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Supercharger protection control system

A technology of protection control and supercharger, which is applied in the direction of controlling the pressure of lubricant, control temperature of lubricant, pressure lubricant, etc. It can avoid problems such as the increase of the operating temperature of the bearing of the device, so as to prevent damage.

Pending Publication Date: 2020-06-23
广西玉柴船电动力有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of low oil supply pressure, the operating temperature of the supercharger bearing will rise rapidly, and the fault of bearing burnout is likely to occur
In addition, when the engine is shut down for a long time to start, the oil storage in the supercharger bearing inner cavity is small, and the failure of bearing burnout is also likely to occur

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the specific embodiments in the accompanying drawings.

[0024] refer to Figure 1-3 , a supercharger protection control system, including the main oil circuit 3 connecting the engine oil pan 1 with the turbocharger 2, and the main oil circuit 3 from the engine oil pan 1 to the turbocharger 2 is sequentially arranged There is a first oil pump 4 and a first one-way valve 5 . It also includes an auxiliary oil passage 6 connecting the engine oil pan 1 with the turbocharger 2, a protection oil passage 7 connected in parallel with the auxiliary oil passage 6, a pressure sensor 8 for detecting the oil pressure at the input end of the turbocharger 2, A rotational speed sensor 9 and a controller 10 for detecting engine rotational speed, and the auxiliary oil passage 6 are connected with the main oil passage 3 through a three-way valve 19 . A second oil pump 11 and a second check valve 12 are sequentiall...

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Abstract

The invention discloses a supercharger protection control system, relates to engine supercharger protection, and mainly solves the technical problem that a bearing is burnt out due to insufficient oilsupply of an impeller of a supercharger. The supercharger protection control system comprises a main oil way for connecting an engine oil bottom shell with a turbocharger, and a first engine oil pumpand a first one-way valve are sequentially arranged on the main oil way from the engine oil bottom shell to the turbocharger; the supercharger protection control system is further comprises an auxiliary oil way for connecting the engine oil bottom shell with the turbocharger, a protection oil way for being connected with the auxiliary oil way in parallel, a pressure sensor for detecting oil pressure of the input end of the turbocharger, a rotating speed sensor for detecting the rotating speed of an engine and a controller; and a second engine oil pump and a second one-way valve are sequentially arranged on the auxiliary oil way from the engine oil bottom shell to the turbocharger, and the controller is electrically connected with the pressure sensor, the rotating speed sensor and the second engine oil pump. According to the supercharger protection control system, bearing burnout faults of the supercharger can be avoided.

Description

technical field [0001] The invention relates to engine supercharger protection, more specifically, it relates to a supercharger protection control system. Background technique [0002] The oil supply of the existing supercharger is usually through the oil supply of the engine's own oil pump. When the engine suddenly stops, its own oil pump will stop running within a few seconds, and the pressure of the lubricating oil supplied by the supercharger will drop rapidly. For high-speed engines, due to the large inertia of the supercharger bearings, it generally takes more than ten seconds for the speed of the supercharger to decrease from tens of thousands of revolutions. In the case of low oil supply pressure, the operating temperature of the supercharger bearing will rise rapidly, and the fault of bearing burnout is likely to occur. In addition, when the engine is shut down and started for a long time, the oil storage in the inner cavity of the supercharger bearing is small, a...

Claims

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Application Information

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IPC IPC(8): F01M11/00F01M11/03F01M1/02F01M1/16F01M1/20F01M5/00
CPCF01M1/02F01M1/16F01M1/20F01M5/002F01M11/0004F01M11/03F01M2011/0029
Inventor 曾志龙唐克远赖柱波金伟
Owner 广西玉柴船电动力有限公司
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