公开(公告)号：US20180195479A1

公开(公告)日：2018-07-12

申请号：US15401702

申请日：2017-01-09

申请人： Caterpillar Inc.

发明人： Joshua T. Perko ,  Dana R. Coldren ,  Glenn B. Cox

IPC分类号： F02M59/44 ,  F02M21/02

CPC分类号： F02M59/44 ,  F02M21/0215 ,  F02M21/0221 ,  F02M21/0227 ,  Y02T10/32

摘要： A cryogenic LNG fuel system is provided that includes a tank for storing LNG and a LNG fill system including a LNG inlet passage for directing a flow of LNG into the tank. A cryogenic pump is in fluid communication with the tank and includes a pumping element at least partially immersed in the LNG for directing the LNG out of the tank and a seal. A lubricant system is provided that includes a lubricant reservoir and a lubricant inlet passage in communication with the lubricant reservoir and the LNG inlet passage. The lubricant system is adapted to introduce the lubricant into the flow of LNG in the LNG inlet passage such that at least a portion of the lubricant is entrained in the LNG in the LNG inlet passage and carried into the tank.

公开(公告)号：US10190556B2

公开(公告)日：2019-01-29

申请号：US15401702

申请日：2017-01-09

申请人： Caterpillar Inc.

发明人： Joshua T. Perko ,  Dana R. Coldren ,  Glenn B. Cox

IPC分类号： F02M59/44 ,  F02M21/02

摘要： A cryogenic LNG fuel system is provided that includes a tank for storing LNG and a LNG fill system including a LNG inlet passage for directing a flow of LNG into the tank. A cryogenic pump is in fluid communication with the tank and includes a pumping element at least partially immersed in the LNG for directing the LNG out of the tank and a seal. A lubricant system is provided that includes a lubricant reservoir and a lubricant inlet passage in communication with the lubricant reservoir and the LNG inlet passage. The lubricant system is adapted to introduce the lubricant into the flow of LNG in the LNG inlet passage such that at least a portion of the lubricant is entrained in the LNG in the LNG inlet passage and carried into the tank.