JPH025653Y2 - - Google Patents
Info
- Publication number
- JPH025653Y2 JPH025653Y2 JP1980191550U JP19155080U JPH025653Y2 JP H025653 Y2 JPH025653 Y2 JP H025653Y2 JP 1980191550 U JP1980191550 U JP 1980191550U JP 19155080 U JP19155080 U JP 19155080U JP H025653 Y2 JPH025653 Y2 JP H025653Y2
- Authority
- JP
- Japan
- Prior art keywords
- generator
- load
- internal combustion
- combustion engine
- generators
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 20
- 239000000446 fuel Substances 0.000 description 11
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
【考案の詳細な説明】
本考案は、内燃機関によつて駆動される発電機
に関し、特に定格回転数の異なる２以上の交流発
電機を同軸一体に構成して内燃機関に直結し、負
荷に応じて発電機を使い分け、最も経済的な燃料
消費量で、内燃機関を運転せんとするものであ
る。[Detailed description of the invention] The present invention relates to a generator driven by an internal combustion engine, and in particular, two or more alternating current generators with different rated rotational speeds are coaxially integrated, are directly connected to the internal combustion engine, and are connected to a load. The idea is to use different generators to operate the internal combustion engine with the most economical fuel consumption.
内燃機関によつて駆動される発電機は、従来１
つの発電機を内燃機関で駆動しているので、負荷
が変動しても回転数は変えずに運転する必要があ
つた。例えば、定格出力100KVA，4P
（1800rpm）のデイーゼル発電機セツトで、負荷
が40KVAになつても、30KVAに下つてもそのま
ま使用するか、低負荷が明らかに長時間持続する
場合には、もう１台の低負荷用発電機セツトを併
設して使用している。 Generators driven by internal combustion engines are conventionally 1
Since two generators were driven by an internal combustion engine, it was necessary to operate the engine without changing the rotational speed even if the load varied. For example, rated output 100KVA, 4P
(1800rpm) diesel generator set that can be used even if the load reaches 40KVA or drops to 30KVA, or if the low load continues for an obviously long time, use another low load generator. It is also used with a set.
しかし、常時２台の発電機セツトを維持してい
くことは、スペース的にも、経済的にも無駄が多
く、一方、一台の発電機セツトで高負荷、低負荷
の両方に対応することは、低負荷長時間の運転に
よつて内燃機関の寿命を短いものにし、燃料消費
量も割高である。 However, maintaining two generator sets at all times is wasteful both in terms of space and economy, and on the other hand, it is difficult to handle both high and low loads with one generator set. This shortens the life of the internal combustion engine due to long hours of low-load operation, and fuel consumption is relatively high.
本考案は以上述べたような、従来の内燃機関駆
動による発電機セツトの不都合点の解消を目的と
するもので、定格回転数の異なる２以上の発電機
を同軸一体に構成すると共に該発電機軸を内燃機
関に直結し、かつ定格回転数の高い高負荷用発電
機と定格回転数の低い低負荷用発電機の各発電機
出力を切換スイツチにより切換えるように構成
し、負荷の軽重に応じて上記発電機を選択使用す
るようにしたことを特徴とする多速交流発電機を
提供するものである。 The present invention aims to eliminate the disadvantages of the conventional generator set driven by an internal combustion engine as described above. is directly connected to the internal combustion engine, and the generator output is switched between a high-load generator with a high rated rotation speed and a low-load generator with a low rated rotation speed using a changeover switch, depending on the lightness and weight of the load. The present invention provides a multi-speed alternating current generator characterized in that the generators described above are selectively used.
続いて、上記構成を具体化した実施例を、添付
した図面を参照しつつ詳しく説明する。ここで第
１図は本考案の一実施例である２速交流発電機の
側面図、第２図は同実施例の作用を示す線図であ
る。第１図において、内燃機関１と発電機ケース
２とは共通台床３上に設置されており、発電機ケ
ース２内には、例えば4Pの発電機５と6Pの発電
機６とが共通の軸７によつて同軸に、所謂串差し
状態で設けられて、軸７は、内燃機関１のクラン
ク軸と連結されている。 Next, an embodiment embodying the above configuration will be described in detail with reference to the attached drawings. Here, FIG. 1 is a side view of a two-speed alternating current generator which is an embodiment of the present invention, and FIG. 2 is a diagram showing the operation of the embodiment. In FIG. 1, an internal combustion engine 1 and a generator case 2 are installed on a common platform 3, and in the generator case 2, for example, a 4P generator 5 and a 6P generator 6 are installed on a common platform 3. The shaft 7 is provided coaxially in a so-called skewed manner, and the shaft 7 is connected to the crankshaft of the internal combustion engine 1 .
