CN1271335C - 泵装置 - Google Patents

泵装置 Download PDF

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Publication number
CN1271335C
CN1271335C CN 01125049 CN01125049A CN1271335C CN 1271335 C CN1271335 C CN 1271335C CN 01125049 CN01125049 CN 01125049 CN 01125049 A CN01125049 A CN 01125049A CN 1271335 C CN1271335 C CN 1271335C
Authority
CN
China
Prior art keywords
contact
gear
pump
unit
tooth
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 - Fee Related
Application number
CN 01125049
Other languages
English (en)
Chinese (zh)
Other versions
CN1336491A (zh
Inventor
北村良雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Instruments Corp
Original Assignee
Sankyo Seiki Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sankyo Seiki Manufacturing Co Ltd filed Critical Sankyo Seiki Manufacturing Co Ltd
Publication of CN1336491A publication Critical patent/CN1336491A/zh
Application granted granted Critical
Publication of CN1271335C publication Critical patent/CN1271335C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Rotary Pumps (AREA)
CN 01125049 2000-07-31 2001-07-30 泵装置 Expired - Fee Related CN1271335C (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP231082/2000 2000-07-31
JP231082/00 2000-07-31
JP2000231082A JP4011837B2 (ja) 2000-07-31 2000-07-31 ポンプ装置

Publications (2)

Publication Number Publication Date
CN1336491A CN1336491A (zh) 2002-02-20
CN1271335C true CN1271335C (zh) 2006-08-23

Family

ID=18723956

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01125049 Expired - Fee Related CN1271335C (zh) 2000-07-31 2001-07-30 泵装置

Country Status (3)

Country Link
JP (1) JP4011837B2 (enExample)
CN (1) CN1271335C (enExample)
HK (1) HK1044361B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5024750B2 (ja) * 2006-08-20 2012-09-12 秀隆 渡辺 ロータリー式熱流体機器
JP5695995B2 (ja) * 2011-07-25 2015-04-08 株式会社神戸製鋼所 ギアポンプ
US10590928B2 (en) * 2017-11-28 2020-03-17 GM Global Technology Operations LLC Gear pump that removes air from pumped oil
CN109737052B (zh) * 2018-12-14 2020-04-17 中国石油化工股份有限公司 一种齿轮泵
JP7572904B2 (ja) * 2021-04-26 2024-10-24 川崎重工業株式会社 パラレルポンプ
CN115030894B (zh) * 2022-07-20 2024-05-17 无锡博兴瑞科技有限公司 一种防止卡死的齿轮泵
KR102722010B1 (ko) * 2023-05-18 2024-10-25 유림공업 주식회사 기어오일펌프의 캐비테이션 방지구조

Also Published As

Publication number Publication date
CN1336491A (zh) 2002-02-20
HK1044361B (zh) 2007-02-09
JP4011837B2 (ja) 2007-11-21
JP2002048076A (ja) 2002-02-15
HK1044361A1 (en) 2002-10-18

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Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: NIDEC SANKYO CORP.

Free format text: FORMER NAME OR ADDRESS: SANKYO SEIKI MFG. SEISAKUSHO K.K.

CP01 Change in the name or title of a patent holder

Address after: Nagano

Patentee after: Sankyo Seiki Seisakusho KK

Address before: Nagano

Patentee before: Sankyo Seiki Manufacturing Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060823

Termination date: 20160730