JPS5840586U - screw pump - Google Patents

screw pump

Info

Publication number
JPS5840586U
JPS5840586U JP13447081U JP13447081U JPS5840586U JP S5840586 U JPS5840586 U JP S5840586U JP 13447081 U JP13447081 U JP 13447081U JP 13447081 U JP13447081 U JP 13447081U JP S5840586 U JPS5840586 U JP S5840586U
Authority
JP
Japan
Prior art keywords
circumferential surface
shaft end
balance chamber
recess
hydraulic balance
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
Application number
JP13447081U
Other languages
Japanese (ja)
Inventor
薗田　顕和
下村　惇
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.)
Kawasaki Motors Ltd
Original Assignee
Kawasaki Jukogyo KK
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 Kawasaki Jukogyo KK filed Critical Kawasaki Jukogyo KK
Priority to JP13447081U priority Critical patent/JPS5840586U/en
Publication of JPS5840586U publication Critical patent/JPS5840586U/en
Pending legal-status Critical Current

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  • Rotary Pumps (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来装置としてのねじポンプの断面図、第２図
は本案装置としてのポンプの要部の拡大断面図である。 １・・・・・・主ロータ、２・・・・・・アイドラロー
タ、２ａ・・・・・・端部、３・・・・・・バランス圧
導通孔、４，７・・・・・・ブツシュ、６．９・・・・
・・リヤカバー、７ａ・・・・・・つば、８．１１・・
・・・・すきま、１０・・・・・・軸受部、１２・・・
・・・バランス室。FIG. 1 is a sectional view of a screw pump as a conventional device, and FIG. 2 is an enlarged sectional view of the main parts of the pump as the proposed device. 1... Main rotor, 2... Idler rotor, 2a... End, 3... Balance pressure communication hole, 4, 7...・Butshu, 6.9...
...Rear cover, 7a...Brim, 8.11...
...Gap, 10...Bearing part, 12...
...Balance room.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 外周にねじを有する主ロータと、このねじに噛合う一対
のアイドラローラと、アイドラロータの吸入側軸端部と
リヤカバーとの間に形成された油圧バランス室と、該油
圧バランス室と吐出側通路とを連通ずるためにアイドラ
ロータに軸心方向に穿設した貫通孔とを有するねじポン
プにおいて、前記油圧バランス室が、リヤカバーの内側
面に設けた円筒状の凹みと、この凹みに挿嵌されたアイ
ドラロータの吸入側軸端部、およびこの軸端部外周面と
前記凹みの内周面との間に介装されたブツシュとによっ
て形成されるようにするとともに、前記軸端部の外周面
とブツシュの内周面、およびブツシュの外周面と前記凹
みの内周面との間にそれぞれ直径の□。。。以上ｉｏｏ
以下の直径すきまを設けたことを特徴とするねじポンプ
。A main rotor having a thread on its outer periphery, a pair of idler rollers meshing with the thread, a hydraulic balance chamber formed between the suction side shaft end of the idler rotor and the rear cover, and the hydraulic balance chamber and the discharge side passage. In the screw pump, the hydraulic balance chamber has a cylindrical recess provided on the inner surface of the rear cover, and the hydraulic balance chamber is inserted into the recess. the suction side shaft end of the idler rotor, and a bushing interposed between the outer circumferential surface of this shaft end and the inner circumferential surface of the recess, and the outer circumferential surface of the shaft end. and the inner circumferential surface of the bushing, and the diameter □ between the outer circumferential surface of the bushing and the inner circumferential surface of the recess, respectively. . . More than ioo
A screw pump characterized by having the following diameter clearance.
JP13447081U 1981-09-09 1981-09-09 screw pump Pending JPS5840586U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13447081U JPS5840586U (en) 1981-09-09 1981-09-09 screw pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13447081U JPS5840586U (en) 1981-09-09 1981-09-09 screw pump

Publications (1)

Publication Number Publication Date
JPS5840586U true JPS5840586U (en) 1983-03-17

Family

ID=29927897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13447081U Pending JPS5840586U (en) 1981-09-09 1981-09-09 screw pump

Country Status (1)

Country Link
JP (1) JPS5840586U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017036667A (en) * 2015-08-06 2017-02-16 株式会社日本自動車部品総合研究所 Screw pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS458036Y1 (en) * 1966-03-31 1970-04-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS458036Y1 (en) * 1966-03-31 1970-04-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017036667A (en) * 2015-08-06 2017-02-16 株式会社日本自動車部品総合研究所 Screw pump

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