公开(公告)号：US12018681B1

公开(公告)日：2024-06-25

申请号：US18197743

申请日：2023-05-16

申请人： Raymond Zhou Shaw ,  Guichun Zhang

发明人： Raymond Zhou Shaw ,  Guichun Zhang

IPC分类号： F04C15/00 ,  F04C2/12 ,  F04C13/00 ,  F04C18/12 ,  F04C18/14 ,  F04C25/02 ,  F04C29/04 ,  F28D1/04 ,  F28D1/047

CPC分类号： F04C15/0096 ,  F04C2/126 ,  F04C13/00 ,  F04C18/126 ,  F04C18/14 ,  F04C25/02 ,  F04C29/04 ,  F28D1/04 ,  F28D1/047

摘要： An oil box device of a roots vacuum pump with a crossed cooling water tube set includes an oil box; two root vacuum pump transfer gears placed within the oil box; each gear being axially connected to a respective one of shafts of rotors of a roots vacuum pump; one shaft of the rotors being driven by another one shaft of the rotors; a multiple channel crossed cooling water tube set enclosing the two roots vacuum pump gears; two distal ends of the water tube set being crossed over one another; two water boxes installed at two ends of the water tube set; after assembly, the water tube set enclosing the two gears and two ends of the water tube set being crossed over each other at a lateral side of the two gears; and two joints being installed at a bottom side of the rear cover.