JPS6224069Y2 - - Google Patents
Info
- Publication number
- JPS6224069Y2 JPS6224069Y2 JP13134583U JP13134583U JPS6224069Y2 JP S6224069 Y2 JPS6224069 Y2 JP S6224069Y2 JP 13134583 U JP13134583 U JP 13134583U JP 13134583 U JP13134583 U JP 13134583U JP S6224069 Y2 JPS6224069 Y2 JP S6224069Y2
- Authority
- JP
- Japan
- Prior art keywords
- pump body
- pump
- intermediate member
- chamber
- end surface
- 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
Links
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 description 16
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 241001310793 Podium Species 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Description
【考案の詳細な説明】
本考案は中間部材の一方に第１のポンプ室を形
成し、他方に第２のポンプ室を形成し、各々のポ
ンプ室に設けたローターを共通の駆動軸で駆動す
るトロコイド型オイルポンブに関するものであ
る。[Detailed description of the invention] This invention forms a first pump chamber in one of the intermediate members, a second pump chamber in the other, and drives the rotor provided in each pump chamber by a common drive shaft. This article relates to a trochoid type oil pump.
第１図は従来例を示すもので、図面において中
間部材１の一方に第１のポンプ室２を形成する第
１のボデイー３が設けてあり、他方に第２のポン
プ室４を形成する第２のポンプボデイー５が設け
てある。各々のポンプ室２，４に設けられたロー
ターは共通の駆動軸６で駆動され、第１のポンプ
室２は中間部材１に吸入路７と吐出路８が設けて
あり、第２のポンプ室４は中間部材１に吸入路
９、第２のポンプボデイー５に吐出路１０が設け
てある。しかし、上記構造は中間部材１に各々の
ポンプ室２，４の吸入路７，９や第１のポンプ室
２の吐出路８を設ける必要があるため、中間部材
１が軸方向に厚くなり、ポンプ装置が軸方向に長
くなり、たとえばこの種ポンプを内燃機関の潤滑
装置として使用した場合、取付スペースが大きく
なつてしまうという不都合を生じていた。又、中
間部材１に吸入路７，９や吐出路８を設けること
は、油路が複雑になるために、切削加工等の穿孔
工数が多くなり、製産性が低く、製造コストを高
める要因となつている。 FIG. 1 shows a conventional example, in which a first body 3 forming a first pump chamber 2 is provided on one side of an intermediate member 1, and a first body 3 forming a second pump chamber 4 on the other side. Two pump bodies 5 are provided. The rotors provided in each of the pump chambers 2 and 4 are driven by a common drive shaft 6, and the first pump chamber 2 has a suction passage 7 and a discharge passage 8 provided in the intermediate member 1, and the second pump chamber 2 has a suction passage 7 and a discharge passage 8 provided in the intermediate member 1. 4, a suction passage 9 is provided in the intermediate member 1, and a discharge passage 10 is provided in the second pump body 5. However, in the above structure, since it is necessary to provide the intermediate member 1 with the suction passages 7 and 9 of the respective pump chambers 2 and 4 and the discharge passage 8 of the first pump chamber 2, the intermediate member 1 becomes thick in the axial direction. The pump device becomes long in the axial direction, and when this type of pump is used as a lubricating device for an internal combustion engine, for example, the installation space becomes large. Furthermore, providing the suction passages 7 and 9 and the discharge passage 8 in the intermediate member 1 complicates the oil passage, which increases the number of drilling steps such as cutting, which is a factor that lowers productivity and increases manufacturing costs. It is becoming.
本考委はこれらの点に鑑みなされたもので、中
間部材の一方に第１のポンプ室を形成し、他方に
第２のポンプ室を形成し、各々のポンプ室に設け
たローターを共通の駆動軸で駆動するトロコイド
型オイルポンブにおいて、ポンプの軸方向の寸法
を短縮し、しかも安価なポンプを提供することを
目的とするもので、以下図面に示す実施例に基づ
いて本考案を説明する。 This study committee was developed in view of these points, and consists of forming a first pump chamber in one of the intermediate members, a second pump chamber in the other, and using a common rotor for each pump chamber. The object of the present invention is to provide a trochoidal oil pump driven by a drive shaft that has a reduced axial dimension and is inexpensive.The present invention will be described below based on embodiments shown in the drawings.
