CN102003233B

CN102003233B - Large-flow continuous variable valve timing (CVVT) fuel control valve with filter screen

Info

Publication number: CN102003233B
Application number: CN2010105790075A
Authority: CN
Inventors: 汪澜; 范国平
Original assignee: Kko Chengdu Machine & Electron Co Ltd
Current assignee: Kko Chengdu Machine & Electron Co Ltd
Priority date: 2010-12-08
Filing date: 2010-12-08
Publication date: 2012-03-28
Anticipated expiration: 2030-12-08
Also published as: CN102003233A

Abstract

The invention discloses a large-flow continuous variable valve timing (CVVT) fuel control valve with a filter screen. The large-flow CVVT fuel control valve with the filter screen comprises a valve bush component, a rear yoke iron component, a front yoke iron component, an iron core component, a winding component and an outer yoke sleeve component, wherein the valve bush component consists of a valve bush (1), a return spring (2), a valve core (3) and a ring; the valve bush (1) is provided with a fuel feed port (12), an entrance angle oil port (17) and a lag angle oil angle (19); and the fuel feed port (12), the entrance angle oil port (17) and the lag angle oil angle (19) are pressed into the filter screen (18) respectively. The large-flow CVVT fuel control valve with the filter screen controls the fuel flow to increase by 50 percent, improves the quick response time of a valve timing actuator, increases a filtering function of the filter screen, effectively protects foreign matters from entering the fuel control valve, guarantees that the valve core can slide in the valve bush freely, reduces the possibility of the clamping stagnation of the valve core, increases the working reliability of a valve timing system, reduces the requirements of a motor on the using environment and prolongs the service life of a product.

Description

A kind of continuous variable valve fuel regulator valve in correct time of big flow band filter screen

Technical field

The present invention relates to technical field of engines, particularly a kind of continuous variable valve fuel regulator valve in correct time of big flow band filter screen.

Background technique

In motor and pipeline processing thereof, can stay many burrs, any small burr all may bring great influence to engine life and overall performance; Adopt processing methods such as electrical spark, electrolysis, abrasive flows can remove a large amount of burrs; But receive the pressure of equipment input cost and manufacture cost; Not all motor producer can both take machinery deburring method, has not just had small burr and greasy dirt in the pipeline that also dare not guarantee motor fully even adopted; If adopt the method for artificial deburring, just more can not guarantee the spatter property of complete deburring and engine interior pipeline.

Simultaneously, fuel regulator valve is the control valve that a kind of high precision cooperates, and is very high to the turbidity test requirement of inside; Foreign matter need be controlled at 0.3 millimeter of size; Weight is below 2 milligrams, so the turbidity test in assembling place are crucial in the assembly process of motor, and in principle will be according to carrying out operation under the turbidity test of micron, the constant temperature and pressure environment; Also need guarantee the turbidity test of each component and equipment simultaneously; But under the reality, the operation under open environment of a lot of engine works is difficult to guarantee the spatter property of motor.

Also there is the carbon deposit phenomenon in actual use in motor, and carbon deposit can pollute the lubricant oil of motor, produces colloidal material impurity; The chip that wearing and tearing between the counterpart produce also can pollution lubricating oil.

At present at CVVT (Continue Variable Valve Timing)---the problem below the fuel regulator valve that uses in the CVTC exists: 1. the precision of fuel regulator valve is relatively poor; There is not filtration simultaneously; Foreign matter can get into fuel regulator valve inside, and valve core is often by clamping stagnation; 2. control the less occasion that can't be applicable to that some discharge capacities are big or have relatively high expectations of flow of oil plant; 3. valve timing final controlling element fast response time slow.

The fuel regulator valve that is applicable to continuous variable valve correct time that in sum, be badly in need of a kind of big flow now and that have filtering function solves above-mentioned problem.

Summary of the invention

The object of the invention promptly is to overcome the defective of existing technology; A kind of continuous variable valve fuel regulator valve in correct time of big flow band filter screen is proposed; Also this improves the fast response time of final controlling element valve timing can to increase flow; Can have simultaneously filtering function and can effectively protect foreign matter entering fuel regulator valve inside, guarantee that valve core slides freely in valve pocket, can increase the functional reliability of valve timing system.

