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Vehicle microturbine system and method of operating the same

A micro gas turbine, vehicle technology, applied in gas turbine installations, turbine/propulsion fuel delivery systems, charging systems, etc.

Inactive Publication Date: 2020-05-26
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typical microturbine architectures can result in undesirable hydrocarbon / CO emissions, solids emissions and / or odors during warming

Method used

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  • Vehicle microturbine system and method of operating the same
  • Vehicle microturbine system and method of operating the same

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Experimental program
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Embodiment Construction

[0027] The systems and methods described herein relate to microturbine systems that strategically incorporate aftertreatment devices to reduce emissions in automotive applications such as hybrid electric vehicles incorporating microturbine systems as range extenders. An advantage of microturbine systems is that they are generally lighter and more compact than standard piston-operated internal combustion engines. The micro gas turbine system described herein has an aftertreatment architecture layout and can be operated according to the methods described herein to help manage and / or achieve emissions and odor-free operation for automotive applications. In one embodiment, the aftertreatment device is a combined diesel oxidation catalyst (DOC) and diesel particulate filter (DPF). Emission strategies for combined DOC and DPF include DOC warming and DPF active regeneration to achieve homogenization and avoid exhaust odor.

[0028] figure 1 is a schematic diagram of an exemplary ve...

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Abstract

The invention provides a vehicle microturbine system and a method of operating the same. The invention discloses 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 tochange 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 turbineis configured such that a flow of the treated exhaust drives the turbine and the compressor to power the generator.

Description

Background technique [0001] The technical field relates generally to micro gas turbine systems for vehicles, and more particularly to micro gas turbine systems used as range extenders in hybrid electric motor vehicles. [0002] Unlike standard piston-based internal combustion engines, microturbine systems include a lighter, more compact arrangement in which combustors heat compressed air to drive a turbine, which in turn can power an electric generator. Typical microturbine architectures can result in undesirable hydrocarbon / carbon monoxide emissions, solids emissions and / or odors during warming. For automotive applications, such as when a microturbine system is used as a range extender in a hybrid electric vehicle, it is advantageous to control potential hydrocarbon / carbon monoxide emissions, solid particulate emissions, and / or odor during warm-up. Some control strategies include various combustor optimization techniques, but in applications such as low-emission passenger ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C3/04F02C6/00F02C9/48F01N13/00F01N3/20F01N9/00B60K6/24
CPCF02C3/04F02C6/00F02C9/48F01N13/0097F01N13/008F01N3/20F01N9/002B60K6/24F01N2250/02F05D2220/76F01N2240/14F01N2590/11F01N3/021F01N11/002F01N2900/08F01N2900/1406F05D2250/82F01D15/10Y02T10/12Y02T10/62Y02T10/40Y02T10/70B60K6/46B60W20/16F02C6/20F02C9/16F02C3/14F01N3/035B60Y2400/431F05D2220/32B60Y2200/92
Inventor A·L·瓦萨洛G·伯雷托
Owner GM GLOBAL TECH OPERATIONS LLC