CN201310404Y

CN201310404Y - Pressure balanced thermoregulator

Info

Publication number: CN201310404Y
Application number: CNU2008201926426U
Authority: CN
Inventors: 牟宜盛; 吴晓飞; 张卫峰
Original assignee: DONGFENG FUJI THOMSON THERMOSTAT Co LTD
Current assignee: DONGFENG FUJI THOMSON THERMOSTAT Co LTD
Priority date: 2008-11-20
Filing date: 2008-11-20
Publication date: 2009-09-16
Anticipated expiration: 2018-11-20

Abstract

A pressure balanced thermoregulator comprises an inductor, a valve seat, a valve, a large spring, a small spring, a bracket, a push rod and a push rod seat. The pressure balanced thermoregulator is characterized in that the valve seat consists of a bottom plate and a lateral plate; the lateral plate adopts a tapered cylinder body, the large end of the lateral plate is connected to the periphery of the bottom plate, and the small end thereof is matched with the outer surface of the cylindrical valve; an opening end is adopted at the upper end of the valve, and the upper end of the valve corresponds to a sealing step in the valve seat bottom plate; an opening capable of allowing water to pass through is formed at the lower end of the valve; the valve is connected with the inductor; a through hole capable of allowing the water to pass through is formed between the sealing step in the bottom plate of the valve seat and the periphery; the push rod inside the inductor is fixed in the push rod seat; the upper end of the bracket is connected with the push rod seat, and the lower end thereof is positioned below the inductor; and the large spring is arranged between a large spring locating hoop and the valve at the lower end of the bracket. The utility model adopts the self inner force of the valve to bear hydraulic pressure caused by tremendous changes, so that a smooth movement of the valve under a pressure balanced state is achieved, the water stream oscillation is eliminated, and the balanced water temperature is easier to realize.

Description

The pressure balance type thermoregulator

Technical field

The utility model relates to gas engine part, relates in particular to explosive motor water cooling system pressure balance type thermoregulator, is mainly used in to start moving water cooling system.

Technical background

Motor owing to the burning of inflammable mixture, makes the interior gas temperature of cylinder reach 1800-2000 ℃ in the course of the work.The part that cylinder block, cylinder head, piston etc. and high-temperature gas directly contact, not enough as untimely cooling or cooling, parts can be because of insufficient lubrication accelerated wear test, and because cylinder charge reduces and burns undesiredly, engine power is descended; But if undercooling, can make machine oil thinning and influence is lubricated, and, the thermal efficiency be descended because heat dissipation is too much.Therefore, motor can not crossed cold or overheated situation work.The thermoregulator that is installed in engine-cooling system water inlet or water outlet can change the big or small circuit flow and the flow direction according to the water temperature of mounting point, and engine water temperature is remained within the scope of setting.

Present known thermoregulator (referring to Fig. 1, Fig. 2) is made up of inductor, valve seat, valve, support and spring etc.Just open temperature when above when engine temperature is elevated to, the inductor pushrod movement also drives valve opening, makes the part cooling liquid enter the major cycle heat radiation.Along with engine temperature continues to raise, valve continues to open, and coolant rate strengthens, and heat radiation is strengthened, and when main valve reached full-gear, it is maximum that the flow of major cycle reaches, and the cooling system heat dissipation potential reaches capacity, and engine temperature begins to descend.Decline along with engine temperature; the inductor push rod begins to fall after rise under the effect of big spring, and main valve is closed gradually, and the coolant rate by major cycle is also along with reducing; the motor cooling rate is slack-off; when engine temperature continued to reduce, push rod continued to fall after rise, closes fully until main valve; dynamic adjustments by a period of time; engine temperature is fluctuation up and down in certain temperature range, can be not too high can be not low excessively yet, thereby play the purpose of protection motor.

But, when the straight-through type thermoregulator of conventional construction was not opened, the thermoregulator main valve was subjected to the impact of one-sided hydraulic pressure, just opened temperature when above when water temperature reaches thermoregulator, main valve is opened, the suffered one-sided pressure of main valve obtains abrupt release, and cooling liquid is flowed through after radiator carries out major cycle, and water temperature reduces, the main valve opening degree reduces, suffered one-sided pressure can increase again, in this course, can form bigger fluctuating temperature.When the power of motor increased, fluctuating range also can acutely increase, and therefore, the straight-through type thermoregulator of conventional construction can not adapt to the requirement that engine power increases gradually.

