JPH0717909U - Crankshaft end oil removing device for internal combustion engine - Google Patents
Crankshaft end oil removing device for internal combustion engineInfo
- Publication number
- JPH0717909U JPH0717909U JP5195693U JP5195693U JPH0717909U JP H0717909 U JPH0717909 U JP H0717909U JP 5195693 U JP5195693 U JP 5195693U JP 5195693 U JP5195693 U JP 5195693U JP H0717909 U JPH0717909 U JP H0717909U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- chamber
- crankshaft
- oil removing
- crank
- 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
Abstract
(57)【要約】
【目的】 本考案のクランク軸端油切り装置は、クラン
ク軸後方に油切り室１，２を設け、クランク室６の内圧
による油の油切り室への逆流入を防ぐとともに、クラン
ク室６内へ油を回収ししかも機関の全長を短縮可能とし
たことを目的としている。
【構成】 クランク軸の出力側外周に設けられた歯車注
油飛沫を遮蔽する油切り室１と、さらにその後方の軸端
部外周に１個又は複数個設けられた油切り室２と、前記
各油切り室１，２の排油口にそれぞれ取付られたＵ字管
３，４とを有してなることを特徴としている。
(57) [Abstract] [Objective] The crankshaft end oil removing device of the present invention is provided with oil removing chambers 1 and 2 at the rear of the crankshaft to prevent the reverse flow of oil into the oil removing chamber due to the internal pressure of the crank chamber 6. At the same time, the purpose is to collect oil into the crank chamber 6 and to shorten the total length of the engine. [Structure] An oil removing chamber 1 provided on the outer circumference of the output side of the crankshaft to shield gear oil splashes, and one or more oil removing chambers 2 provided on the outer circumference of the shaft end portion behind the gear cutting chamber 2. It is characterized by having U-shaped pipes 3 and 4 attached to the oil drain ports of the oil removing chambers 1 and 2, respectively.
Description
【０００１】[0001]
本考案は内燃機関のクランク軸端油切り装置に関する。 The present invention relates to a crankshaft end oil removing device for an internal combustion engine.
【０００２】[0002]
図２，３は従来形クランク軸端油切り装置を図示したもので、図２は歯車注油 の飛沫を遮蔽する油切り室０１を設けたものであり、その底部排出口より漏油を クランク室に回収するようにしたものであり、図３はクランク軸のクランク室貫 通部にオイルシール０２を設け、該部よりの漏油を防止するように形成したもの である。 2 and 3 show a conventional crankshaft end oil removing device, and FIG. 2 shows an oil removing chamber 01 that shields splashes of gear lubrication, and leaks oil from the bottom discharge port of the crank chamber. In FIG. 3, an oil seal 02 is provided at the crank chamber penetration portion of the crankshaft to prevent oil leakage from that portion.
【０００３】[0003]
ところが図２の第１従来例では、油切り室０１の排出口がクランク室内に直接 開口しているため、該排出口よりクランク室の内圧による油が油切り室０１内へ 逆流入する欠点がある。 又図３の第２従来例では歯車注油の飛沫が直接軸端部に当るので、オイルシー ル０２の摩耗が進行すると油密が困難となる欠点がある。 前記のとおり、トランクピストン型内燃機関においてはこれらの従来装置では クランク室の内圧が高くなるため、クランク軸貫通部からの内圧による油の吹き 出しを防止するのは困難であった。 However, in the first conventional example shown in FIG. 2, since the discharge port of the oil removing chamber 01 is directly opened in the crank chamber, there is a drawback that oil due to the internal pressure of the crank chamber flows back into the oil removing chamber 01 from the discharge port. is there. Further, in the second conventional example shown in FIG. 3, since gear oil spray splashes directly on the shaft end, there is a drawback that if the wear of the oil seal 02 advances, oil tightness becomes difficult. As described above, in the trunk piston type internal combustion engine, it is difficult to prevent the oil from being blown out from the crankshaft penetrating portion due to the increase in the internal pressure of the crank chamber in these conventional devices.
