CN104405940A - Accurate-pressure balance valve for make-up water tank of internal combustion engine and control method of accurate-pressure balance valve - Google Patents
Accurate-pressure balance valve for make-up water tank of internal combustion engine and control method of accurate-pressure balance valve Download PDFInfo
- Publication number
- CN104405940A CN104405940A CN201410626905.XA CN201410626905A CN104405940A CN 104405940 A CN104405940 A CN 104405940A CN 201410626905 A CN201410626905 A CN 201410626905A CN 104405940 A CN104405940 A CN 104405940A
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- Prior art keywords
- spool
- water cavity
- valve
- hand
- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2025/00—Measuring
- F01P2025/04—Pressure
- F01P2025/06—Pressure for determining flow
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a parallel pipe pressure balance valve for a make-up water tank of an internal combustion engine, and a control method of the balance valve. The parallel pipe pressure balance valve comprises the make-up water tank, a left water cavity, a spring, a valve body, a valve core, a rightward waterway, a leftward waterway, a right water cavity, a radiator, a sealing ring and retaining columns, wherein the make-up water tank is arranged at the left end of the left water cavity; the right end of the left water cavity is connected with the left end of the valve body; the right end of the valve body is connected with the left end of the right water cavity; the right end of the right water cavity is connected with the radiator; the left side in the left water cavity and the right side in the right water cavity are respectively arranged with two retaining columns; the valve core is arranged in the valve body; the valve body is closely combined with the valve core by the sealing ring; the spring is arranged in the left water cavity; the two ends of the spring are respectively connected with the left side of the left water cavity and the left end of the valve core; the rightward waterway and the leftward waterway are arranged in the valve core. According to the parallel pipe pressure balance valve, the amount of cooling liquid in a waterway of the radiator can be accurately controlled in time when the make-up water tank and a cooling pipeline have a pressure difference, especially, the unstable flow rate change between the make-up water tank and the cooling pipeline caused by the up and down jolt of a vehicle and the like can be prevented, and the stability and the efficiency of a cooling system are improved.
Description
Technical field
The invention belongs to internal-combustion engine cooling system, particularly relate to a kind of parallel tubes pressure balance valve for internal-combustion engine extra feed tank and controlling method thereof.
Background technique
Extra feed tank is as a part for internal-combustion engine cooling system, be full of for keeping the liquid that is cooled of moment in radiator, eliminate all bubbles in cooling system, and the danger that metal is corroded can be reduced, the efficiency of cooling system is increased greatly, but also more and more higher for the requirement of the coolant pressure equilibrium valve of radiator and extra feed tank.The complex structure cost of existing coolant pressure equilibrium valve is high, and is easily subject to the impact of the extraneous factors such as vehicle jolts, and easily occurs the defect can not carrying out accurately control to cooling liquid pressure.For vehicle to pitch etc. cause between both radiator and extra feed tank flow unexpected increase or unstablely to change, by parallel tubes pressure balance valve, effectively can improve stability and the working efficiency of cooling system.
Summary of the invention
The object of the invention is the deficiency for existing cooling liquid of IC engine equilibrated valve, a kind of parallel tubes pressure balance valve for internal-combustion engine extra feed tank and controlling method thereof are provided.
Parallel tubes pressure balance valve for internal-combustion engine extra feed tank comprises extra feed tank, left water cavity, spring, valve body, spool, dextrad water route, left-hand water route, right water cavity, radiator, seal ring, retaining post; Left water cavity left end is provided with extra feed tank, left water cavity right-hand member is connected with valve body left end, valve body right-hand member is connected with right water cavity left end, right water cavity right-hand member is connected with radiator, and in left water cavity, left side and the interior right side of right water cavity are respectively provided with 2 retaining posts, are provided with spool in valve body, valve body and spool are combined closely by seal ring, be provided with spring in left water cavity, both ends of the spring is connected with spool left end with on the left of left water cavity respectively, is provided with dextrad water route, left-hand water route in spool.
Controlling method for the parallel tubes pressure balance valve of internal-combustion engine extra feed tank is: when in extra feed tank, the pressure of cooling liquid is greater than radiator, can produce dextrad thrust makes spool move to the right, until the left-hand tension balanced that the dextrad thrust produced by pressure difference and spring deformation produce, spool stop motion, valve body is exposed in dextrad water route, on the left of spool, the extra feed tank cooling liquid of left water cavity flows to right water cavity on the right side of spool by dextrad water route, spool two ends pressure difference reduces gradually, the dextrad thrust produced reduces thereupon, spool is retracted initial position by spring, valve two ends cooling liquid stops exchanging, when in radiator, the pressure of cooling liquid is greater than extra feed tank, can produce left-hand thrust makes spool move to the left, until the dextrad thrust-balancing that the left-hand thrust produced by pressure difference and spring deformation produce, spool stop motion, valve body is exposed in left-hand water route, on the right side of spool, the radiator coolant of right water cavity flows to left water cavity on the left of spool by left-hand water route, spool two ends pressure difference reduces gradually, the left-hand thrust produced reduces thereupon, spool is pushed back initial position by spring, valve two ends cooling liquid stops exchanging, when actual pressure difference is less than minimum pressure difference limen value a, the lateral thrust produced is not enough to make the displacement of the horizontal side-to-side movement of spool exceed dextrad water route, left-hand water route and spool two ends institute made allowance, then valve two ends cooling liquid does not exchange, when actual pressure difference is greater than maximum pressure difference limen value b, the lateral thrust produced makes the displacement of the horizontal side-to-side movement of spool reach maximum, and peak at retaining post, valve body is all exposed in dextrad water route or left-hand water route, and valve two ends cooling liquid exchange capacity reaches peak value.
