JPH0362262U - - Google Patents

Info

Publication number
JPH0362262U
JPH0362262U JP1989123217U JP12321789U JPH0362262U JP H0362262 U JPH0362262 U JP H0362262U JP 1989123217 U JP1989123217 U JP 1989123217U JP 12321789 U JP12321789 U JP 12321789U JP H0362262 U JPH0362262 U JP H0362262U
Authority
JP
Japan
Prior art keywords
circuit
type transmission
charge pump
reverse
hydraulic
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
Application number
JP1989123217U
Other languages
Japanese (ja)
Other versions
JPH071545Y2 (en
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 filed Critical
Priority to JP1989123217U priority Critical patent/JPH071545Y2/en
Publication of JPH0362262U publication Critical patent/JPH0362262U/ja
Application granted granted Critical
Publication of JPH071545Y2 publication Critical patent/JPH071545Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

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

第１図は本考案のＨＳＴ式変速装置の油圧回路
図、第２図は変速レバー７の操作角度を示す図面
、第３図は本考案のＨＳＴ式変速装置の斜板角度
と吐出圧の関係を示す図面、第４図は本考案のＨ
ＳＴ式変速装置の斜板角度と油圧モータ２の回転
数を示す図面、第５図は従来技術の変速レバー７
の操作角度を示す図面、第６図は従来技術におけ
る斜板角度と油圧ポンプの吐出圧の関係を示す図
面である。 １……油圧ポンプ、２……油圧モータ、３……
閉回路、３ａ……前進側回路、３ｂ……後進側回
路、４……チヤージポンプ、４ａ……吐出側回路
、５……オリフイス、５ａ……絞り回路。 Fig. 1 is a hydraulic circuit diagram of the HST type transmission of the present invention, Fig. 2 is a drawing showing the operating angle of the shift lever 7, and Fig. 3 is the relationship between the swash plate angle and discharge pressure of the HST type transmission of the present invention. Figure 4 shows the H of the present invention.
A drawing showing the swash plate angle and the rotation speed of the hydraulic motor 2 of the ST type transmission, FIG. 5 shows the speed change lever 7 of the prior art.
FIG. 6 is a drawing showing the relationship between the swash plate angle and the discharge pressure of the hydraulic pump in the prior art. 1...Hydraulic pump, 2...Hydraulic motor, 3...
Closed circuit, 3a...forward side circuit, 3b...reverse side circuit, 4...charge pump, 4a...discharge side circuit, 5...orifice, 5a...throttle circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 油圧ポンプ１と油圧モータ２とを接続する前進
側回路３ａと後進側回路３ｂよりなる閉回路３と
、該閉回路３にチヤージポンプ４からの流体を補
充する補充回路６ａ，６ｂとを備えたＨＳＴ式変
速装置において、後進側回路３ｂとチヤージポン
プ４の吐出側回路４ａをオリフイス５を介装した
絞り回路５ａにより連通したことを特徴とするＨ
ＳＴ式変速装置。 An HST comprising a closed circuit 3 consisting of a forward circuit 3a and a reverse circuit 3b that connect a hydraulic pump 1 and a hydraulic motor 2, and replenishment circuits 6a and 6b that replenish the closed circuit 3 with fluid from a charge pump 4. H type transmission, characterized in that the reverse side circuit 3b and the discharge side circuit 4a of the charge pump 4 are communicated through a throttle circuit 5a with an orifice 5 interposed therebetween.
ST type transmission.
JP1989123217U 1989-10-21 1989-10-21 HST type transmission Expired - Lifetime JPH071545Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989123217U JPH071545Y2 (en) 1989-10-21 1989-10-21 HST type transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989123217U JPH071545Y2 (en) 1989-10-21 1989-10-21 HST type transmission

Publications (2)

Publication Number Publication Date
JPH0362262U true JPH0362262U (en) 1991-06-18
JPH071545Y2 JPH071545Y2 (en) 1995-01-18

Family

ID=31671206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989123217U Expired - Lifetime JPH071545Y2 (en) 1989-10-21 1989-10-21 HST type transmission

Country Status (1)

Country Link
JP (1) JPH071545Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010053953A (en) * 2008-08-28 2010-03-11 Kubota Corp Working vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144345A (en) * 1981-03-02 1982-09-06 Hitachi Constr Mach Co Ltd Pump control type oil-pressure closed circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144345A (en) * 1981-03-02 1982-09-06 Hitachi Constr Mach Co Ltd Pump control type oil-pressure closed circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010053953A (en) * 2008-08-28 2010-03-11 Kubota Corp Working vehicle

Also Published As

Publication number Publication date
JPH071545Y2 (en) 1995-01-18

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