CN2916156Y

CN2916156Y - Oil-limiting valve

Info

Publication number: CN2916156Y
Application number: CN 200620071225
Authority: CN
Inventors: 邬登宽
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-02
Filing date: 2006-05-02
Publication date: 2007-06-27
Anticipated expiration: 2016-05-02

Abstract

The utility model discloses an oil limit valve, which comprises a bonnet (1), a valve (2) and an oil passage (3). The bonnet (1) is connected to one end of the valve (2) by a bolt (4) with its another end connected with the oil passage (3); a small oil chamber (5) is arranged on the bonnet (1) and shall be positioned inside the main oil chamber (6) of the valve (2) if the bonnet (1) is connected with the valve (2); a division board (8) with an oil hole (7) and located by a spring (9) in the main oil chamber (6) is applied to separate the small oil chamber (5) and the main oil chamber (6); the oil passage (3) is provided with an oil inlet (10). The detailed operation is as belows: the oil limit valve stores oil automatically during the operation of the engine, and the oil pump stops the oil supply when the engine is stopped; a large volume of oil flows from the main oil chamber to lubricate and cool the supercharger impeller and the floating bearing; then the small oil chamber discharges oil slowly to lubricate them persistently.

Description

The limit fuel tap

Affiliated technical field

The utility model relates to internal combustion engine part, is specifically related to be applicable to the limit fuel tap on the internal-combustion engine booster.

Background technique

I. C. engine crankshaft rotating speed and supercharger impeller rotating speed are not synchronous speed, differ very big, when bent axle stall oil pump fuel cut-off, still high temperature and high speed inertia oil starvation rotation of supercharger impeller, impeller and the break-in of floating bearing oil starvation produce leakage in various degree, cause: waste oil, exhaust emission, the wearing and tearing of aggravation engine fittings and pressurized machine accessory.

Summary of the invention

The purpose of this utility model is: pressure-limit valve is provided, makes pressurized machine in stall a period of time with open car when operation, the oil-containing molecule is full as far as possible with the floating bearing surface for impeller, adjusts pressurized machine oil-feed aperture control flow rate, suppresses to leak, and reduces and weares and teares.

Technical solution of the present utility model is: this pressure-limit valve mainly is made up of valve end cap, valve body, oil duct, the valve end cap is connected on valve body one end by screw, oil duct is connected on the other end of valve body, establish small oil cavity on the described valve end cap, small oil cavity was positioned at the main oil pocket of valve body when the valve end cap was connected on the valve body, by the isolating plate interval of band oilhole, isolating plate is established oil inlet hole by being positioned at the spring location of main oil pocket on the described oil duct between small oil cavity and the main oil pocket.

The automatic oil storage of engine operation time limit fuel tap, after the parking, the oil pump fuel cut-off limits a large amount of outflow of fuel tap master oil pocket inner engine oil that accessories such as supercharger impeller and floating bearing are lubricated, cool off, lower the temperature, then the slow oil dripping continuous lubrication of small oil cavity.

The utlity model has following advantage: 1. save oil; 2. safeguard engine conditions, no longer limiting engine stops at a high speed and stops preceding dead time; 3. prolong pressurized machine working life; 4. engine oil pump damages or emergency protection pressurized machine during the lubrication system fault.

Description of drawings

Fig. 1 is the utility model structural representation.

Among the figure: 1. valve end cap, 2. valve body, 3. oil duct, 4. screw, 5. small oil cavity, 6. main oil pocket, 7. oilhole, 8. isolating plate, 9. spring, 10. oil inlet hole.

Embodiment

As shown in Figure 1, this pressure-limit valve mainly is made up of valve end cap 1, valve body 2, oil duct 3, valve end cap 1 is connected on valve body 2 one ends by screw 4, oil duct 3 is connected on the other end of valve body 2, establish small oil cavity 5 on the described valve end cap 1, small oil cavity 5 was positioned at the main oil pocket 6 of valve body 2 when valve end cap 1 was connected on the valve body 2, between small oil cavity 5 and the main oil pocket 6 by the isolating plate 8 of band oilhole 7 at interval, oil inlet hole 10 is established on the described oil duct 3 in spring 9 location of isolating plate 8 by being positioned at main oil pocket 6.

The automatic oil storage of engine operation time limit fuel tap, after the parking, the oil pump fuel cut-off limits a large amount of outflow of main oil pocket inner engine oil of fuel tap that accessories such as supercharger impeller and floating bearing are lubricated, cool off, lower the temperature, then the slow oil dripping continuous lubrication of small oil cavity.

Claims

1. limit fuel tap, it is characterized in that: this pressure-limit valve mainly is made up of valve end cap (1), valve body (2), oil duct (3), valve end cap (1) is connected on valve body (2) one ends by screw (4), oil duct (3) is connected on the other end of valve body (2), establish small oil cavity (5) on the described valve end cap (1), valve end cap (1) be connected valve body (2) when going up small oil cavity (5) be positioned at the main oil pocket (6) of valve body (2), between small oil cavity (5) and the main oil pocket (6) by the isolating plate (8) of being with oilhole (7) at interval.

2. limit fuel tap according to claim 1 is characterized in that: spring (9) location of isolating plate (8) by being positioned at main oil pocket (6).

3. limit fuel tap according to claim 1 is characterized in that: establish oil inlet hole (10) on the oil duct (3).