン、２３……ガイドスリーブ、２４…軸部、２
５……リターンスプリング、３１ｉ，３１ｅ……
動弁装置、３２……電磁切換弁、３３……フイル
タ、３４……切換弁、３５……メインオイルギヤ
ラリ、３６……オイルパン、３７……オイルポン
プ、３８……リリーフ弁、３９……オイルフイル
タ、４０……オイルクーラ、４１ａ〜４１ｅ……
通路、４２ａ〜４２ｅ……カムジヤーナル、４３
……油路、４４……オリフイス、４５ｉ，４５ｅ
……給油路、４６ｉ，４６ｅ……潤滑油噴出孔、
４７ｉ，４７ｅ……カムジヤーナル、４８ｉ，４
８ｅ……通路、４９ｉ，４９ｅ……オリフイス、
５０ｉ，５０ｅ……給油路、５１ｉ，５１ｅ……
潤滑油噴出孔、５２……第１給油系統、５３……
第２給油系統、５４，５５……チエツク弁、６１
……オイルタンク、６２……電動ポンプ、６３…
…フイルタ、６４……圧力調整機、６５……コン
ピユータユニツト、６６……温度調整機、７１…
…スプール弁、７２……電磁弁、７３……シリン
ダヘツド、７４……ハウジング、７５……弁体、
７６……給油口、７７……通路、７８……入口ポ
ート、７９……出口ポート、８０……スプリング
、８１……オリフイス孔、８２……バイパスポー
ト、８３……ばね室、８４……オリフイス孔、８
５……管路、８６……入口ポート、８７……出口
ポート、８８……管路、８９……接続孔、９０…
…端子、９１……プランジヤ、９２…油圧センサ
。
FIG. 1 is a top view showing a valve mechanism for an internal combustion engine to which the present invention is applied. FIG. 2 is a view taken from the arrow in FIG. 1. FIG. 3 is a sectional view taken along the - line in FIG. 2 in a low-speed operating state. FIG. 4 is a hydraulic circuit diagram showing an oil supply system when the present invention is applied to a four-cylinder internal combustion engine. FIG. 5 is a hydraulic circuit diagram showing the second oil supply system in a low speed operating state. 1a, 1b...Intake valve, 2...Camshaft, 3a,
3b...Low speed cam, 4...High speed cam, 5...
1st Rotsuka arm, 6... 2nd Rotsuka arm, 7
...3rd rock arm, 5a-7a...cam slipper, 8, 8i, 8e... rock shaft, 9a
, 9b... Tappet screw, 10a, 10b... Lock nut, 11, 11i, 11e... Connection switching device, 12a, 12b... Retainer, 13a, 13
b... Valve spring, 14... First guide hole, 15... First switching pin, 16... Hydraulic chamber, 17
... Passage, 18, 18i, 18e ... Hydraulic oil supply passage, 19 ... Second guide hole, 20 ... Second switching pin, 21 ... Third guide hole, 22 ... Stopper pin, 23 ... Guide sleeve , 24... shaft portion, 2
5... Return spring, 31i, 31e...
Valve gear, 32... Solenoid switching valve, 33... Filter, 34... Switching valve, 35... Main oil gear, 36... Oil pan, 37... Oil pump, 38... Relief valve, 39... ...Oil filter, 40...Oil cooler, 41a to 41e...
Passageway, 42a-42e... Camzianaru, 43
...Oil passage, 44...Orifice, 45i, 45e
...Oil supply path, 46i, 46e...Lubricating oil spout hole,
47i, 47e...cam journal, 48i, 4
8e... passage, 49i, 49e... orifice,
50i, 50e... Oil supply path, 51i, 51e...
Lubricating oil spout hole, 52...first oil supply system, 53...
2nd oil supply system, 54, 55...Check valve, 61
...Oil tank, 62...Electric pump, 63...
...Filter, 64...Pressure regulator, 65...Computer unit, 66...Temperature regulator, 71...
... Spool valve, 72 ... Solenoid valve, 73 ... Cylinder head, 74 ... Housing, 75 ... Valve body,
76... Oil supply port, 77... Passage, 78... Inlet port, 79... Outlet port, 80... Spring, 81... Orifice hole, 82... Bypass port, 83... Spring chamber, 84... Orifice Hole, 8
5... Pipe line, 86... Inlet port, 87... Outlet port, 88... Pipe line, 89... Connection hole, 90...
...terminal, 91...plunger, 92...hydraulic sensor.
