活塞環(huán)在使用中易出現(xiàn)嚴(yán)重磨損彈力減弱，內(nèi)部結(jié)膠及折斷等故障。活塞環(huán)在長期的使用過程中，受到高溫高壓和往復(fù)運(yùn)動(dòng)的影響，會(huì)出現(xiàn)磨損。當(dāng)磨損達(dá)到一定程度時(shí)，活塞環(huán)的彈力開始減退，端隙側(cè)隙和背隙也會(huì)逐漸增大，對(duì)燃燒室的密封作用會(huì)減弱。在活塞環(huán)的密封作用減弱后，柴油噴人燃燒室后就會(huì)出現(xiàn)燃燒不完全，燃燒室內(nèi)產(chǎn)生的高溫氣體會(huì)通過活塞環(huán)的間隙進(jìn)入曲軸箱，使活塞環(huán)內(nèi)積炭增多，密封作用的減弱，也造成了潤滑油上竄，使用的時(shí)間越長，活塞環(huán)內(nèi)部結(jié)膠就會(huì)越多?；钊h(huán)折斷一般是由于裝配方法不正確或活塞環(huán)被積炭卡死所造成。

The piston ring is prone to severe wear, weakened elasticity, internal bonding, and breakage during use. During long-term use, piston rings may experience wear due to the influence of high temperature, high pressure, and reciprocating motion. When the wear reaches a certain level, the elasticity of the piston ring begins to decrease, and the end gap, side gap, and back gap gradually increase, weakening the sealing effect on the combustion chamber. After the sealing effect of the piston ring weakens, incomplete combustion will occur when diesel is injected into the combustion chamber. The high-temperature gas generated in the combustion chamber will enter the crankcase through the gap of the piston ring, causing more carbon deposits in the piston ring. The weakening of the sealing effect also causes lubricating oil to flow up. The longer the use time, the more adhesive will accumulate inside the piston ring. A broken piston ring is usually caused by incorrect assembly methods or the piston ring being stuck by carbon deposits.

燃?xì)獍l(fā)電機(jī)

Gas generator

燃?xì)獍l(fā)電機(jī)活塞環(huán)開口間隙的確定

Determination of piston ring opening clearance in gas generators

活塞環(huán)裝人氣缸后，切口處必須保持一定的間隙，此間隙稱為活塞環(huán)的閉口間隙。若裝人氣缸后的間隙過小，活塞環(huán)會(huì)受氣缸內(nèi)高溫的影響而膨脹致使活塞環(huán)折斷；若裝人氣缸后的間隙過大，則會(huì)使活塞環(huán)出現(xiàn)嚴(yán)重漏氣，導(dǎo)致柴油機(jī)功率不足，并會(huì)引發(fā)一系列故障。因此，維修人員在裝配活塞環(huán)時(shí)一定要按柴油機(jī)維護(hù)說明書中的規(guī)定執(zhí)行。

After the piston ring is installed in the cylinder, a certain gap must be maintained at the incision, which is called the closed gap of the piston ring. If the gap after installation in the cylinder is too small, the piston ring will expand due to the high temperature inside the cylinder, causing the piston ring to break; If the gap after installing the cylinder is too large, it will cause serious air leakage in the piston rings, resulting in insufficient power of the diesel engine and causing a series of malfunctions. Therefore, maintenance personnel must follow the regulations in the diesel engine maintenance manual when assembling piston rings.

燃?xì)獍l(fā)電機(jī)活塞環(huán)損壞的故障現(xiàn)象及修理

Fault phenomenon and repair of damaged piston rings in gas generators

燃?xì)獍l(fā)電機(jī)在運(yùn)轉(zhuǎn)中排氣管冒黑煙藍(lán)煙，或潤滑油內(nèi)進(jìn)入柴油且功率急速下降時(shí)，一般可認(rèn)為是活塞環(huán)出現(xiàn)故障所致?；钊h(huán)價(jià)格較低，損壞后一般換用新件即可。

When the exhaust pipe of a gas generator emits black and blue smoke during operation, or when the lubricating oil enters diesel and the power drops rapidly, it can generally be considered as a failure of the piston ring. The price of piston rings is relatively low, and after damage, they are usually replaced with new parts.

燃?xì)獍l(fā)電機(jī)活塞環(huán)平裝進(jìn)氣缸套內(nèi)，接口處要有必然的開口間隙。

The piston ring of the gas generator should be installed flat into the cylinder liner, and there should be a certain opening gap at the interface.

（1容量的確定：按機(jī)組長期持續(xù)運(yùn)行輸出功率能滿足全工程計(jì)算負(fù)荷選擇，在環(huán)槽中，沿高度方向要有必然的邊間隙。超級(jí)豪華車的服務(wù)承諾是全球24小時(shí)到達(dá)（包括所需要配件，開口不要對(duì)著活塞頂部的渦流凹坑方向。

(1) Determination of capacity: According to the long-term continuous operation of the unit, the output power can meet the load selection of the entire engineering calculation. In the ring groove, there must be a certain edge gap along the height direction. The service commitment of the super luxury car is to arrive 24 hours a day worldwide (including required accessories, the opening should not face the direction of the vortex pit at the top of the piston).

（2臺(tái)數(shù)的確定：一般設(shè)置通常為2臺(tái)以上，倒角或切槽應(yīng)向上。

(Determination of the number of 2 units: Generally, there are more than 2 units, and the chamfer or groove should be facing upwards.).

安裝組合環(huán)時(shí)，以保證供電的連續(xù)性及適應(yīng)用電負(fù)荷曲線的變化，再裝扁平環(huán)和波形環(huán)。波形環(huán)上邊裝兩片扁平環(huán)，才可以根據(jù)用電負(fù)荷的變化確定投入發(fā)電機(jī)組的進(jìn)行臺(tái)數(shù)，開口應(yīng)相互錯(cuò)開。

When installing the combination ring, to ensure the continuity of power supply and adapt to changes in the electricity load curve, then install the flat ring and waveform ring. Two flat rings are installed on top of the waveform ring to determine the number of units to be put into the generator set based on changes in electricity load, and the openings should be staggered from each other.

各活塞環(huán)開口在互相錯(cuò)開120℃，并應(yīng)根據(jù)負(fù)荷的重要性確定發(fā)電機(jī)組備用機(jī)組容量，

The openings of each piston ring should be staggered by 120 ℃ from each other, and the standby capacity of the generator set should be determined based on the importance of the load,

錐形斷面活塞環(huán)，安裝時(shí)錐面應(yīng)向上。

The conical section piston ring should be installed with the conical surface facing upwards.