The present invention can carry out instant accurately control when extra feed tank and cooling line exist pressure difference to cooling liquid measure in radiator, particularly can prevent by vehicle to pitch etc. cause the two between the instability of changes in flow rate, improve stability and the efficiency of cooling system.
Accompanying drawing explanation
Fig. 1 is the side cut away view of internal-combustion engine extra feed tank parallel tubes pressure balance valve;
Fig. 2 is the part detailed drawing of the side cut away view of internal-combustion engine extra feed tank parallel tubes pressure balance valve;
Fig. 3 is the spool right lateral figure of internal-combustion engine extra feed tank parallel tubes pressure balance valve;
Fig. 4 is the characteristic working curve figure of internal-combustion engine extra feed tank parallel tubes pressure balance valve;
In Fig. 1: extra feed tank 1, left water cavity 2, spring 3, valve body 4, spool 5, dextrad water route 6, left-hand water route 7, right water cavity 8, radiator 9, seal ring 10, retaining post 11.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
With reference to figure 1 and Fig. 2, the parallel tubes pressure balance valve for internal-combustion engine extra feed tank comprises extra feed tank 1, left water cavity 2, spring 3, valve body 4, spool 5, dextrad water route 6, left-hand water route 7, right water cavity 8, radiator water route 9, seal ring 10, retaining post 11; Left water cavity 2 left end is provided with extra feed tank 1, left water cavity 2 right-hand member is connected with valve body 4 left end, valve body 4 right-hand member is connected with right water cavity 8 left end, right water cavity 8 right-hand member is connected with radiator 9, and in left water cavity 2, left side and the interior right side of right water cavity 8 are respectively provided with 2 retaining posts 11, are provided with spool 5 in valve body 4, valve body 4 and spool 5 are combined closely by seal ring, be provided with spring 3 in left water cavity 2, spring 3 two ends are connected with spool 5 left end with on the left of left water cavity 2 respectively, are provided with dextrad water route 6, left-hand water route 7 in spool 5.
With reference to figure 1, Fig. 2 and Fig. 3, controlling method for the parallel tubes pressure balance valve of internal-combustion engine extra feed tank is: when in extra feed tank 1, the pressure of cooling liquid is greater than radiator 9, can produce dextrad thrust makes spool 5 move to the right, until the left-hand tension balanced that the dextrad thrust produced by pressure difference and spring 3 deformation produce, spool 5 stop motion, valve body 4 is exposed in dextrad water route 6, on the left of spool 5, the extra feed tank cooling liquid of left water cavity 2 flows to right water cavity 8 on the right side of spool 5 by dextrad water route 6, spool two ends pressure difference reduces gradually, the dextrad thrust produced reduces thereupon, spool 5 is retracted initial position by spring 3, valve two ends cooling liquid stops exchanging, when in radiator 9, the pressure of cooling liquid is greater than extra feed tank 1, can produce left-hand thrust makes spool 5 move to the left, until the dextrad thrust-balancing that the left-hand thrust produced by pressure difference and spring 3 deformation produce, spool 5 stop motion, valve body 4 is exposed in left-hand water route 7, on the right side of spool 5, the radiator coolant of right water cavity 8 flows to left water cavity 2 on the left of spool 5 by left-hand water route 7, spool 5 two ends pressure difference reduces gradually, the left-hand thrust produced reduces thereupon, spool 5 is pushed back initial position by spring 3, valve two ends cooling liquid stops exchanging, when actual pressure difference is less than minimum pressure difference limen value a, the lateral thrust produced is not enough to make the displacement of the horizontal side-to-side movement of spool 5 exceed dextrad water route 6, left-hand water route 7 and spool 5 two ends institute made allowance, then valve two ends cooling liquid does not exchange, when actual pressure difference is greater than maximum pressure difference limen value b, the lateral thrust produced makes the displacement of the horizontal side-to-side movement of spool 5 reach maximum, peak at retaining post 11, valve body 4 is all exposed in dextrad water route 6 or left-hand water route 7, and valve two ends cooling liquid exchange capacity reaches peak value.