【０００４】 本考案の目的はカム軸駆動歯車室のクランク軸端面側にクランク軸の軸受を設 けない機関においてクランク軸後方に油切り室を設け、クランク室の内圧による 油の油切り室への逆流入を防ぐと共に、クランク室６内に油を回収することを可 能にする内燃機関のクランク軸端油切り装置を提供するにある。An object of the present invention is to provide an oil draining chamber behind the crank shaft in an engine that does not have a crank shaft bearing on the crank shaft end face side of the cam shaft driving gear chamber, and to move the oil to the oil drain chamber by the internal pressure of the crank chamber. Another object of the present invention is to provide a crankshaft-end oil removing device for an internal combustion engine, which can prevent the reverse inflow of oil and collect oil in the crank chamber 6.
【０００５】[0005]
本考案の内燃機関のクランク軸端油切り装置はカム軸駆動歯車室のクランク出 力軸端側にクランク軸の軸受を設けない内燃機関において、クランク軸の出力側 外周に設けられ歯車注油飛沫を遮蔽する油切り室１と、さらにその後方の軸端部 外周に少なくとも１個設けられた油切り室２と、前記各油切り室１，２からの排 油口にそれぞれ取付られたＵ字管３，４とを有してなり、クランク室の内圧によ る油の前記油切り室への逆流入を防ぐとともにクランク室内へ油を回収すること を可能としたことを特徴としている。 The crankshaft end oil removing device for an internal combustion engine of the present invention is an internal combustion engine that does not have a crankshaft bearing on the crank output shaft end side of the camshaft drive gear chamber. An oil draining chamber 1 to be shielded, at least one oil draining chamber 2 provided on the outer periphery of a shaft end portion behind the oil draining chamber 2, and a U-shaped pipe attached to an oil drain port from each of the oil draining chambers 1 and 2. 3 and 4 are provided, and it is possible to prevent the oil from flowing back into the oil removing chamber due to the internal pressure of the crank chamber and to collect the oil into the crank chamber.
【０００６】[0006]
クランク軸と共に回転する油切りリング５によってクランク室６及び歯車室７ から仕切られた油切り室１に浸入した油は、図１のように油切り室１をへてＵ字 管３に溜り、クランク室６との差圧Ｈ1 を保ちながらクランク室６内へ排出され る。次に歯車ケーシング８とクランク軸９との微少な隙間から漏出した油は、油 切り室２に回収され下方のＵ字管４に溜り、クランク室６との差圧Ｈ2 を保ちな がらクランク室６内へ排出される。なおＵ字管３，４内の油はともにクランク室 ６の内圧による該油切り室への逆流入を防止し前記作用と相俣って軸貫通部１０ からの油洩れを防止している。The oil that has entered the oil draining chamber 1 partitioned from the crank chamber 6 and the gear chamber 7 by the oil draining ring 5 that rotates together with the crankshaft, collects in the U-shaped pipe 3 through the oil draining chamber 1 as shown in FIG. It is discharged into the crank chamber 6 while maintaining the differential pressure H 1 with the crank chamber 6. Next, the oil leaked from the minute gap between the gear casing 8 and the crankshaft 9 is collected in the oil removing chamber 2 and collected in the U-shaped pipe 4 below, and the crank pressure is maintained while maintaining the differential pressure H 2 with the crank chamber 6. It is discharged into the chamber 6. The oil in the U-shaped pipes 3 and 4 is prevented from flowing back into the oil removing chamber due to the internal pressure of the crank chamber 6, and in combination with the above action, the oil leakage from the shaft penetrating portion 10 is prevented.
