JPS56589A - Rotary type hydraulic pump - Google Patents
Rotary type hydraulic pumpInfo
- Publication number
- JPS56589A JPS56589A JP7462879A JP7462879A JPS56589A JP S56589 A JPS56589 A JP S56589A JP 7462879 A JP7462879 A JP 7462879A JP 7462879 A JP7462879 A JP 7462879A JP S56589 A JPS56589 A JP S56589A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- porous material
- inner periphery
- hydraulic pump
- rotary 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.)
- Pending
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Powder Metallurgy (AREA)
Abstract
PURPOSE: To minimize deterioration of sealing property and strain due to a thermal expansion and thus to improve wear resistance by forming a cylinder inner periphery with a porous material with low thermal conductivity and specific shape.
CONSTITUTION: Inner periphery 11 of a cylinder 1 is formed with a porous material 5. For porous material, those with low thermal conductivity such as iron sintered material, flame coating material, ceramics and cermet are applicable, and the hole content is selected at 4W17vol%. Then, the thickness is selected at 0.05mm or over. Thus a heat resistance is secured for a long period of time, and a strength against strain according to a thermal expansion of a side housing 2 and the cylinder 1 can be improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7462879A JPS56589A (en) | 1979-06-15 | 1979-06-15 | Rotary type hydraulic pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7462879A JPS56589A (en) | 1979-06-15 | 1979-06-15 | Rotary type hydraulic pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56589A true JPS56589A (en) | 1981-01-07 |
Family
ID=13552641
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7462879A Pending JPS56589A (en) | 1979-06-15 | 1979-06-15 | Rotary type hydraulic pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56589A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59224402A (en) * | 1983-06-03 | 1984-12-17 | Oval Eng Co Ltd | Non-engagement flow meter or prime mover of volume type |
JPS6110991U (en) * | 1984-06-25 | 1986-01-22 | トヨタ自動車株式会社 | Ceramics vane pump |
JPS6180380U (en) * | 1984-10-31 | 1986-05-28 | ||
JPS62108592U (en) * | 1985-12-26 | 1987-07-10 | ||
JPS62197786U (en) * | 1986-06-05 | 1987-12-16 | ||
JP2013241895A (en) * | 2012-05-21 | 2013-12-05 | Nabtesco Automotive Corp | Vacuum pump |
CN108240336A (en) * | 2018-02-02 | 2018-07-03 | 广东美芝制冷设备有限公司 | Compressor and air conditioner |
-
1979
- 1979-06-15 JP JP7462879A patent/JPS56589A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59224402A (en) * | 1983-06-03 | 1984-12-17 | Oval Eng Co Ltd | Non-engagement flow meter or prime mover of volume type |
JPS6110991U (en) * | 1984-06-25 | 1986-01-22 | トヨタ自動車株式会社 | Ceramics vane pump |
JPH0232877Y2 (en) * | 1984-06-25 | 1990-09-05 | ||
JPS6180380U (en) * | 1984-10-31 | 1986-05-28 | ||
JPH0219599Y2 (en) * | 1984-10-31 | 1990-05-30 | ||
JPS62108592U (en) * | 1985-12-26 | 1987-07-10 | ||
JPS62197786U (en) * | 1986-06-05 | 1987-12-16 | ||
JP2013241895A (en) * | 2012-05-21 | 2013-12-05 | Nabtesco Automotive Corp | Vacuum pump |
CN108240336A (en) * | 2018-02-02 | 2018-07-03 | 广东美芝制冷设备有限公司 | Compressor and air conditioner |
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