JPS6241850U - - Google Patents
Info
- Publication number
- JPS6241850U JPS6241850U JP13307285U JP13307285U JPS6241850U JP S6241850 U JPS6241850 U JP S6241850U JP 13307285 U JP13307285 U JP 13307285U JP 13307285 U JP13307285 U JP 13307285U JP S6241850 U JPS6241850 U JP S6241850U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic pump
- prime mover
- power device
- variable displacement
- maximum rotational
- 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
Links
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000000446 fuel Substances 0.000 description 2
Landscapes
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
第１図は本考案の動力装置の一実施例を示す回
路図、第２図は第１図に示す実施例において設定
されるポンプ傾転角度と吐出圧力の関係を示す説
明図、第３図は第１図に示す実施例において得ら
れるポンプ吐出流量と吐出圧力の関係を示す説明
図、第４図は従来の動力装置の一例を示す回路図
、第５図は第４図に示す動力装置において得られ
るポンプ吐出流量と吐出圧力の関係を示す説明図
、第６図は第１図に示す実施例および第４図に示
す従来の動力装置において得られるエンジン回転
数とエンジントルク、燃料消費率の開係を示す説
明図である。
１……原動機（エンジン）、２，２′……可変
容量油圧ポンプ、３，３′……レギユレータ、４
……燃料レバー、５……最高回転数選定装置、６
……コントローラ、１３……選択スイツチ、２０
，２２，３０，３２……マツチング点、２３，２
５……エンジントルク特性線、２６，２８……燃
料消費率特性線、２９……馬力一定曲線、４０…
…特性線。
Fig. 1 is a circuit diagram showing one embodiment of the power device of the present invention, Fig. 2 is an explanatory diagram showing the relationship between the pump tilt angle and discharge pressure set in the embodiment shown in Fig. 1, and Fig. 3. is an explanatory diagram showing the relationship between pump discharge flow rate and discharge pressure obtained in the embodiment shown in FIG. 1, FIG. 4 is a circuit diagram showing an example of a conventional power plant, and FIG. 5 is a diagram showing the relationship between the pump discharge flow rate and discharge pressure obtained in the embodiment shown in FIG. FIG. 6 is an explanatory diagram showing the relationship between pump discharge flow rate and discharge pressure obtained in the example shown in FIG. 1 and the conventional power plant shown in FIG. 4. FIG. 1... Prime mover (engine), 2, 2'... Variable displacement hydraulic pump, 3, 3'... Regulator, 4
... Fuel lever, 5 ... Maximum rotation speed selection device, 6
... Controller, 13 ... Selection switch, 20
, 22, 30, 32... Matching point, 23, 2
5... Engine torque characteristic line, 26, 28... Fuel consumption rate characteristic line, 29... Constant horsepower curve, 40...
...Characteristic line.
Claims (1)
容量油圧ポンプとを備えた動力装置において、上
記原動機の複数の使用最高回転数のうちの小さい
最高回転数と、上記可変容量油圧ポンプの複数の
使用最大傾転角のうちの大きい最大傾転角とを対
応づけて設定する設定手段を備え、この設定手段
によつて設定された設定値に応じて選択的に上記
原動機を駆動し、上記可変容量油圧ポンプの吐出
量を制御することを特徴とする動力装置。 In a power device comprising a prime mover and a variable displacement hydraulic pump driven by the prime mover, a lower maximum rotational speed among a plurality of maximum rotational speeds of the prime mover and a plurality of uses of the variable displacement hydraulic pump. The motor is selectively driven according to the set value set by the setting means, and the variable capacity A power device characterized by controlling the discharge amount of a hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13307285U JPH0329559Y2 (en) | 1985-09-02 | 1985-09-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13307285U JPH0329559Y2 (en) | 1985-09-02 | 1985-09-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6241850U true JPS6241850U (en) | 1987-03-13 |
| JPH0329559Y2 JPH0329559Y2 (en) | 1991-06-24 |
Family
ID=31033050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13307285U Expired JPH0329559Y2 (en) | 1985-09-02 | 1985-09-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0329559Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988001349A1 (en) * | 1986-08-15 | 1988-02-25 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic pump control unit |
| JP2008190506A (en) * | 2007-02-07 | 2008-08-21 | Komatsu Ltd | Control device for engine and its control method |
-
1985
- 1985-09-02 JP JP13307285U patent/JPH0329559Y2/ja not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988001349A1 (en) * | 1986-08-15 | 1988-02-25 | Kabushiki Kaisha Komatsu Seisakusho | Hydraulic pump control unit |
| JP2008190506A (en) * | 2007-02-07 | 2008-08-21 | Komatsu Ltd | Control device for engine and its control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0329559Y2 (en) | 1991-06-24 |
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