水泵冷卻系統(tǒng)說明

A water pump is an important part of the engine cooling system.水泵是發(fā)動(dòng)機(jī)冷卻系統(tǒng)的重要組成部分甫蹄。

It provides circulation of the engine coolant (antifreeze) through the cooling system (see the top picture).它提供了發(fā)動(dòng)機(jī)冷卻水通過冷卻系統(tǒng)（防凍液）循環(huán)（見圖片上方）孙悦。
A water pump pushes the coolant through the passages (water jackets) in the engine cylinder block and cylinder head and then out into the radiator.

一臺(tái)水泵推通過在發(fā)動(dòng)機(jī)缸體保屯，缸蓋的通道（水套），冷卻液蟋定，然后將散熱器了牡科。 This helps to keep the engine from overheating; the hot coolant passes through the radiator where it cools down and then returns back to the engine.

這有助于防止過熱的引擎枯誓，冷卻液通過熱散熱器在那里冷卻下來号嵌，然后返回到發(fā)動(dòng)機(jī)的通行證。

A water pump is usually driven by the engine through the drive belt.

一臺(tái)水泵通常是由發(fā)動(dòng)機(jī)驅(qū)動(dòng)访跛，通過傳動(dòng)皮帶捣雪。 Sometimes it's driven by a timing belt.有時(shí)它的驅(qū)動(dòng)下同步帶。

A water pump consists of the housing with the shaft rotating on the bearing pressed inside.一臺(tái)水泵組成的上壓與軸軸承旋轉(zhuǎn)房屋內(nèi)秩漾。
At the outer side there is a pulley mounted on the shaft.在外側(cè)有一個(gè)滑輪安裝在軸上延懂。

At the inner side there is a seal to keep the coolant from leaking out and the impeller that acts like a centrifugal pump (see the lower picture).在內(nèi)側(cè)有一個(gè)密封，防止泄漏出來冯峭，像一個(gè)葉輪離心泵行為（參見下圖）的冷卻液昵壁。

Water pump problems

水泵的問題
Typical water pump problems include coolant leaks, noisy or defective bearing, damaged or corroded impeller.典型的問題包括冷卻水泵漏水，噪音或有缺陷的軸承谁汤，葉輪損壞或銹蝕坠地。
Faulty water pump might cause the engine to overheat, which can result in serious engine damage.水泵故障可能導(dǎo)致引擎過熱，從而導(dǎo)致發(fā)動(dòng)機(jī)嚴(yán)重?fù)p壞殉俗。 If defective, a water pump is replaced as a unit.如果出現(xiàn)問題圾纤，一臺(tái)水泵被替換為一個(gè)單元。

Is it worth to replace a water pump when a timing belt is being replaced?是否值得更換水泵同步帶時(shí)倦逐，被更換譬正？
Sometimes you might be suggested to replace the water pump at the same time the timing belt is being replaced.有時(shí)你可以建議，以取代在同一時(shí)間同步帶被替換水泵檬姥。 In cases when a water pump is driven by a timing belt it's worth to do because it involves very little extra labor, plus, a water pump is subject to wear anyway.在當(dāng)一臺(tái)水泵由同步帶是值得做的曾我，因?yàn)樗�涉及非常少的額外勞動(dòng)，加上帶動(dòng)的情況下健民，一臺(tái)水泵反正是受磨損抒巢。 As long as the original parts are being used, I'd recommend to go for it.只要正在使用原廠配件，我建議你去了秉犹。

信息來源：http://www.cbhrck.com