Claims (1)
駆動される吸気弁または排気弁と、前記カムの揚
程を前記弁に伝達するべく互いに相対変位可能に
隣接配置された複数のカムフオロワと、機関の運
転状態に応じて油圧により前記カムフオロワを選
択的に連結または連結解除することによつて弁作
動状態を変更する連結切換手段とを備える内燃機
関の動弁機構であつて、 前記機関により駆動されるオイルポンプとは別
個に、前記連結切換手段に油圧を供給するために
前記機関の運転状態に応じて駆動制御される電動
ポンプを有することを特徴とする内燃機感の動弁
機構。 (2) 前記連結切換手段への油圧が、前記オイル
ポンプ側及び前記電動ポンプ側の双方から供給さ
れることを特徴とする実用新案登録請求の範囲第
１項に記載の内燃機関の動弁機構。 (3) 前記電動ポンプの出力が弁作動状態の切換
時に高く、かつそれ以外は低くなるように前記電
動ポンプが制御されることを特徴とする実用新案
登録請求の範囲第２項に記載の内燃機関の動弁機
構。 (4) 前記連結切換手段への油圧が、弁作動状態
の切換時にのみ前記オイルポンプ側及び前記電動
ポンプ側の双方から供給され、かつそれ以外は前
記オイルポンプ側のみから供給されることを特徴
とする実用新案登録請求の範囲第１項に記載の内
燃機関の動弁機構。 (5) 前記連結切換手段への油圧が、弁作動状態
の切換動作に異常が生じた場合には前記オイルポ
ンプ側から供給されることを特徴とする実用新案
登録請求の範囲第２項または第４項に記載の内燃
機関の動弁機構。[Claims for Utility Model Registration] (1) An intake valve or an exhaust valve that is driven to open and close by a cam that rotates in synchronization with the crankshaft, and an intake valve or an exhaust valve that is arranged adjacent to each other so as to be relatively displaceable to transmit the lift of the cam to the valve. A valve mechanism for an internal combustion engine, comprising a plurality of cam followers and a connection switching means for selectively connecting or disconnecting the cam followers using hydraulic pressure depending on the operating condition of the engine, thereby changing the valve operating state. , an electric pump whose drive is controlled according to the operating state of the engine for supplying hydraulic pressure to the connection switching means separately from the oil pump driven by the engine; Valve mechanism. (2) The valve train mechanism for an internal combustion engine according to claim 1, wherein the hydraulic pressure to the connection switching means is supplied from both the oil pump side and the electric pump side. . (3) The internal combustion engine according to claim 2, wherein the electric pump is controlled so that the output of the electric pump is high when the valve operating state is changed and is low at other times. Engine valve mechanism. (4) Hydraulic pressure to the connection switching means is supplied from both the oil pump side and the electric pump side only when switching the valve operating state, and is otherwise supplied only from the oil pump side. A valve train mechanism for an internal combustion engine according to claim 1 of the utility model registration claim. (5) Hydraulic pressure to the connection switching means is supplied from the oil pump side when an abnormality occurs in the switching operation of the valve operating state. The valve mechanism for an internal combustion engine according to item 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989072175U JPH0717766Y2 (en) | 1989-06-20 | 1989-06-20 | Valve mechanism of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989072175U JPH0717766Y2 (en) | 1989-06-20 | 1989-06-20 | Valve mechanism of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0310006U true JPH0310006U (en) | 1991-01-30 |
| JPH0717766Y2 JPH0717766Y2 (en) | 1995-04-26 |
Family
ID=31609882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989072175U Expired - Fee Related JPH0717766Y2 (en) | 1989-06-20 | 1989-06-20 | Valve mechanism of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717766Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009167979A (en) * | 2008-01-18 | 2009-07-30 | Toyota Motor Corp | Hydraulic control device for engine |
| JP2010236522A (en) * | 2009-03-31 | 2010-10-21 | Honda Motor Co Ltd | Hydraulic pressure warning system for internal combustion engine |
| JP2011214499A (en) * | 2010-03-31 | 2011-10-27 | Honda Motor Co Ltd | Internal combustion engine with variable valve train |
| JP2012219806A (en) * | 2011-04-14 | 2012-11-12 | Aisin Seiki Co Ltd | Hydraulic control device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2388634A (en) * | 2002-05-15 | 2003-11-19 | Dana Automotive Ltd | Engine lubrication system having dual/auxiliary pump operation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415415A (en) * | 1987-07-10 | 1989-01-19 | Honda Motor Co Ltd | Tappet valve system for internal combustion engine |
-
1989
- 1989-06-20 JP JP1989072175U patent/JPH0717766Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6415415A (en) * | 1987-07-10 | 1989-01-19 | Honda Motor Co Ltd | Tappet valve system for internal combustion engine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009167979A (en) * | 2008-01-18 | 2009-07-30 | Toyota Motor Corp | Hydraulic control device for engine |
| JP2010236522A (en) * | 2009-03-31 | 2010-10-21 | Honda Motor Co Ltd | Hydraulic pressure warning system for internal combustion engine |
| JP2011214499A (en) * | 2010-03-31 | 2011-10-27 | Honda Motor Co Ltd | Internal combustion engine with variable valve train |
| JP2012219806A (en) * | 2011-04-14 | 2012-11-12 | Aisin Seiki Co Ltd | Hydraulic control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717766Y2 (en) | 1995-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |