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Variable displacement rotor oil pump

A technology of rotor oil pump and variable displacement, which is applied to lubrication pumps, mechanical equipment, engine components, etc., can solve the problems of stagnation in the research and application of rotor oil pumps, limited displacement range, and increased cost, and achieves the realization of variable displacement. Quantitative effect, improved controllability, simple structure effect

Pending Publication Date: 2022-01-11
宋宇希
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difficulty of variable displacement, its further development is limited. There are also some researches on variable displacement technology of rotor pumps on the market. The application is basically at a standstill
[0005] To sum up, there is an urgent need for a variable displacement rotor oil pump to solve the problems of difficulty in variable displacement, limited displacement range, poor controllability and high cost in the prior art

Method used

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  • Variable displacement rotor oil pump
  • Variable displacement rotor oil pump
  • Variable displacement rotor oil pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] see Figure 1-5 , a variable displacement rotor oil pump, comprising a pump body 1, a rotor assembly and a pump cover 2, the pump body 1 and the pump cover 2 are arranged opposite to each other; see figure 1 and image 3 , the pump body 1 is provided with an oil suction port 1.5 communicating with the engine oil pan and an oil outlet 1.3 communicating with the engine main oil passage. Specifically, the oil outlet 1.3 is connected to the engine main oil through the engine oil filter. The oil suction port 1.5 is communicated with the engine oil pan through the engine filter, and the oil outlet port 1.3 and the oil suction port 1.5 are separated by a partition (not shown in the figure); the pump body 1 is also provided with There is a positioning table 1.1 and a positioning shaft 1.2; the positioning table 1.1 is arranged on the partition;

[0040] The rotor assembly is arranged between the pump body 1 and the pump cover 2; the rotor assembly includes a rotor positioning...

Embodiment 2

[0056] see Figure 6-10 , a variable displacement rotor oil pump, comprising a pump body 1, a rotor assembly and a pump cover 2, the pump body 1 is arranged opposite to the pump cover 2; see Image 6 and Figure 8 , the pump body 1 is provided with an oil suction port 1.5 communicated with the engine oil pan and an oil outlet 1.3 communicated with the main oil passage of the engine. Specifically, the oil outlet 1.3 is connected with the engine main oil through the engine oil filter. The oil inlet 1.5 communicates with the engine oil pan through the engine filter, and the oil outlet 1.3 and the oil inlet 1.5 are separated by a separator (not shown in the figure); There is a positioning platform 1.1 and a positioning shaft 1.2; the positioning platform 1.1 is arranged on the partition;

[0057] The rotor assembly is arranged between the pump body 1 and the pump cover 2; the rotor assembly includes a rotor positioning mechanism Q; see Image 6 and Figure 9-10 The rotor posit...

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Abstract

The invention provides a variable displacement rotor oil pump. The variable displacement rotor oil pump comprises a pump body, a rotor assembly and a pump cover, and the pump body and the pump cover are oppositely arranged; an oil suction port and an oil outlet are formed in the pump body; a positioning table and a positioning shaft are further arranged on the pump body; the rotor assembly is arranged between the pump body and the pump cover; the rotor assembly comprises a rotor positioning mechanism; the rotor positioning mechanism comprises a rotor body, a main cavity and an arc-shaped cavity; the rotor body is rotatably arranged in the pump body, and an unoccupied gap is formed between the rotor body and the pump body; the arc-shaped cavity is used for accommodating the positioning shaft and is in sliding contact with the positioning shaft; the inner wall of the main cavity is in sliding contact with the side wall of the positioning table; and a blocking piece is arranged on the main cavity, the blocking piece and the positioning table jointly divide the main cavity into an oil inlet cavity and an oil discharge cavity, the oil inlet cavity is communicated with the oil suction port, and the oil discharge cavity is communicated with the oil outlet. The variable displacement effect can be achieved, the structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of oil pumps, in particular to a variable displacement rotor oil pump. Background technique [0002] Most of the existing engines are equipped with quantitative oil pumps. When this type of quantitative oil pump is used, the oil supply flow increases with the increase of the engine speed, and the oil pressure in the oil passage will continue to increase, which will increase the oil temperature and decrease the viscosity, which will affect the lubricating effect of the oil and the safety of the engine. run. In this regard, relevant technical personnel control the oil supply flow and pressure of this type of quantitative oil pump by setting a pressure limiting valve to ensure the normal operation of the engine. However, after the pressure limiting valve is set, the excess oil of this type of quantitative oil pump will flow back to the oil pump inlet or the engine oil pan through the pressure limiting valve d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N13/20
CPCF16N13/20
Inventor 宋宇希
Owner 宋宇希