第２図、第３図、第４図は本考案実施例を示す
もので、本考案ポンプ装置を内燃機関潤滑装置と
して、潤滑油路１９の形成されたシリンダーブロ
ツク２０に取り付けた状態を示している。図面に
おいて、中間部材１１の一方に第１のポンプ室１
２を形成する第１のポンプボデイー１３を設け、
他方に第２のポンプ室１４を形成する第２のポン
プボデイー１５を設け、各々のポンプ室に設けた
ローター１７，１８を共通の駆動軸１６で駆動す
る。まず、第１のポンプ室１２には、第１のポン
プボデイー１３を軸方向に貫通してポンプボデイ
ー１３の外端面に開口する吸入油路２１と、ロー
ター１７端面の第１のポンプボデイー１３に形成
された吐出室２２、ローター１７外周の第１のポ
ンプボデイー１３に軸方向に形成された溝２３、
第１のポンプボデイー１３の径方向に延びた溝と
中間部材１１とにより形成された流路２４、及び
中間部材１１と第２のポンプボデイー１５とを軸
方向に貫通して形成された貫通孔２５を経て第２
のポンプボデイー１５の外端面に開口する吐出油
路とを設け、第２のポンプ室１４には、ローター
１８端面の第２のポンプボデイー１５に形成され
た吸入室２６、ローター１８外周の第２のポンプ
ボデイー１５に軸方向に形成された溝２７、第２
のポンプボデイー１５の径方向に延びた溝と中間
部材１１とにより形成された流路２８、及び中間
部材１１と第１のポンプボデイー１３とを軸方向
に貫通して形成された貫通孔２９を経て第１のポ
ンプボデイー１３の外端面に開口する吸入油路
と、第２のポンプボデイー１５の外端面に開口す
る吐出油路３０とが設けてある。 2, 3, and 4 show embodiments of the present invention, in which the pump device of the present invention is installed as an internal combustion engine lubricating device on a cylinder block 20 in which a lubricating oil passage 19 is formed. There is. In the drawing, a first pump chamber 1 is provided on one side of the intermediate member 11.
a first pump body 13 forming a pump body 2;
A second pump body 15 forming a second pump chamber 14 is provided on the other side, and rotors 17 and 18 provided in each pump chamber are driven by a common drive shaft 16. First, the first pump chamber 12 includes a suction oil passage 21 that passes through the first pump body 13 in the axial direction and opens at the outer end surface of the pump body 13, and a suction oil passage 21 that extends through the first pump body 13 at the end surface of the rotor 17. a discharge chamber 22 formed, a groove 23 formed in the axial direction in the first pump body 13 on the outer periphery of the rotor 17;
A flow path 24 formed by the groove extending in the radial direction of the first pump body 13 and the intermediate member 11, and a through hole formed by penetrating the intermediate member 11 and the second pump body 15 in the axial direction. 2nd after 25
The second pump chamber 14 has a suction chamber 26 formed in the second pump body 15 on the end surface of the rotor 18, and a second pump chamber 26 on the outer periphery of the rotor 18. A groove 27 formed in the axial direction in the pump body 15 of
A flow path 28 formed by the groove extending in the radial direction of the pump body 15 and the intermediate member 11, and a through hole 29 formed by penetrating the intermediate member 11 and the first pump body 13 in the axial direction. A suction oil passage that opens to the outer end surface of the first pump body 13 and a discharge oil passage 30 that opens to the outer end surface of the second pump body 15 are provided.
上記の如く、中間部材１１には貫通孔２５，２
９を形成するだけでなので、中間部材１１は極単
に薄くなり、ポンプ装置の軸方向の寸法を短かく
することが出来る。又、中間部材１１に薄板を用
いることが出来るので、薄き板材にプレス打抜き
を施こすだけで、中間部材１１を得ることが出
来、同時に貫通孔２５，２９を設けることが出来
る。そして、各々のポンプボデイー１３，１５に
形成される油路は、ボデイー１３，１５を鋳造で
成形する際に簡単な金型で成形出来るので、製産
性が向上し、製造コストを低減することが出来
る。又、各々のポンプ室１２，１４が軸線方向に
対して同一方向から吸入し、反対方向に吐出する
ので、油路の設けてある取付部、たとえば内燃機
関のシリンダーブロツク等に固着して使用出来る
ので、余分な油路を設ける必要がない。 As mentioned above, the intermediate member 11 has through holes 25 and 2.