【０００７】[0007]
図１を参照し本考案の実施例について説明する。 本実施例は（カム軸駆動）歯車室７のクランク出力軸端側にクランク軸の軸受 を設けない内燃機関に適用されるクランク軸端油切り装置である。 図において１は歯車注油の飛沫を遮蔽するための（第１の）油切り室、２はさ らその後方の軸端部に設けられた（第２の）油切り室、３，４は油切り室１及び ２にそれぞれ取付けられたＵ字管、５はクランク軸に設けられた油切りリング、 ６はクランク室、７はカム軸等を駆動する歯車を収容する歯車室、８は該歯車室 を蔽う歯車ケーシング、９はクランク軸、１０は軸貫通部である。 An embodiment of the present invention will be described with reference to FIG. This embodiment is a crankshaft end oil removing device applied to an internal combustion engine in which a crankshaft bearing is not provided on the crank output shaft end side of the (camshaft drive) gear chamber 7. In the figure, 1 is a (first) oil draining chamber for shielding splashes of gear lubrication, 2 is a (second) oil draining chamber provided at the rear end of the shaft, and 3 and 4 are oil draining chambers. U-shaped tubes attached to the cutting chambers 1 and 2, respectively, 5 is an oil draining ring provided on the crankshaft, 6 is a crank chamber, 7 is a gear chamber for accommodating gears for driving a cam shaft, and 8 is the gear. A gear casing that covers the chamber, 9 is a crankshaft, and 10 is a shaft penetrating portion.
【０００８】 次に前記実施例の作用について説明する。 機関運転中はクランク室６内はブローバイ等により内圧が上昇する。これによ りクランク軸９の出力側後方より潤滑油が漏出しようとする。 クランク軸９と共に回転する油切りリング５によってクランク室６及び歯車室 ７から仕切られた油切り室１に浸入した油は下方のＵ字管３に溜り、クランク室 ６との差圧Ｈ1 を保ちながらクランク室６内へ排出される。Next, the operation of the above embodiment will be described. During engine operation, the internal pressure in the crank chamber 6 rises due to blow-by or the like. This causes the lubricating oil to leak from the rear of the output side of the crankshaft 9. The oil that has entered the oil draining chamber 1 partitioned from the crank chamber 6 and the gear chamber 7 by the oil draining ring 5 that rotates together with the crank shaft 9 collects in the lower U-shaped pipe 3 and causes a pressure difference H 1 with the crank chamber 6. It is discharged into the crank chamber 6 while keeping it.
【０００９】 次に歯車ケーシング８とクランク軸９との微少な隙間から漏出した油は、油切 り室２で回収されて下方のＵ字管４に溜り、クランク室６との差圧Ｈ2 を保ちな がらクランク室６へ排出される。 なお、Ｕ字管３，４内の油はクランク室６の内圧による油の油切り室１，２へ の逆流入を防止し、前記作用と相俣って軸貫通部１０からの油漏れを防止するこ とができる。Next, the oil leaked from the minute gap between the gear casing 8 and the crankshaft 9 is collected in the oil cutting chamber 2 and collected in the U-shaped pipe 4 below, and the differential pressure H 2 with the crank chamber 6 Is discharged to the crank chamber 6 while maintaining. The oil in the U-shaped pipes 3 and 4 prevents the oil from flowing back into the oil draining chambers 1 and 2 due to the internal pressure of the crank chamber 6, and prevents the oil from leaking from the shaft penetrating portion 10 in combination with the above action. can do.
【００１０】[0010]
本考案を採用することに次のような効果が期待できる。 （１）油切り室排出口からの油の逆流入がなく油をクランク室内へ排出できる ため、クランク室外への油排出装置が不要となる。 （２）端部のクランク軸軸受を廃止し、機関フレーム本体を短縮しているにも 拘らず、歯車注油による軸貫通部１０よりの油の吹き出しを防止することができ る。 The following effects can be expected by adopting the present invention. (1) Since the oil can be discharged into the crank chamber without the reverse flow of oil from the oil draining chamber discharge port, the oil discharging device outside the crank chamber is not required. (2) Despite the elimination of the crankshaft bearing at the end and the shortening of the engine frame body, it is possible to prevent the oil from spouting from the shaft penetrating portion 10 due to gear lubrication.
【図１】本考案の第１実施例に係る油切り装置図。FIG. 1 is a view of an oil removing device according to a first embodiment of the present invention.
