JPH0299278U - - Google Patents
Info
- Publication number
- JPH0299278U JPH0299278U JP719289U JP719289U JPH0299278U JP H0299278 U JPH0299278 U JP H0299278U JP 719289 U JP719289 U JP 719289U JP 719289 U JP719289 U JP 719289U JP H0299278 U JPH0299278 U JP H0299278U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- square ring
- pressure chamber
- type hydraulic
- gear type
- 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
- 230000005489 elastic deformation Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000004308 accommodation Effects 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Description
第１図はギヤ式油圧ポンプ側面断面図。第２図
は第１図における―矢視断面図。第３図は第
２図における―矢視断面図。第４図は角リン
グ正面図。第５図はバツクアツプリング正面図。
第６図は角リングとバツクアツプリング斜視図。
第７図は第４図における―矢視拡大断面図。
第８図、第９図は舌片の他の実施例を示す正面図
である。
１……ポンプケース、１ｂ……サクシヨンポー
ト、１ｃ……吐出ポート、２……ポンプケース蓋
体、５，６……ポンプ軸、５ａ，６ａ……ポンプ
ギヤ、７……ウエアプレート、８……低圧室、９
……高圧室、１０……角リング、１０ｃ……舌片
、１０ｄ……収容溝、１１……バツクアツプリン
グ。
Figure 1 is a side sectional view of the gear type hydraulic pump. FIG. 2 is a sectional view taken along the arrow - in FIG. 1. FIG. 3 is a sectional view taken along the arrow - in FIG. 2. Figure 4 is a front view of the square ring. Figure 5 is a front view of the back-up spring.
FIG. 6 is a perspective view of the square ring and back-up spring.
FIG. 7 is an enlarged sectional view taken in the direction of the - arrow in FIG. 4.
FIGS. 8 and 9 are front views showing other embodiments of the tongue piece. DESCRIPTION OF SYMBOLS 1... Pump case, 1b... Suction port, 1c... Discharge port, 2... Pump case lid, 5, 6... Pump shaft, 5a, 6a... Pump gear, 7... Wear plate, 8... ...Low pressure chamber, 9
...High pressure chamber, 10... Square ring, 10c... Tongue piece, 10d... Accommodation groove, 11... Backup spring.
Claims (1)
ケース１又はポンプケース蓋体２との間の隙間か
らの圧油の漏れを遮閉すべくウエアプレート７，
７をポンプギヤ５ａ，６ａの側面に介装すると共
に、該ウエアプレート７のポンプギヤ５ａ，６ａ
と逆の側に配置した弾性体からなる角リング１０
と、該角リング１０の弾性変形を防止する硬質材
のバツクアツプリング１１とにより、ギヤ式油圧
ポンプのサクシヨンポート１ｂに通じる低圧室８
と、吐出ポート１ｃに通じる高圧室９とを仕切る
よう構成されたものにおいて、前記角リング１０
にはバツクアツプリング１１の収容溝１０ｄと、
これに連なつて部分的に角リング１０本体と同一
厚みの舌片１０ｃとを形成し、該舌片１０ｃを低
圧室８内に配置したことを特徴とするギヤ式油圧
ポンプのシール機構。 A wear plate 7 is used to block leakage of pressure oil from the gap between the side surface of the pump gear of the gear type hydraulic pump and the pump case 1 or the pump case lid 2.
7 is interposed on the side surface of the pump gears 5a, 6a, and the pump gears 5a, 6a of the wear plate 7 are
A square ring 10 made of an elastic body placed on the opposite side of the
and a back-up spring 11 made of hard material that prevents elastic deformation of the square ring 10, a low pressure chamber 8 communicating with the suction port 1b of the gear type hydraulic pump is formed.
and a high pressure chamber 9 communicating with the discharge port 1c, in which the square ring 10
has a housing groove 10d for the back-up spring 11, and
A sealing mechanism for a gear type hydraulic pump characterized in that a tongue piece 10c having the same thickness as the main body of the square ring 10 is partially formed in series with the square ring 10, and the tongue piece 10c is disposed inside the low pressure chamber 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989007192U JPH0617016Y2 (en) | 1989-01-24 | 1989-01-24 | Gear type hydraulic pump seal mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989007192U JPH0617016Y2 (en) | 1989-01-24 | 1989-01-24 | Gear type hydraulic pump seal mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0299278U true JPH0299278U (en) | 1990-08-07 |
| JPH0617016Y2 JPH0617016Y2 (en) | 1994-05-02 |
Family
ID=31212001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989007192U Expired - Lifetime JPH0617016Y2 (en) | 1989-01-24 | 1989-01-24 | Gear type hydraulic pump seal mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0617016Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008274778A (en) * | 2007-04-25 | 2008-11-13 | Showa Corp | Variable displacement pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537753U (en) * | 1978-09-04 | 1980-03-11 | ||
| JPS63113782U (en) * | 1987-01-19 | 1988-07-22 |
-
1989
- 1989-01-24 JP JP1989007192U patent/JPH0617016Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5537753U (en) * | 1978-09-04 | 1980-03-11 | ||
| JPS63113782U (en) * | 1987-01-19 | 1988-07-22 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008274778A (en) * | 2007-04-25 | 2008-11-13 | Showa Corp | Variable displacement pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0617016Y2 (en) | 1994-05-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH01134790U (en) | ||
| JPH0299278U (en) | ||
| JPS61187984U (en) | ||
| JPS63147580U (en) | ||
| JPS63113782U (en) | ||
| JPH0161477U (en) | ||
| JPH03102082U (en) | ||
| JPH0317188U (en) | ||
| DE3865195D1 (en) | GEAR MACHINE (PUMP OR MOTOR). | |
| JPS62181U (en) | ||
| JPH03123992U (en) | ||
| ES8200177A1 (en) | Lubricating-oil gear pump for an I.C. engine | |
| JPH0290377U (en) | ||
| JPH0373685U (en) | ||
| JPS6165288U (en) | ||
| JPS60133191U (en) | internal gear pump | |
| JPS6149085U (en) | ||
| JPS6447478U (en) | ||
| JPS6110985U (en) | gear pump | |
| JPH0193388U (en) | ||
| JPH03123993U (en) | ||
| JPH0292086U (en) | ||
| JPS6331274U (en) | ||
| JPH0354294U (en) | ||
| JPS60133193U (en) | internal gear pump |