上記両発電機５，６の出力ケーブル８，９は、
切換スイツチ１０に接続されており、切換スイツ
チ１０と負荷との間には負荷の入力電流を計測す
る電流計Ａが介在している。そして、この電流計
Ａは、負荷電流が、予め定めた一定電流値になつ
たとき、切換スイツチ１０を切換えるコイルＣを
作動させる作動器１１と接続されている。 The output cables 8, 9 of both the generators 5, 6 are as follows:
It is connected to the changeover switch 10, and an ammeter A that measures the input current of the load is interposed between the changeover switch 10 and the load. This ammeter A is connected to an actuator 11 that operates a coil C that switches the changeover switch 10 when the load current reaches a predetermined constant current value.
このような発電機における負荷と、内燃機関の
燃料消費量との関係を示したものが第２図であ
り、曲線１が、4P，1800rpmの高負荷用発電機
５におけるもので、曲線ｍが6P，1200rpmの低
負荷用発電機６におけるものである。第２図にお
いて、横軸に示す内燃機関１の出力、即ち馬力ps
は、内燃機関１のシリンダ内圧力をｐとし、ピス
トン速度をＶとするとき、PS＝P.Vとなる。し
たがつて、出力、即ち馬力PSを一定とすると、
第２図の実施例では、
Ｖ→1.800rpm＞1.200rpm
Ｐ→1.800rpm＞1.200rpm
となり、Ｖ、即ちピストン速度が速く、回転数の
高い方が回転抵抗も大であり、ロスも多く、した
がつて回転数の高い方が燃料を冗費し燃費も多く
なる。なお、夫々の定格時に、使用頻度が最も多
いところであり、したがつて、このときに内燃機
関１の性能（燃費等）が最良の条件になるように
マツチングさせている。このことは、即ち定格回
転以外の部分では当然ながら定格回転域よりも燃
費が嵩み悪くなる。従つて曲線１上の点Ｐが発電
機５の定格状態を示しており、負荷が低下するに
伴つて燃料消費量が増大する。一方発電機６につ
いても点Ｑがその定格負荷を表わし、これより負
荷が低下すると燃費は増大する。よつて点Ｐより
負荷が大きい場合は、発電器５を使用した方が経
済的であり、点Ｑより負荷が少ないときは発電機
６を用いた方が経済的である。従つて、作動器１
１がコイルＣを作動させる境界電流値を、例えば
点Ｒに相当するあたりに定めておけば燃料消費量
と機関の損傷度を勘案して、最も有利な点で発電
機５，６を切換えることができる。 Figure 2 shows the relationship between the load in such a generator and the fuel consumption of the internal combustion engine, where curve 1 is for high-load generator 5 with 4P and 1800 rpm, and curve m is for high-load generator 5 of 4P, 1800 rpm. This is for low load generator 6 with 6P and 1200 rpm. In Fig. 2, the output of the internal combustion engine 1 shown on the horizontal axis, that is, the horsepower ps
When the cylinder pressure of the internal combustion engine 1 is p and the piston speed is V, PS=PV. Therefore, if the output, i.e. horsepower PS, is constant,
In the example shown in Fig. 2, V → 1.800rpm > 1.200rpm P → 1.800rpm > 1.200rpm, and V, that is, the piston speed is faster and the rotational speed is higher, the rotational resistance is larger, the loss is larger, and the The higher the rotation speed, the more fuel is used and the fuel consumption increases. It should be noted that at the time of each rating, the frequency of use is the highest, and therefore, the performance (fuel efficiency, etc.) of the internal combustion engine 1 is matched to the best conditions at this time. This means that, of course, the fuel consumption at parts other than the rated rotation becomes higher and worse than in the rated rotation range. Therefore, point P on curve 1 indicates the rated state of generator 5, and fuel consumption increases as the load decreases. On the other hand, point Q represents the rated load of the generator 6, and as the load decreases below this point, the fuel consumption increases. Therefore, when the load is greater than point P, it is more economical to use the generator 5, and when the load is less than point Q, it is more economical to use the generator 6. Therefore, actuator 1
If the boundary current value at which 1 operates the coil C is determined, for example, at a point corresponding to point R, the generators 5 and 6 can be switched at the most advantageous point, taking into consideration fuel consumption and the degree of damage to the engine. Can be done.