9, the intermediate member 11 can be made extremely thin and the axial dimension of the pump device can be shortened. Further, since a thin plate can be used for the intermediate member 11, the intermediate member 11 can be obtained by simply punching the thin plate material, and the through holes 25 and 29 can be provided at the same time. The oil passages formed in each of the pump bodies 13 and 15 can be formed using a simple mold when casting the bodies 13 and 15, which improves productivity and reduces manufacturing costs. I can do it. Furthermore, since each of the pump chambers 12 and 14 sucks in from the same direction and discharges from the opposite direction with respect to the axial direction, it can be used by being fixed to a mounting part with an oil passage, such as a cylinder block of an internal combustion engine. Therefore, there is no need to provide an extra oil path.
本考案は前述の如くであるから、中間部材の一
方に第１のポンプ室を形成する第１のポンプボデ
イーを設け、他方に第２のポンプ室を形成する第
２のポンプボデイーを設け、各々のポンプ室に設
けたローターを共通の駆動軸で駆動するトロコイ
ド型オイルポンプにおいて、中間部材には貫通孔
を形成するだけなので、中間部材は極単に薄くな
り、ポンプ装置の軸方向の寸法を短かくすること
が出来る。又、中間部材に薄板を用いることが出
来るので、薄い板材にプレス打抜きを施こすだけ
で、中間部材を得ることが出来、同時に貫通孔を
設けることが出来る。そして、各々のポンプボデ
イーに形成される油路は、ポデイーを鋳造で成形
する際に簡単な金型で成型出来るので、製産性が
向上し、製造コストを低減することが出来る。
又、各々のポンプ室が軸線方向に対して同一方向
から吸入し、反対方向に吐出するので、油路の設
けてある取付部、たとえば内燃機関のシリンダー
ブロツク等に固着して使用出来るので、余分な油
路を設ける必要がない等の効果を有する。 Since the present invention is as described above, one of the intermediate members is provided with a first pump body forming a first pump chamber, the other is provided with a second pump body forming a second pump chamber, and each In a trochoid oil pump, in which the rotor installed in the pump chamber is driven by a common drive shaft, only a through hole is formed in the intermediate member, so the intermediate member becomes extremely thin and the axial dimension of the pump device can be shortened. It is possible to do this. Further, since a thin plate can be used for the intermediate member, the intermediate member can be obtained by simply punching the thin plate, and at the same time, through holes can be provided. The oil passages formed in each pump body can be molded using a simple mold when molding the podium by casting, so productivity can be improved and manufacturing costs can be reduced.
In addition, since each pump chamber draws in from the same direction and discharges from the opposite direction with respect to the axial direction, it can be used by being fixed to a mounting part with an oil passage, such as the cylinder block of an internal combustion engine. This has the advantage that there is no need to provide a separate oil passage.
第１図は従来装置を示す縦断面図、第２図は本
考案実施例を示す縦断面図、第３図は第２図Ａ−
Ａ線に沿つた断面図、第４図は第２図Ｂ−Ｂ線に
沿つた断面図である。
符号の説明、１１……薄板、１２……第１のポ
ンプ室、１３……第１のポンプボデイー、１４…
…第２のポンプ室、１５……第２のポンプボデイ
ー、１６……駆動軸、１７，１８……ローター、
２１……吸入油路、２２……吐出室、２３，２７
……溝、２４，２８……流路、２５，２９……貫
通孔、２６……吸入室、３０……吐出油路。
Fig. 1 is a longitudinal sectional view showing a conventional device, Fig. 2 is a longitudinal sectional view showing an embodiment of the present invention, and Fig. 3 is Fig. 2A-
4 is a sectional view taken along line A, and FIG. 4 is a sectional view taken along line BB in FIG. Explanation of symbols, 11... thin plate, 12... first pump chamber, 13... first pump body, 14...
