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An engine pressure balance adjustment system

A technology of balance adjustment and engine, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problem of gasoline running down, achieve the effect of reducing gasoline running down and improving lubrication stability

Active Publication Date: 2020-09-15
JIANGSU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of gasoline running down, the present invention provides an engine pressure balance adjustment system

Method used

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  • An engine pressure balance adjustment system
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] This embodiment proposes an engine pressure balance adjustment system, such as figure 1 As shown, it includes an air filter 1, an air pump 2, an air storage tank 3, a solenoid valve 4, an engine 5 and a sealed control cylinder 6, and the air filter 1 is connected to one end of the air pump 2 through a sixth conduit 71; the air pump The other end of 2 is connected with the gas tank 3 through the seventh conduit 72; the gas tank 3 is communicated with the third port 43 of the solenoid valve 4 through the third conduit 73; the first port 41 of the solenoid valve 4 is connected with the fourth conduit 74 The inner cavity of the crankcase 51 in the engine 5 communicates; the second port 42 of the electromagnetic valve 4 communicates with the intake pipe 53 on the rear side of the throttle valve 52 in the engine 5 through the fifth conduit 75; the cont...

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Abstract

The invention discloses an engine pressure balance adjustment system, which relates to the field of direct injection engines in gasoline cylinders. It includes air filter, air pump, air storage tank, solenoid valve, engine and sealed control cylinder, the air filter, air pump and air storage tank are connected in sequence; the air storage tank is connected with the third port of the solenoid valve; the solenoid valve The first port and the second port are connected with the crankcase cavity and the intake pipe respectively; the control piston and the piston rod connected with it are arranged in the control cylinder; the control piston seals the cylinder cavity on both sides; the left cavity of the cylinder passes through the first A conduit communicates with the inner cavity of the crankcase; the right cavity of the cylinder communicates with the cylinder cavity on the upper side of the piston through the second conduit and the air passage; the two side walls of the control piston are elastically connected to the cylinder walls at their respective adjacent ends through springs; The pressure regulating valve is connected in series on the conduit. The invention reduces the pressure difference between the upper side and the lower side of the piston in the cylinder, and reduces the downward channeling phenomenon of gasoline; the pressure regulating valve is used to control the gas pressure returning from the crankcase to the intake pipe.

Description

technical field [0001] The invention relates to the field of direct injection engines in gasoline cylinders, in particular to an engine pressure balance adjustment system. Background technique [0002] In the current gasoline direct injection engine, the air pressure on the upper side of the piston in the cylinder changes at any time with the change of the working stroke of the engine. Especially in the compression stroke, the air pressure in the cylinder on the upper side of the piston is much greater than the air pressure in the crankcase, and the unburned gasoline injected into the cylinder will flow into the crankcase through the end clearance of the piston or the gap between the piston and the cylinder wall. As a result, gasoline is mixed into the engine oil in the crankcase, causing the oil to be polluted and the lubricating performance of the engine oil to decrease. Contents of the invention [0003] In order to solve the problem of gasoline running down, the inven...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01M13/00
CPCF01M13/00F01M13/0011F01M2013/0022F01M2013/0044F01M2013/0083
Inventor 汪伟贝绍轶刘若晨汪永志李国庆
Owner JIANGSU UNIV OF TECH
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