The model utility content

The purpose of this utility model is in order to overcome the unbalanced problem of above-mentioned straight-through type thermoregulator hydraulic pressure, a kind of pressure balance type thermoregulator at pressure balance lower valve energy easy motion is provided, make it can not only eliminate flow oscillation, and be easier to realize the water temperature balance, the engine water temperature fluctuating range is significantly reduced, reach the purpose that improves fuel economy and reduce discharging.

The purpose of this utility model realizes in the following manner: the pressure balance type thermoregulator, comprise inductor 9, valve seat 7, valve 6, big spring 10, little spring 3, support 11 and ram seat 2, and it is characterized in that described valve seat is made of base plate and side plate; Described side plate is a conical shell, and its big end and base plate periphery join, and the outer surface of small end and tubular valve matches; The upper end of valve is an open-mouth end, and it is corresponding with the sealed step in the valve seat base plate, and the lower end of valve is provided with the opening that supplies water and pass through, and valve links to each other with inductor; Be provided with the through hole that supplies water and pass through between sealed step in the valve seat base plate and the periphery; Described ram seat is a cylindrical body, and the through hole of it and valve seat base plate central authorities matches, and is respectively equipped with upper and lower spacing device in two up and down in ram seat, and little spring is arranged between ram seat lower caging device and the valve seat base plate center through hole end face; Push rod in the described inductor is fixed in the ram seat; Described support 11 passes the lower end of valve, and support 11 upper ends are connected with ram seat, and the lower end is positioned at the inductor below, and is provided with the big spring location hook; Described big spring is arranged between the big spring location hook and valve of support 11 lower ends.

In such scheme, described valve seat side plate is preferably divergent-cone wall, and described valve is preferably cylindrical drum, and the position that matches at the divergent-cone wall small end and the valve of valve seat side plate is provided with the water seal circle.

In such scheme, described valve seat can be coaxial with valve.

In such scheme, the lower end of described tubular valve can be open-mouth end, and inductor links to each other with the lower end of valve by stiffening rib.

In such scheme, the lower end of described tubular valve is flat mouthful of end.

Pressure balance type thermoregulator described in the utility model is installed in engine-cooling system water inlet or water outlet, and mounting type is seen Fig. 3.When water temperature was low, tubular valve upper-end surface and valve seat closed up, and major cycle is closed, at this moment the hydraulic pressure of self bearing fierceness of tubular valve; When water temperature was high, separated with valve seat tubular valve upper-end surface, and major cycle is opened, and water directly flows to major cycle through valve seat from tubular valve hollow position, and the flow process flow resistance is less.

The utility model utilizes tubular valve self internal force to bear the fierce hydraulic pressure that changes, thereby realized the valve easy motion under the pressure balance, not only eliminated flow oscillation, and be easier to realize the water temperature balance, the engine water temperature fluctuating range is significantly reduced, reach the purpose that improves fuel economy and reduce discharging.

Description of drawings

Schematic representation when Fig. 1 does not open for traditional straight-through type thermoregulator main valve.

Schematic representation when Fig. 2 opens for traditional straight-through type thermoregulator main valve.

Fig. 3 is a fundamental diagram of the present utility model, wherein → and be the short circle loop,

Be the major cycle loop.

Fig. 4 is a pressure balance type thermoregulator main valve closed condition schematic representation described in the utility model.

Fig. 5 is a pressure balance type thermoregulator main valve opening state schematic representation described in the utility model.

