JPH0462366U - - Google Patents
Info
- Publication number
- JPH0462366U JPH0462366U JP10451290U JP10451290U JPH0462366U JP H0462366 U JPH0462366 U JP H0462366U JP 10451290 U JP10451290 U JP 10451290U JP 10451290 U JP10451290 U JP 10451290U JP H0462366 U JPH0462366 U JP H0462366U
- Authority
- JP
- Japan
- Prior art keywords
- port
- pressure side
- low pressure
- cylinder
- high pressure
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 230000010349 pulsation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Hydraulic Motors (AREA)
Description
第１図は本考案の実施例を示す弁板部分の正面
図、第２図ａ〜ｄは動作説明図、第３図はピスト
ン式ポンプ・モータの断面図、第４図は弁板部分
の正面図、第５図、第６図は従来例の弁板部分正
面図、第７図、第８図ａ〜ｄは動作説明図である
。
１はケース、２は端板、３はハウジング、４は
シリンダーブロツク、６はシリンダー孔、７はピ
ストン、８はシリンダー室、１０はポート、１１
は弁板、１２はポート、１３，１４は高圧・低圧
ポート、２０は導油孔、２１は逆止弁。
Fig. 1 is a front view of the valve plate portion showing an embodiment of the present invention, Figs. 2 a to d are explanatory diagrams of operation, Fig. 3 is a cross-sectional view of the piston type pump motor, and Fig. 4 is the valve plate portion. The front view, FIGS. 5 and 6 are partial front views of the valve plate of the conventional example, and FIGS. 7 and 8 a to 8 d are explanatory views of the operation. 1 is a case, 2 is an end plate, 3 is a housing, 4 is a cylinder block, 6 is a cylinder hole, 7 is a piston, 8 is a cylinder chamber, 10 is a port, 11
1 is a valve plate, 12 is a port, 13 and 14 are high pressure and low pressure ports, 20 is an oil guide hole, and 21 is a check valve.
Claims (1)
リンダブロツク４を回転自在に設け、このシリン
ダーブロツク４のシリンダー孔６内にピストン７
を嵌挿してシリンダー室８を形成し、このシリン
ダー室８をポート１０、弁板１１の低圧側、高圧
側のポート１２を経て端板２に形成した高圧ポー
ト１３と低圧ポート１４に交互に連通するように
したピストン式ポンプ・モータにおいて、 前記弁板１１における低圧側のポート１２と高
圧側のポート１２の中間にシリンダ室８を低圧側
のポート１２に逆止弁２１を介して連通する導油
孔２０を形成したことを特徴とするピストン式ポ
ンプ・モータの騒音・脈動防止装置。[Claims for Utility Model Registration] A cylinder block 4 is rotatably provided in a housing 3 consisting of a case 1 and an end plate 2, and a piston 7 is installed in a cylinder hole 6 of the cylinder block 4.
are inserted to form a cylinder chamber 8, and this cylinder chamber 8 is alternately communicated with a high pressure port 13 and a low pressure port 14 formed on the end plate 2 through a port 10, a port 12 on the low pressure side of the valve plate 11, and a port 12 on the high pressure side. In the piston type pump motor, there is provided a conductor which communicates the cylinder chamber 8 with the low pressure side port 12 via a check valve 21 between the low pressure side port 12 and the high pressure side port 12 in the valve plate 11. A noise and pulsation prevention device for a piston type pump/motor, characterized in that an oil hole 20 is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10451290U JPH0462366U (en) | 1990-10-05 | 1990-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10451290U JPH0462366U (en) | 1990-10-05 | 1990-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0462366U true JPH0462366U (en) | 1992-05-28 |
Family
ID=31849818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10451290U Pending JPH0462366U (en) | 1990-10-05 | 1990-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0462366U (en) |
-
1990
- 1990-10-05 JP JP10451290U patent/JPH0462366U/ja active Pending
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