公开(公告)号：US20200158017A1

公开(公告)日：2020-05-21

申请号：US16193038

申请日：2018-11-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alberto Lorenzo Vassallo ,  Gianmarco Boretto

IPC: F02C6/20 ,  F01N9/00 ,  F02C9/16 ,  F02C3/04 ,  F02C3/14 ,  F01N3/035 ,  F01N11/00 ,  B60K6/24

Abstract: A microturbine system for a vehicle and method of operating the microturbine system. The microturbine system is an automotive range extender that includes a generator to provide power to a battery pack of the vehicle. A compressor is operably coupled to the generator and a burner is operably coupled downstream of the compressor to burn fuel and heat compressed charge air from the compressor to form an exhaust. An aftertreatment device is operably coupled downstream of the burner to change a composition of the exhaust from the burner to form a treated exhaust. A turbine is operably coupled downstream of the aftertreatment device and operably coupled to the compressor. The turbine is configured such that a flow of the treated exhaust drives the turbine and the compressor to power the generator.

公开(公告)号：US20200095922A1

公开(公告)日：2020-03-26

申请号：US16139330

申请日：2018-09-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Alberto Lorenzo Vassallo ,  Francesco Concetto Pesce ,  Andrea Tripodi

IPC: F02B23/06

Abstract: A piston for a diesel engine includes a piston body having a skirt and crown. The piston body has portions defining an outer combustion bowl and an inner combustion bowl within the piston body through the crown. The outer combustion bowl has an upper annular side wall extending from the crown surface and an annular flat shelf extending from the upper annular side wall. The inner combustion bowl is recessed with respect to the annular flat shelf of the outer combustion bowl. The inner combustion bowl has a curved annular side wall and a plurality of protruding lips extending from the curved annular side wall toward a central axis of the piston body.