PROSOFT 5304-MBP-PDPM 模擬量輸入卡
允許動(dòng)力活塞下的機(jī)油流向油底殼。動(dòng)力油缸頂部的油壓迫使動(dòng)力活塞下降到零燃油位置。如果正確調(diào)整了與發(fā)動(dòng)機(jī)的連桿，發(fā)動(dòng)機(jī)將關(guān)閉。5304-MBP-PDPM，以更好地了解UG杠桿調(diào)速器的操作。本原理圖為基本設(shè)計(jì)，不包括任何輔助設(shè)備。本說(shuō)明基于負(fù)荷變化引起的速度變化。但是，如果通過(guò)重新定位速度控制連桿來(lái)更改調(diào)速器速度設(shè)置，則會(huì)發(fā)生相同的調(diào)速器移動(dòng)順序。負(fù)載降低假設(shè)原動(dòng)機(jī)以一定速度運(yùn)行。5304-MBP-PDPM飛錘處于垂直位置，用于正常穩(wěn)態(tài)操作。先導(dǎo)閥柱塞（14）的控制平臺(tái)位于旋轉(zhuǎn)襯套（15）的控制端口的中心。這會(huì)阻止壓力油流過(guò)襯套（15）控制端口。因此，動(dòng)力活塞（7）和調(diào)速器輸出軸（6）都不會(huì)移動(dòng)。
如果轉(zhuǎn)速下降小于50 rpm，調(diào)速器顯示下降小于3.5%。當(dāng)調(diào)速器輸出軸（5）移動(dòng)以增加燃油時(shí)，轉(zhuǎn)速設(shè)定值彈簧壓縮減小，從而降低調(diào)速器轉(zhuǎn)速設(shè)定值。當(dāng)施加負(fù)載時(shí)，機(jī)組開始減速。當(dāng)調(diào)速器輸出軸（5）移動(dòng)以減少燃油時(shí)，轉(zhuǎn)速設(shè)定彈簧壓縮增加，從而增加調(diào)速器轉(zhuǎn)速設(shè)定。隨著負(fù)載的降低，機(jī)組開始提高速度。當(dāng)負(fù)載增加或減少時(shí)，調(diào)速器速度設(shè)置的這種變化有助于調(diào)速器在機(jī)組與其他機(jī)組機(jī)械連接時(shí)抵抗負(fù)載變化。速降組件（圖3-2）由速降桿組件、速降凸輪和速降連桿組件組成，設(shè)置后，當(dāng)調(diào)速器輸出軸旋轉(zhuǎn)時(shí)，速降連桿會(huì)改變速度設(shè)定彈簧的壓縮。有關(guān)可選降速組件的圖示零件和零件參考號(hào)，請(qǐng)參見圖6-1.如果希望從節(jié)氣門位置關(guān)閉發(fā)動(dòng)機(jī)，5304-MBP-PDPM杠桿調(diào)速器可以配備一個(gè)停機(jī)桿（5304-MBP-PDPM），操作如下：當(dāng)節(jié)氣門朝著停機(jī)位置移動(dòng)時(shí)，加速塞上升，接觸停機(jī)桿上的螺母。進(jìn)一步移動(dòng)會(huì)提升停機(jī)桿、提升調(diào)速器桿和浮動(dòng)桿的內(nèi)端，從而提升先導(dǎo)閥柱塞并打開先導(dǎo)閥襯套中的控制端口。
If the linkage to engine is correctly adjusted, the engine will shut down.efer to Figure 3-1 with the text to better understand the operation of the UG Lever governor. This schematic diagram is of a basic design and does not include any auxiliary equipment. This description is based on speed changes resulting from load changes. However, the same sequence of governor movements would occur if the governor speed setting were changed by repositioning the speed control linkage. Decrease in Load Assume the prime mover is running on-speed. The flyweights are in a vertical position for normal steady-state operation. The control land of the pilot valve plunger (14) is centered over the control port of the rotating bushing (5304-MBP-PDPM). This stops the flow of pressure oil through the bushing (15) control port. As a result, there is no movement of the power piston (7) and no movement of the governor output shaft (6).
The speed droop assembly (Figure 3-2) consists of a speed droop lever assembly, a speed droop cam, and a speed droop link assembly which, when set, changes the compression of the speed setting spring as the governor output shaft rotates. For illustrated parts and part reference numbers of the optional speed droop assembly, see Figure 6-1.If it is desired that the engine be shut down from the throttle position, the UG Lever governor can be equipped with a shutdown rod (Figure 3-3) operating as follows: When the throttle is moved toward the shutdown position, the speeder plug rises, contacting the nut on the shutdown rod. Further movement lifts the shutdown rod, lifting speeder rod and inner end of floating lever, thus raising the pilot valve plunger and uncovering the control port in the pilot valve bushing. This permits oil under the power piston to flow to sump. Oil pressure on top of the power cylinder forces the power piston down to the zero fuel position.
lf the decrease in speed is less than 50 rpm, droop less than 3.5% is shown by the governor. As the governor output shaft (5) moves to increase fuel, the speed setting spring compression is reduced, which reduces the governor speed setting. The unit starts reducing its speed as load is applied. When the governor output shaft (5) moves to decrease fuel, the speed setting spring compression is increased, which increases the governor speed setting. The unit starts increasing its speed as load is decreased. This change of governor speed setting when load is increased or decreased helps the governor resist a load change when the unit is connected mechanically with other units.