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Split type multi-degree-of-freedom valve plate of variable fuel pump

A fuel pump and split type technology, which is applied to liquid variable capacity machinery, pumps, multi-cylinder pumps, etc., can solve the problems of variable fuel pump distribution plate burning, distribution angle adjustment mechanism stuck, distribution plate sealing surface wear and other problems , to reduce friction, increase life, and prevent burning

Active Publication Date: 2021-04-16
西安精密机械研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the variable displacement plunger pump needs to adjust the distribution angle during the working process. Therefore, the distribution plate not only needs to revolve around the center of the main shaft, but also rotates around its own rotation center, and the center of the distribution plate also bears the additional force of the distribution angle adjustment mechanism. eccentric moment; and the underwater gas turbine power system uses propellants of three kinds of media, which needs to solve the corrosion and abnormal wear in the working process. Therefore, the application of the conventional valve plate structure in the variable fuel pump has certain limitations. It is easy to cause the wear of the sealing surface of the valve plate, the sticking of the valve angle adjustment mechanism, and even the burning of the valve plate of the variable fuel pump

Method used

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  • Split type multi-degree-of-freedom valve plate of variable fuel pump
  • Split type multi-degree-of-freedom valve plate of variable fuel pump
  • Split type multi-degree-of-freedom valve plate of variable fuel pump

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Embodiment Construction

[0028] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.

[0029] see image 3 During the working process of the variable fuel pump, because the valve plate 8 rotates eccentrically at high speed on the eccentric small shaft of the crankshaft 7, a centrifugal force F1 is generated during this proces...

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Abstract

The invention discloses a split type multi-degree-of-freedom valve plate of a variable fuel pump, and relates to the technical field of variable fuel pumps. The use requirements of the variable fuel pump for an underwater gas turbine energy power system are met, the problems of valve plate clamping stagnation and plate burning existing in the variable fuel pump flow distribution angle changing process are solved, the problem that an existing non-through-shaft type variable plunger pump with variable displacement by changing the misalignment angle of a valve plate and a swash plate shaft is small in flow distribution angle adjusting range is solved, additional torque attached to the valve plate in the large-range changing process of the flow distribution angle is eliminated, a friction pair of the valve plate is optimally configured, and therefore the flow distribution angle can be adjusted more flexibly and reliably in the working process. The split type multi-degree-of-freedom valve plate is suitable for a variable adjusting mechanism of the variable fuel pump required by the high-power underwater gas turbine power system.

Description

technical field [0001] The invention belongs to the field of underwater gas turbine power systems, and in particular relates to a split-type multi-degree-of-freedom flow plate of a variable fuel pump. Background technique [0002] The fuel pump used in the underwater power system needs to be equipped with a fuel pump distribution mechanism in order to realize the pressurization of the fuel during the pump operation. The main function of the fuel pump flow distribution mechanism is to communicate the high-pressure fuel with the fuel outlet cavity when the plunger discharges oil during the reciprocating movement of the plunger, and to communicate with the fuel inlet cavity during the plunger suction process. Therefore, the quality of the fuel pump distribution mechanism will determine the overall performance and volumetric efficiency of the pump. Conventional fuel pumps adopt a structure in which the eccentric small shaft on the main shaft drives the distribution plate to rot...

Claims

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Application Information

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IPC IPC(8): F04B1/188F04B1/141F16C33/10F16C33/12F04B15/02
CPCY02E30/30
Inventor 李永东马小录张漫路白坤雪冯要飞
Owner 西安精密机械研究所
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