Electric control VE dispensing pump for directly measuring advance angle by inductance type transducer

A technology of inductive sensors and distribution pumps, which is applied in the direction of machines/engines, engine components, charging systems, etc., can solve problems such as the inability to realize the electronic control of VE distribution pumps, and achieve saving development costs and time, low prices, and increased cams lift effect

CN101545429BActive Publication Date: 2012-01-11福建省莆田市中涵机动力有限公司
0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2012-01-11

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to an electric control VE dispensing pump for directly measuring an advance angle by an inductance type transducer, which comprises a VE dispensing pump with a mechanical governor and an inductance type advance angle sensor; and the inductance type advance angle sensor is arranged at the front end of a dispensing shell of the VE dispensing pump for directly measuring the start time for oil supply of a VE pump. The electric control VE dispensing pump increases the cam rise of the VE dispensing pump on the one hand, and improves oil supply pressure, and accurately controlsthe oil supply advance angle by electric control technology on the other hand; and the prior mechanical governor is adopted to control the oil supply quantity, and an EGR valve is matched for use, sothat the discharge of a diesel engine achieves Europe 3 standard, and the electric control VE dispensing pump has simple structure, low price and convenient maintenance.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an electronically controlled VE distributing pump which uses a mechanical governor to control the oil supply amount and an inductive sensor to directly measure and control the advance angle of the oil supply. Background technique

[0002] In order to make my country's high-speed small diesel engines meet Euro 3 emission requirements, it is a better choice to use electronically controlled VE distribution pumps. Because our country has produced VE distribution pumps in batches for more than ten years, the technology is relatively mature, and the supply and maintenance of accessories are very convenient, but it is still impossible to realize the electronic control of VE distribution pumps. Contents of the invention

[0003] The object of the present invention is to provide an electronically controlled VE distribution pump with simple structure, low price and convenient maintenance, which uses an inductance sensor to directly mea...

Examples

Embodiment Construction

[0012] like figure 1 , 2 As shown, an inductive advance angle sensor B is installed at the front end of the distribution housing 18 of the mechanical speed-adjustable VE distribution pump A, an advancer piston 5 and a high-speed solenoid valve C are installed at the bottom of the oil pump, and a top stop is installed on the distribution pump mounting plate 27. point sensor D. The mechanical governor is used to control the position of the control sleeve and adjust the oil supply of the oil pump. The fuel supply advance angle is directly controlled by the electronic control unit ECU through the high-speed solenoid valve C, and the inductive advance angle sensor B and the top dead center sensor D provide closed-loop control signals to directly control the fuel supply advance angle.

[0013] The structure and working principle of the top dead center signal sensor D are as follows: the top dead center signal sensor D is a sensor equipped with a Hall inductive element. The Hall i...