公开(公告)号：US10371101B2

公开(公告)日：2019-08-06

申请号：US15372617

申请日：2016-12-08

Applicant: Progress Rail Locomotive Inc.

Inventor： Rakesh R. Malhotra

IPC: F02M21/02 ,  F02M29/06

Abstract: A liquid-gas separation unit of a dual-fuel engine is provided. The liquid-gas separation unit includes an exhaust conduit and a separator mounted on the exhaust conduit. The exhaust conduit has a first end and a second end distal to the first end. The first end of the exhaust conduit is coupled to a gaseous fuel supply conduit of the dual-fuel engine for receiving a leaked liquid fuel and a gaseous fuel. The leaked liquid fuel is received from at least one injector of the dual-fuel engine. Further, the separator is adapted to separate the leaked liquid fuel from the gaseous fuel before ejecting the gaseous fuel through the second end of the exhaust conduit.

公开(公告)号：US10197016B2

公开(公告)日：2019-02-05

申请号：US15372550

申请日：2016-12-08

Applicant: Progress Rail Locomotive Inc.

Inventor： Rakesh R. Malhotra

IPC: F02M21/02 ,  F16K31/124 ,  F02D19/02 ,  F02B43/12

Abstract: A valve assembly of a fuel supply system includes a first body defining a first bore, an inlet port to receive fuel into the first bore, and an outlet port. The valve assembly further includes a pneumatic chamber disposed in fluid communication with the first bore. The valve assembly further includes a first piston to move between a first position and a second position. The first piston restricts and allows flow of fuel from the inlet port to the outlet port, in the first position and the second position, respectively. The valve assembly further includes a vent passage located upstream of the pneumatic chamber and configured to receive fuel leaked from a flow path defined between the inlet port and the outlet port. The valve assembly also includes a check valve disposed in the vent passage and configured to selectively vent the fuel entering the vent passage.