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在有些車(chē)型中設(shè)有冷啟動(dòng)噴油器,在冷啟動(dòng)時(shí)將混合氣加濃以改善冷啟動(dòng)性能。冷啟動(dòng)噴油器由啟動(dòng)開(kāi)關(guān)和熱敏時(shí)控開(kāi)關(guān)控制,噴油持續(xù)時(shí)間取決于熱敏時(shí)控開(kāi)關(guān)加熱線圈電流和冷卻水的溫度。
冷啟動(dòng)系統(tǒng)故障多表現(xiàn)為:冷啟動(dòng)噴油器被膠質(zhì)物堵塞,影響噴油霧化質(zhì)量,導(dǎo)致冷啟動(dòng)困難;冷啟動(dòng)噴油器失效不能正常工作;熱敏時(shí)控開(kāi)關(guān)短路(觸點(diǎn)常閉)或斷路(常開(kāi)),如果觸點(diǎn)常閉,則熱車(chē)時(shí)仍控制冷啟動(dòng)噴油器噴入過(guò)多燃油而導(dǎo)致熱啟動(dòng)困難,如果時(shí)控開(kāi)關(guān)短路,冷啟動(dòng)噴油器始終不能工作而導(dǎo)致冷啟動(dòng)困難。
德國(guó)KRACHT高壓齒輪泵主要型號(hào)如下:
KM1/6.3G3RDS0A4NL1/
KM1/6.3G3RDS0A4NL2/
KM1/6.3G3RDS0A4NM1/
KM1/6.3G3RDS0B4NM1/
KM1/6.3G3RDS0B4NM2/
KM1/6.3G3RDS0F4NL1/
KM1/6.3G3RDS0F4NL2/
KM1/6.3G3RDS0F4NM1/
KM1/6.3G3RDS0F4NM2/
KM1/6.3G3RDSXA4NL1/
KM1/6.3G3RDSXA4NM2/
KM1/6.3G3RDSXF4NM1/
KM1/6.3G3RDSXF4NM2/
KM1/6.3G3RDX0A4NL1/
KM1/6.3G3RDX0B4NL1/
KM1/6.3G3RDX0B4NL2/
KM1/6.3G3RDX0B4NM1/
KM1/6.3G3RDX0F4NM1/
KM1/6.3G3RDX0F4NM2/
KM1/6.3G3RDXXB4NL2/
KM1/6.3G3RDXXB4NM1/
KM1/6.3G3RDXXB4NM2/
KM1/6.3G3RDXXF4NL1/
KM1/6.3G3RJK0A4NL2/
KM1/6.3G3RJK0A4NM2/
KM1/6.3G3RJK0B4NM2/
KM1/6.3G3RJK0F4NL1/
KM1/6.3G3RJK0F4NL2/
KM1/6.3G3RJK0F4NM1/
KM1/6.3G3RJK0F4NM2/
KM1/6.3G3RJKXA4NL1/
KM1/6.3G3RJKXA4NL2/
KM1/6.3G3RJF0A4NL2/
KM1/6.3G3RJF0B4NL2/
KM1/6.3G3RJF0B4NM1/
KM1/6.3G3RJF0B4NM2/
KM1/6.3G3RJF0F4NL1/
KM1/6.3G3RJF0F4NL2/
KM1/6.3G3RJFXA4NL2/
KM1/6.3G3RJFXA4NM1/
KM1/6.3G3RJFXB4NL2/
KM1/6.3G3RJFXB4NM1/
KM1/6.3G3RJFXB4NM2/
KM1/6.3G3RJFXF4NL1/
KM1/6.3G3RJFXF4NL2/
KM1/6.3G3RJFXF4NM1/
KM1/6.3G3RJFXF4NM2/
由于壓力場(chǎng)對(duì)稱(chēng)分布,因此馬達(dá)既可順時(shí)針旋轉(zhuǎn),也可逆時(shí)針旋轉(zhuǎn)(可逆操作模式)
軸密封的壓力釋放通過(guò)卸荷口實(shí)現(xiàn),卸荷口可在端蓋找到|(請(qǐng)注意允許的zui大卸荷壓力),這樣可在出口端對(duì)馬達(dá)加壓,從而將幾個(gè)馬達(dá)串連在一起。
對(duì)于高速運(yùn)轉(zhuǎn),軸密封必須為FKM材料,如果有2個(gè)馬達(dá)耦合在一起并配有公用的供液管線,就能構(gòu)成一臺(tái)具有很高分流精度的流量分配器。
外部負(fù)載
作用于軸端的外部徑向或負(fù)載削弱了壓蓋軸承的功能。取決于負(fù)載的大小和方向,徑向負(fù)載可能被吸。“不”容許有軸向負(fù)載。
要承受外部負(fù)載,必須使用帶前置軸承的馬達(dá)類(lèi)型。新特性,根據(jù)需求可以選具有減少齒根面間隙的馬達(dá),這樣能減少波動(dòng)并可大大改善啟動(dòng)情況。
NBR旋轉(zhuǎn)軸唇形密封
FKM旋轉(zhuǎn)軸唇形密封
G法蘭,錐形軸端
G法蘭,漸開(kāi)線花鍵軸端
K法蘭,錐形軸端1:8
M法蘭,漸開(kāi)線花鍵軸端
Q法蘭,錐形軸端
L法蘭,平行平米軸端,不帶軸唇形密封
前置軸承L,G法蘭,錐形軸端 20mm
允許的負(fù)載-前置軸承L,錐形軸端
允許的負(fù)載-前置軸承P,錐形軸端
如需詳細(xì)了解請(qǐng)點(diǎn)擊:德國(guó)KRACHT馬達(dá)系列產(chǎn)品