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Vehicle pneumatic-internal combustion hybrid power system based on comprehensive recovery and utilization of energy

A technology of hybrid power system and pneumatic engine, which is applied in the direction of internal combustion piston engine, engine components, engine operation, etc., can solve the problems that the total energy efficiency cannot be maximized, so as to improve fuel economy, power and economy , the effect of reducing emissions

Inactive Publication Date: 2014-11-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, the waste heat energy of an internal combustion engine has a cascade characteristic from low-grade energy to high-grade energy, and the recovery and utilization of a single method cannot maximize the total energy efficiency.

Method used

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  • Vehicle pneumatic-internal combustion hybrid power system based on comprehensive recovery and utilization of energy
  • Vehicle pneumatic-internal combustion hybrid power system based on comprehensive recovery and utilization of energy

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Embodiment Construction

[0019] The system embodiment of the present invention includes a water-cooled internal combustion engine 1, an exhaust gas turbine-compressor unit, a water pump 5, a water-air heat exchanger 6, an air-air heat exchanger 7, a gas control valve group 8, a low-pressure gas storage tank 9, High-pressure gas storage tank 10, electronic thermostat 11, air motor 13, gas pipelines A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P , cooling water pipeline Q, R, S, T, U, V, two-way valve V 1 , V 2 , V 3 , V 4 , V 5 , V 6 , V 7 . The gas control valve group 8 includes solenoid valves 15 , 16 , 17 , 18 , 19 , 21 , 22 and a buffer chamber 20 . The outlet of the exhaust pipe of the internal combustion engine 1 is respectively connected with the compressed air energy storage system, the inlet of the exhaust gas turbine 4-1 and the atmosphere, and two-way valves V are respectively arranged on the pipelines. 1 , V 2 , V 3 ; The inlet of the compressor 4-2 is connected to the atmosphere,...

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Abstract

The invention relates to the technical field of energy conservation and emission reduction of an internal combustion engine and aims at providing a vehicle pneumatic-internal combustion hybrid power system based on comprehensive recovery and utilization of energy. The vehicle pneumatic-internal combustion hybrid power system comprises an exhaust gas turbine, an air compressor, a water pump, an electronic thermostat, a water-air heat exchanger, an air-air heat exchanger, a compressed air energy storage system and a control valve. The exhaust gas turbine is connected with the air compressor to form an exhaust gas turbine-air compressor unit. The vehicle pneumatic-internal combustion hybrid power system based on the comprehensive recovery and utilization of energy can achieve four energy recovery and utilization technical paths of internal combustion engine exhaust gas residual energy multistage utilization, internal combustion engine cooling water waste heat multistage utilization, pneumatic engine exhaust gas residual energy utilization and engine braking energy recovery and utilization, achieves cascade recovery of internal combustion engine residual energy and cooling water residual energy from high grade to low grade, simultaneously improves do-work capacity of compressed air, and promotes dynamic property and economical efficiency of a pneumatic engine.

Description

technical field [0001] The invention belongs to the technical field of energy saving and emission reduction of internal combustion engines, and relates to a pneumatic-internal combustion hybrid power system for vehicles based on comprehensive energy recovery and utilization. Background technique [0002] As the main prime mover, the internal combustion engine is widely used in human society. Although the current energy issues and environmental issues are becoming increasingly prominent, and new energy vehicle technologies such as electric vehicles and solar vehicles have emerged, internal combustion engines are currently widely used and have a large number of reserves. The international automotive and internal combustion engine circles generally believe that in the foreseeable future, The internal combustion engine will remain the main source of power for devices such as vehicles. From the current energy balance of internal combustion engines, the power output generally onl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02G5/04F02B47/08F02B37/02
CPCY02T10/166Y02T10/121Y02T10/144Y02T10/12
Inventor 俞小莉王雷李道飞徐焕祥樊之鹏韩松
Owner ZHEJIANG UNIV
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