Replaceable existing extra feed tank valve when parallel tubes pressure balance valve is on automobile, and flexible pipe can be used to connect, also little compared with former extra feed tank valve to space requirement, and provide more stable, reliable radiator water route internal pressure to regulate.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1., for a parallel tubes pressure balance valve for internal-combustion engine extra feed tank, it is characterized in that comprising extra feed tank (1), left water cavity (2), spring (3), valve body (4), spool (5), dextrad water route (6), left-hand water route (7), right water cavity (8), radiator (9), seal ring (10), retaining post (11), left water cavity (2) left end is provided with extra feed tank (1), left water cavity (2) right-hand member is connected with valve body (4) left end, valve body (4) right-hand member is connected with right water cavity (8) left end, right water cavity (8) right-hand member is connected with radiator (9), in left water cavity (2), left side and the interior right side of right water cavity (8) are respectively provided with 2 retaining posts (11), spool (5) is provided with in valve body (4), valve body (4) and spool (5) are combined closely by seal ring (11), spring (3) is provided with in left water cavity (2), spring (3) two ends are connected with spool (5) left end with left water cavity (2) left side respectively, dextrad water route (6) is provided with in spool (5), left-hand water route (7).
2. one kind uses as described in claim 1 for the controlling method of the parallel tubes pressure balance valve of internal-combustion engine extra feed tank, it is characterized in that when in extra feed tank (1), the pressure of cooling liquid is greater than radiator (9), can produce dextrad thrust makes spool (5) move to the right, until the left-hand tension balanced that the dextrad thrust produced by pressure difference and spring (3) deformation produce, spool (5) stop motion, valve body (4) is exposed in dextrad water route (6), the extra feed tank cooling liquid of spool (5) the left water cavity in left side (2) flows to the right water cavity (8) on spool (5) right side by dextrad water route (6), spool (5) two ends pressure difference reduces gradually, the dextrad thrust produced reduces thereupon, spool (5) is retracted initial position by spring (3), valve two ends cooling liquid stops exchanging, when in radiator (9), the pressure of cooling liquid is greater than extra feed tank (1), can produce left-hand thrust makes spool (5) move to the left, until the dextrad thrust-balancing that the left-hand thrust produced by pressure difference and spring (3) deformation produce, spool (5) stop motion, valve body (4) is exposed in left-hand water route (7), the radiator coolant of spool (5) the right water cavity in right side (8) flows to the left water cavity (2) in spool (5) left side by left-hand water route (7), spool (5) two ends pressure difference reduces gradually, the left-hand thrust produced reduces thereupon, spool (5) is pushed back initial position by spring (3), valve two ends cooling liquid stops exchanging, when actual pressure difference is less than minimum pressure difference limen value a, the lateral thrust produced is not enough to make the displacement of spool (5) horizontal side-to-side movement exceed dextrad water route (6), left-hand water route (7) and spool (5) two ends institute made allowance, then valve two ends cooling liquid does not exchange, when actual pressure difference is greater than maximum pressure difference limen value b, the lateral thrust produced makes the displacement of spool (5) horizontal side-to-side movement reach maximum, peak at retaining post (11), valve body (4) is all exposed in dextrad water route (6) or left-hand water route (7), and valve two ends cooling liquid exchange capacity reaches peak value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626905.XA CN104405940B (en) | 2014-11-10 | Accurate pressure compensation flap and control method thereof for internal combustion engine extra feed tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410626905.XA CN104405940B (en) | 2014-11-10 | Accurate pressure compensation flap and control method thereof for internal combustion engine extra feed tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104405940A true CN104405940A (en) | 2015-03-11 |
| CN104405940B CN104405940B (en) | 2017-01-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850195A (en) * | 1973-04-30 | 1974-11-26 | E Olsson | Fluid pressure valve |
| EP0133623B1 (en) * | 1983-08-12 | 1988-01-07 | HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG | Flow limiting valve |
| US20050211303A1 (en) * | 2004-03-25 | 2005-09-29 | Honda Motor Co. Ltd. | Bi-directional damper valve for a hydraulic line, power steering system incorporating the damper valve, and methods of using same |
| CN101893114A (en) * | 2010-07-14 | 2010-11-24 | 潘兆铿 | Mixing governing constant-temperature water valve with pressure balance device |
| CN204300447U (en) * | 2014-11-10 | 2015-04-29 | 浙江大学 | A kind of accurate pressure compensation flap for internal combustion engine extra feed tank |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3850195A (en) * | 1973-04-30 | 1974-11-26 | E Olsson | Fluid pressure valve |
| EP0133623B1 (en) * | 1983-08-12 | 1988-01-07 | HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG | Flow limiting valve |
| US20050211303A1 (en) * | 2004-03-25 | 2005-09-29 | Honda Motor Co. Ltd. | Bi-directional damper valve for a hydraulic line, power steering system incorporating the damper valve, and methods of using same |
| CN101893114A (en) * | 2010-07-14 | 2010-11-24 | 潘兆铿 | Mixing governing constant-temperature water valve with pressure balance device |
| CN204300447U (en) * | 2014-11-10 | 2015-04-29 | 浙江大学 | A kind of accurate pressure compensation flap for internal combustion engine extra feed tank |
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