The objective of the invention is to realize: a kind of continuous variable valve fuel regulator valve in correct time of big flow band filter screen through following technological scheme; It comprises valve pocket assembly, back yoke assembly, preceding yoke assembly, assembly unshakable in one's determination, wire-winding unit and outer yoke grip assembly; The valve pocket assembly is made up of valve pocket, return spring, valve core and type circle; Assembly unshakable in one's determination is made up of rotating shaft and riveting unshakable in one's determination; Back yoke assembly is made up of back yoke, guide pin bushing and rear end yoke sheet riveting, and preceding yoke assembly is made up of preceding yoke, guide pin bushing and front end yoke sheet riveting;

Outer yoke grip assembly is made up of outer yoke cover and mounting bracket, and fuel regulator valve is fixed on the motor through mounting bracket, and mounting bracket is welded on outer yoke cover surface;

Wire-winding unit and back yoke assembly are installed in the rear end of outer yoke grip assembly, and employing type circle sealing back riveting is fixed between the two, and assembly unshakable in one's determination, preceding yoke assembly and valve pocket assembly are installed in the front end of outer yoke grip assembly, all fix with riveting after the sealing of type circle between the three.

Valve pocket is provided with oil-feed port, advances angle hydraulic fluid port and delay angle hydraulic fluid port, oil-feed port, advances the angle hydraulic fluid port and the delay angle hydraulic fluid port is pressed into filter screen respectively.

Described filter screen is to be combined by stainless (steel) wire and plastic frame, and the specification of stainless (steel) wire is: stainless steel order number is the 60-100/ inch, the PPS material that plastic frame adopts.

Also be provided with skeleton in the described outer yoke cover, enameled cable is installed on the skeleton, an end of enameled cable connects lug plate.

Beneficial effect of the present invention shows: the flow of control oil has increased by 50%, has improved the fast response time of final controlling element valve timing; Simultaneously at oil-feed port, advance Jiao Kou, the delay angle mouth has increased the strainer filtering function respectively; Protect foreign matter effectively and got into fuel regulator valve inside; Guarantee that valve core slides freely in valve pocket, reduced valve core by the possibility of clamping stagnation, thereby increased the functional reliability of valve timing system greatly; Environmental Conditions to motor requires to reduce the working life of having improved product simultaneously.

Description of drawings

Fig. 1 is the generalized section of fuel regulator valve of the present invention.

Fig. 2 is a valve pocket schematic appearance of the present invention

Fig. 3 is a filter screen schematic appearance of the present invention

Fig. 4 is a filter screen generalized section of the present invention

Among the figure, 1-valve pocket, 2-return spring, 3-valve core, 4-type circle, 5-mounting bracket; The outer yoke cover of 6-, yoke before the 7-, yoke behind the 8-, 9-skeleton, 10-enameled cable, 11-lug plate; The 12-oil-feed port, the 13-wire-winding unit, the 14-rotating shaft, 15-is unshakable in one's determination, the 16-guide pin bushing; 17-advances the angle hydraulic fluid port, 18-filter screen, 19-delay angle hydraulic fluid port, 20-rear end yoke sheet, 21-front end yoke sheet.

Embodiment

Below in conjunction with accompanying drawing the present invention is done further description, but that protection domain is not limited to is said.

Like Fig. 1, Fig. 2; A kind of continuous variable valve fuel regulator valve in correct time of big flow band filter screen; It is characterized in that: it comprises valve pocket assembly, back yoke assembly, preceding yoke assembly, assembly unshakable in one's determination, wire-winding unit and outer yoke grip assembly; The valve pocket assembly is by being made up of valve pocket 1, return spring 2, valve core 3 and type circle 4; Assembly unshakable in one's determination is made up of rotating shaft 14 and 15 rivetings unshakable in one's determination, and back yoke assembly is made up of afterwards yoke 8, guide pin bushing 16 and rear end yoke sheet 20 rivetings, and preceding yoke assembly is made up of preceding yoke 7, guide pin bushing 16 and front end yoke sheet 21 rivetings;

Outer yoke grip assembly is made up of with mounting bracket 5 outer yoke cover 6, and fuel regulator valve is fixed on the motor through mounting bracket 5, and mounting bracket 5 is welded on outer yoke and overlaps 6 surfaces;

Wire-winding unit 13 and back yoke assembly are installed in the rear end of outer yoke grip assembly; Employing type circle sealing back riveting is fixed between the two; Assembly unshakable in one's determination, preceding yoke assembly and valve pocket assembly are installed in the front end of outer yoke grip assembly, all fix with type circle sealing back riveting between the three.