...Second pump chamber, 15...Second pump body, 16...Drive shaft, 17, 18...Rotor,
21... Suction oil path, 22... Discharge chamber, 23, 27
... Groove, 24, 28 ... Channel, 25, 29 ... Through hole, 26 ... Suction chamber, 30 ... Discharge oil path.
Claims (1)
成する第１のポンプボデイー１３を設け、他方に
第２のポンプ室１４を形成する第２のポンプボデ
イー１５を設け、各々のポンプ室に設けたロータ
ー１７，１８を共通の駆動軸１６で駆動するトロ
コイド型オイルポンプにおいて、第１のポンプ室
１２には、第１のポンプボデイー１３を軸方向に
貫通して該ポンプボデイ１３の外端面に開口する
吸入油路２１と、ローター１７端面の第１のポン
プボデイ１３に形成された吐出室２２、ローター
１７外周の第１のポンプボデイー１３に軸方向に
形成された溝２３、第１のポンプボデイー１３の
径方向に延びた溝と中間部材１１とにより形成さ
れた流路２４、及び中間部材１１と第２のポンプ
ボデイー１５とを軸方向に貫通して形成された貫
通孔２５を経て第２のポンプボデイー１５の外端
面に開口する吐出油路とを設け、第２のポンプ室
１４には、ローター１８端面の第２のポンプボデ
イー１５に形成された吸入室２６、ローター１８
外周の第２のポンプボデイー１５に軸方向に形成
された溝２７、第２のポンプボデイー１５の径方
向に延びた溝と中間部材１１とにより形成された
流路２８、及び中間部材１１と第１のポンプボデ
イー１３とを軸方向に貫通して形成された貫通孔
２９を経て第１のポンプボデイー１３の外端面に
開口する吸入油路と、第２のポンプボデイー１５
の外端面に開口する吐出油路３０とが設けてある
ことを特徴とするトロコイド型オイルポンブ。 A first pump body 13 forming a first pump chamber 12 is provided on one side of the intermediate member 11, and a second pump body 15 forming a second pump chamber 14 is provided on the other side. In a trochoidal oil pump in which rotors 17 and 18 are driven by a common drive shaft 16, the first pump chamber 12 has an opening extending through the first pump body 13 in the axial direction and opening at the outer end surface of the pump body 13. a discharge chamber 22 formed in the first pump body 13 on the end surface of the rotor 17, a groove 23 formed in the axial direction in the first pump body 13 on the outer periphery of the rotor 17; The second pump body 15 passes through a flow path 24 formed by a groove extending in the radial direction and the intermediate member 11, and a through hole 25 formed by penetrating the intermediate member 11 and the second pump body 15 in the axial direction. The second pump chamber 14 includes a suction chamber 26 formed in the second pump body 15 at the end surface of the rotor 18, and a discharge oil passage that opens on the outer end surface of the pump body 15.
A groove 27 formed in the axial direction in the second pump body 15 on the outer periphery, a flow path 28 formed by the groove extending in the radial direction of the second pump body 15 and the intermediate member 11, and a channel 28 formed between the intermediate member 11 and the second pump body 15. A suction oil passage opens to the outer end surface of the first pump body 13 through a through hole 29 formed by penetrating the first pump body 13 in the axial direction, and the second pump body 15
A trochoidal oil pump characterized in that a discharge oil passage 30 is provided that opens at an outer end surface of the trochoidal oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13134583U JPS6038186U (en) | 1983-08-25 | 1983-08-25 | Trochoid type oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13134583U JPS6038186U (en) | 1983-08-25 | 1983-08-25 | Trochoid type oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6038186U JPS6038186U (en) | 1985-03-16 |
| JPS6224069Y2 true JPS6224069Y2 (en) | 1987-06-19 |
Family
ID=30296970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13134583U Granted JPS6038186U (en) | 1983-08-25 | 1983-08-25 | Trochoid type oil pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6038186U (en) |
-
1983
- 1983-08-25 JP JP13134583U patent/JPS6038186U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6038186U (en) | 1985-03-16 |
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