【図２】第１従来例の図１応当図。FIG. 2 is a corresponding diagram of FIG. 1 of a first conventional example.
【図３】第２従来例の図１応当図。FIG. 3 is an illustration corresponding to FIG. 1 of a second conventional example.
１…油切り室、２…油切り室、３…Ｕ字管、４…Ｕ字
管、５…油切りリング、６…クランク室、７…歯車室、
８…歯車ケーシング、９…クランク軸、１０…軸貫通
部、０１…油切り室、０２…オイルシール。1 ... Oil draining chamber, 2 ... Oil draining chamber, 3 ... U-tube, 4 ... U-shaped tube, 5 ... Oil draining ring, 6 ... Crank chamber, 7 ... Gear chamber,
8 ... Gear casing, 9 ... Crank shaft, 10 ... Shaft penetrating portion, 01 ... Oil removing chamber, 02 ... Oil seal.
Claims (1)
にクランク軸の軸受を設けない内燃機関において、クラ
ンク軸の出力側外周に設けられ歯車注油飛沫を遮蔽する
油切り室（１）と、さらにその後方の軸端部外周に少な
くとも１個設けられた油切り室（２）と、前記各油切り
室（１），（２）の排油口にそれぞれ取付けられたＵ字
管（３），（４）とを有してなり、クランク室の内圧に
よる油の油切り室（１），（２）への逆流入を防ぐと共
に、クランク室内へ油を回収することを可能にする内燃
機関のクランク軸端油切り装置。1. In an internal combustion engine in which a crankshaft bearing is not provided on the crank output shaft end side of a camshaft drive gear chamber, an oil draining chamber (1) is provided on the output side outer periphery of the crankshaft to shield gear oil splashes. Further, at least one oil draining chamber (2) is provided on the outer periphery of the shaft end portion rearward thereof, and U-shaped pipes (3) attached to the oil drain ports of the oil draining chambers (1) and (2), respectively. ), (4), which prevents the oil from flowing back into the oil draining chambers (1), (2) due to the internal pressure of the crank chamber, and makes it possible to recover the oil into the crank chamber. Engine crankshaft end oil removing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993051956U JP2587120Y2 (en) | 1993-08-31 | 1993-08-31 | Oil removal device for crankshaft end of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993051956U JP2587120Y2 (en) | 1993-08-31 | 1993-08-31 | Oil removal device for crankshaft end of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0717909U true JPH0717909U (en) | 1995-03-31 |
| JP2587120Y2 JP2587120Y2 (en) | 1998-12-14 |
Family
ID=12901329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993051956U Expired - Fee Related JP2587120Y2 (en) | 1993-08-31 | 1993-08-31 | Oil removal device for crankshaft end of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2587120Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011185130A (en) * | 2010-03-08 | 2011-09-22 | Kubota Corp | Diesel engine |
| JP2013079630A (en) * | 2011-10-05 | 2013-05-02 | Daihatsu Diesel Mfg Co Ltd | Seal structure of crank shaft end |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100975217B1 (en) * | 2008-11-26 | 2010-08-10 | 현대중공업 주식회사 | Lubricating Oil leak protecting device for Diesel engine Crank-shaft |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0552442U (en) * | 1991-12-17 | 1993-07-13 | ダイハツディーゼル株式会社 | Crankshaft end seal structure for diesel engine |
-
1993
- 1993-08-31 JP JP1993051956U patent/JP2587120Y2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0552442U (en) * | 1991-12-17 | 1993-07-13 | ダイハツディーゼル株式会社 | Crankshaft end seal structure for diesel engine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011185130A (en) * | 2010-03-08 | 2011-09-22 | Kubota Corp | Diesel engine |
| JP2013079630A (en) * | 2011-10-05 | 2013-05-02 | Daihatsu Diesel Mfg Co Ltd | Seal structure of crank shaft end |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2587120Y2 (en) | 1998-12-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980901 |
|
| LAPS | Cancellation because of no payment of annual fees |