Valve pocket 1 is provided with oil-feed port 12, advances angle hydraulic fluid port 17 and delay angle hydraulic fluid port 19, oil-feed port 12, advances angle hydraulic fluid port 17 and delay angle hydraulic fluid port 19 is pressed into filter screen 18 respectively, simultaneously; The diameter of valve pocket 1, valve core 1 is all according to designing requirement; Strengthened size on the original basis, flow has increased about 50%, satisfies the fast response time of final controlling element valve timing; Filter screen 18 can prevent that foreign matter from getting into the inside of fuel regulator valve inner and valve timing of final controlling element; Guarantee the safe and reliable work of valve timing system, the motor of the arbitrary position butt joint in a circumferential direction of the hydraulic fluid port on the valve pocket 1 simultaneously interface unit, the oil duct of hydraulic fluid port on the valve pocket 1 and valve core 3 is one to one.

Like Fig. 3, Fig. 4; Described filter screen 18 is to be combined by stainless (steel) wire and plastic frame, and the specification of stainless (steel) wire is: stainless steel order number is the 60-100/ inch, and monocular is of a size of 0.198mm steel wire diameter 0.120mm; The stainless (steel) wire pull-out strength is more than the 40N; The PPS material that plastic frame adopts, high temperature resistant, not yielding.

Also be provided with skeleton 9 in the described outer yoke cover 6, enameled cable 10 is installed on the skeleton 9, an end of enameled cable 10 connects lug plate 11.

Behind the oil-feed filter screen 18 on the hydraulic oil process motor that oil pump is come out; Clean hydraulic oil gets into fuel regulator valve inside and gets into final controlling element valve timing from one of them filter screen 18 process again; After final controlling element operation valve timing, the hydraulic oil of discharge flows back to sump behind another filter screen 18 entering fuel regulator valve inside through fuel regulator valve.The working environment of whole hydraulic oil all cleans, thereby has guaranteed the reliability of valve timing system work.

Claims

1. the continuous variable valve fuel regulator valve in correct time of one kind big flow band filter screen; It is characterized in that: it comprises valve pocket assembly, back yoke assembly, preceding yoke assembly, assembly unshakable in one's determination, wire-winding unit and outer yoke grip assembly; The valve pocket assembly is made up of valve pocket (1), return spring (2), valve core (3) and type circle; Assembly unshakable in one's determination is made up of rotating shaft (14) and (15) riveting unshakable in one's determination; Back yoke assembly is made up of back yoke (8), guide pin bushing (16) and rear end yoke sheet (20) riveting, and preceding yoke assembly is made up of preceding yoke (7), guide pin bushing (16) and front end yoke sheet (21) riveting;

Outer yoke grip assembly is made up of outer yoke cover (6) and mounting bracket (5), and fuel regulator valve is fixed on the motor through mounting bracket (5), and mounting bracket (5) is welded on outer yoke cover (6) surface;

Wire-winding unit (13) and back yoke assembly are installed in the rear end of outer yoke grip assembly; Employing type circle sealing back riveting is fixed between wire-winding unit (13) and the back yoke assembly; Assembly unshakable in one's determination, preceding yoke assembly and valve pocket assembly are installed in the front end of outer yoke grip assembly, all fix with type circle sealing back riveting between assembly unshakable in one's determination, preceding yoke assembly and the valve pocket assembly;

Valve pocket (1) is provided with oil-feed port (12), advances angle hydraulic fluid port (17) and delay angle hydraulic fluid port (19), oil-feed port (12), advances angle hydraulic fluid port (17) and delay angle hydraulic fluid port (19) is pressed into filter screen (18) respectively.

2. the continuous variable valve fuel regulator valve in correct time of a kind of big flow band filter screen according to claim 1; It is characterized in that: described filter screen (18) is to be combined by stainless (steel) wire and plastic frame; The specification of stainless (steel) wire is: stainless steel order number is the 60-100/ inch, the PPS material that plastic frame adopts.

3. the continuous variable valve fuel regulator valve in correct time of a kind of big flow band filter screen according to claim 1; It is characterized in that: also be provided with skeleton (9) in the described outer yoke cover (6); Skeleton (9) is gone up enameled cable (10) is installed, and an end of enameled cable (10) connects lug plate (12).