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Dual-motor auxiliary turbocharger adopting independent lubricating and cooling system

A turbocharger, lubricating and cooling technology, used in machines/engines, electrical control, mechanical equipment, etc., can solve problems such as turbo lag, improve reliability, improve turbo lag, and reduce costs.

Active Publication Date: 2019-03-08
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of "turbo lag" of the turbocharger, the present invention proposes a dual-motor auxiliary turbocharger using an independent lubrication and cooling system

Method used

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  • Dual-motor auxiliary turbocharger adopting independent lubricating and cooling system
  • Dual-motor auxiliary turbocharger adopting independent lubricating and cooling system
  • Dual-motor auxiliary turbocharger adopting independent lubricating and cooling system

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Embodiment Construction

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] A dual-motor auxiliary turbocharger using an independent lubrication and cooling system in the present invention includes a compressor 1, a main motor 2, a gear pump 3, a turbine 4, an auxiliary motor 5 and a turbocharger housing 6, such as figure 1 shown.

[0041] The supercharger housing 6 has two parts, the left and the right, and the connection ends of the two parts of the housing have connecting flanges, and the two parts of the housing are fastened and sealed by bolt connection. The supercharger housing is provided with a supercharger rotating shaft 7, and the two ends of the supercharger rotating shaft 7 pass through the left and right sides of the supercharger housing 6 respectively, and the two ends are supported on the left and right sides of the supercharger housing 6 through floating bearings. end.

[0042] The compressor 1, the main moto...

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Abstract

The invention discloses a dual-motor auxiliary turbocharger adopting an independent lubricating and cooling system. It is proposed that a turbocharging auxiliary and power generation system of a switch reluctance motor is adopted, a motor rotor and a rotor of a turbine-gas compressor are integrated, and a traditional exhaust gas bypass valve mechanism for turbocharging is omitted. When exhaust gasenergy is insufficient in the low-speed operating process of an engine or the engine is accelerated, motors are adjusted to be in an electric auxiliary state; and when the energy is excess in the high-speed operating process of the engine or the engine is decelerated, the motors are adjusted to be in a power generation braking state, and electric energy is stored. The dual-motor auxiliary turbocharger adopts the independent lubricating and cooling system and is internally provided with a gear pump serving as power for circulating flowing of the lubricating and cooling engine oil, and a driving gear of the gear pump is directly mounted on a turbine-gas compressor shaft; and the small-power motor is additionally mounted on the turbine side and used for assisting work when the engine is accelerated, and the response speed is increased; it is proposed that a position sensor of the main motor is omitted, and the position of a rotor of the main motor is judged through position information of the auxiliary motor; and system reliability is improved, and the cost is lowered.

Description

technical field [0001] The invention relates to the technical field of turbocharging, in particular to a dual-motor auxiliary turbocharger adopting an independent lubricating and cooling system. Background technique [0002] Turbocharging technology can effectively reduce the size of the engine and improve the power and economy of the engine on the premise of ensuring the power output of the engine, making this technology one of the development directions of the engine in the future. It uses the exhaust gas energy from the engine to push the turbine located behind the exhaust passage to drive the compressor impeller coaxial with the turbine to rotate, and then the pressurized air is sent into the cylinder, thereby improving the volumetric efficiency and power output of the engine. However, this technology has some defects: when the engine is running at low speed, the energy of the exhaust gas is small, and the turbocharging system is almost in a non-working state, which cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B37/10F02B37/12F02B39/14F02B39/00F02B41/10F02D41/00F02D29/06
CPCF02B37/10F02B37/12F02B39/005F02B39/14F02B41/10F02B2037/122F02D29/06F02D41/0007F02D2200/0404F02D2200/101F02D2200/60Y02T10/12
Inventor 张奇周煜张银友文斌吴凯
Owner BEIHANG UNIV
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