この実施例では、4Pと6Pの２つの交流発電機
を一体化したものを示したが、必要に応じて3P
その他の交流発電機を組合わせた多速交流発電機
となすことも可能である。 This example shows an integrated alternator with two 4P and 6P alternators, but 3P and 6P alternators can be used as needed.
It is also possible to create a multi-speed alternator by combining other alternators.
以上述べた如く本考案にあつては、定格回転数
の異なる２以上の発電機を同軸一体に構成成する
と共に該発電機軸を内燃機関に直結し、かつ定格
回転数の高い高負荷用発電機と定格回転数の低い
低負荷用発電機の各発電機出力を切換スイツチに
より切換えるように構成し、負荷の軽重に応じて
上記各発電機を選択使用するようにしたものであ
り、従つてこれを駆動する内燃機関の燃料消費量
が減少し経済的であると共に、内燃機関の寿命に
悪影響を及ぼすことが少なく、しかも低負荷時に
は極数を上げて機関回転数の低下を図りうるか
ら、騒音、振動の面で有利となる。更に、機関と
発電機をフル装備した発電機セツトを複数個常設
する必要がないから、極めて経済的で、また、２
以上の交流発電機を、同軸一体、即ち内燃機関の
クランク軸と連結された共通の軸に所謂、串刺し
状に配置することにより据付けスペースの点でも
有利であり、船用補機等のように、負荷が長期に
わたつて大きく変動する発電機に用いて好適であ
る。 As described above, in the present invention, two or more generators with different rated rotational speeds are coaxially integrated, and the generator shaft is directly connected to an internal combustion engine, and a high-load generator with a high rated rotational speed is used. The output of each of the low-load generators with a low rated rotation speed is configured to be switched by a changeover switch, and each of the above generators is selectively used depending on the lightness and weight of the load. It is economical because the fuel consumption of the internal combustion engine that drives the engine is reduced, and it has little negative effect on the life of the internal combustion engine.Furthermore, at low loads, the number of poles can be increased to reduce the engine speed, which reduces noise. , which is advantageous in terms of vibration. Furthermore, since there is no need to permanently install multiple generator sets fully equipped with engines and generators, it is extremely economical and has two
By arranging the above-mentioned alternating current generator on a coaxial unit, that is, on a common shaft connected to the crankshaft of the internal combustion engine in a so-called skewer shape, it is advantageous in terms of installation space, and it can be used as an auxiliary machine for ships. It is suitable for use in generators whose load fluctuates significantly over a long period of time.
第１図は本考案の一実施例である２速交流発電
機の側面図、第２図は同実施例の作用を示す線図
である。
１……内燃機関、５，６……発電機、７……発
電機軸、１０……切換スイツチ。
FIG. 1 is a side view of a two-speed alternating current generator which is an embodiment of the present invention, and FIG. 2 is a diagram showing the operation of the embodiment. 1... Internal combustion engine, 5, 6... Generator, 7... Generator shaft, 10... Changeover switch.
Claims (1)
に構成すると共に該発電機軸を内燃機関に直結
し、かつ定格回転数の高い高負荷用発電機と定格
回転数の低い低負荷用発電機の各発電機出力を切
換スイツチにより切換えるように構成し、負荷の
軽重に応じて上記各発電機を選択使用するように
したことを特徴とする多速交流発電機。 Two or more generators with different rated rotation speeds are coaxially integrated, and the generator shaft is directly connected to an internal combustion engine, and a high-load generator with a high rated rotation speed and a low-load generator with a low rated rotation speed are combined. A multi-speed alternating current generator characterized in that the output of each generator is changed over by a changeover switch, and each of the generators is selectively used according to the lightness and weight of the load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980191550U JPH025653Y2 (en) | 1980-12-26 | 1980-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980191550U JPH025653Y2 (en) | 1980-12-26 | 1980-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57111079U JPS57111079U (en) | 1982-07-09 |
| JPH025653Y2 true JPH025653Y2 (en) | 1990-02-09 |
Family
ID=29995986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980191550U Expired JPH025653Y2 (en) | 1980-12-26 | 1980-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH025653Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4030490Y1 (en) * | 1964-03-23 | 1965-10-25 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50154830U (en) * | 1974-06-10 | 1975-12-22 | ||
| JPS5615903Y2 (en) * | 1977-04-01 | 1981-04-14 |
-
1980
- 1980-12-26 JP JP1980191550U patent/JPH025653Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4030490Y1 (en) * | 1964-03-23 | 1965-10-25 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57111079U (en) | 1982-07-09 |
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