Embodiment

The described pressure balance type thermoregulator 2 of present embodiment referring to Fig. 4, Fig. 5, comprises inductor 2-9, valve seat, valve 2-6, big spring 2-10, little spring 2-3, support 2-11 and ram seat 2-2, and described valve seat is made of base plate 2-12 and side plate 2-7; Described side plate 2-7 is a divergent-cone wall, and its big end and base plate 2-12 periphery join, and the outer surface of small end and tubular valve 2-6 matches; The upper end of valve 2-6 is an open-mouth end, and it is corresponding with sealed step 2-13 among the valve seat base plate 2-12, the flat mouthful end of the lower end of valve 2-6 for short circle effluent pipe mouth 3 being closed, and be provided with the opening that supplies water by the valve hollow part; Described inductor 2-9 links to each other with the lower end of valve by stiffening rib 2-14; Be provided with the through hole 2-15 that supplies water and pass through between sealed step 2-13 in valve seat base plate 2-12 and the periphery; Described ram seat 2-2 is a cylindrical body, and the through hole of it and valve seat base plate 2-12 central authorities matches, and is respectively equipped with upper and lower spacing device in two up and down at ram seat 2-2, and the upper limit device is back-up ring 2-1, and lower caging device is the convex edge that is positioned at the ram seat lower end.Little spring 2-3 is arranged between ram seat lower caging device and the valve seat base plate 2-12 center through hole end face; Push rod among the described inductor 2-9 is fixed among the ram seat 2-2; Described support 2-11 passes the lower end of valve 2-6, and support 2-11 upper end is connected with ram seat 2-2, and the lower end is positioned at inductor 2-9 below, and is provided with big spring location hook 2-16; Described big spring 2-10 is arranged between the big spring location hook 2-16 and valve 2-6 lower end surface of support 2-11 lower end.

Valve seat is installed in major cycle effluent pipe mouth 1 place, seals with seal ring 2-4 between its valve seat base plate 2-12 periphery and the major cycle effluent pipe mouth 1.The mouth of pipe of the corresponding intake pipe 10 in the lower end of valve 2-6 can be closed intake pipe 10 and short circle effluent pipe mouth 3.

Referring to Fig. 3, Fig. 4 and Fig. 5, when engine temperature is not high, the push rod of inductor 2-9 falls after rise under the effect of big spring 2-10, and major cycle is closed in the sealed step 2-13 sealing among valve 2-6 upper end and the valve seat base plate 2-12, simultaneously, valve 2-6 leaves the lower end mouth of pipe of intake pipe 10, opens short circle, and cooling water flows out from water pump 6, flow into machine cooler 4 through intake pipe 5 and short circle effluent pipe mouth 3, the water that is cooled flows back to water pump 6 by short circle return pipe 5; When engine temperature is higher, the pushrod movement of inductor 2-9 and the sealed step 2-13 that drives among valve 2-6 upper end and the valve seat base plate 2-12 open, open major cycle, simultaneously, valve 2-6 lower end contacts with the mouth of pipe of intake pipe 10, closes short circle, the high-temperature water that comes out from water pump 6 thermoregulator 2 of flowing through, and, under the cooling of fan 9 and radiator 8, after lowering the temperature rapidly, high-temperature water flows back to water pump 6 by major cycle return pipe 7 by major cycle effluent pipe mouth 1 inflow radiator 8.Generally, pressure balance type thermoregulator 2 is controlled the motor cooling rate according to the temperature of motor in the mode of control cooling water flow.

As can be seen from Figure 5, higher when engine temperature, during pressure balance type thermoregulator 2 valve openings, cooling liquid evenly flows out from thermoregulator tubular valve hollow position 360 degree, and therefore, the cooling system flow resistance is little.

Claims

1, pressure balance type thermoregulator comprises inductor, valve seat, valve, big spring, little spring, support, push rod and ram seat, it is characterized in that described valve seat is made of base plate and side plate; Described side plate is a conical shell, and its big end and base plate periphery join, and the outer surface of small end and tubular valve matches; The upper end of valve is an open-mouth end, and it is corresponding with the sealed step in the valve seat base plate, and the lower end of valve is provided with the opening that supplies water and pass through, and valve links to each other with inductor; Be provided with the through hole that supplies water and pass through between sealed step in the valve seat base plate and the periphery; Described ram seat is a cylindrical body, and the through hole of it and valve seat base plate central authorities matches, and is respectively equipped with upper and lower spacing device in two up and down in ram seat, and little spring is arranged between ram seat lower caging device and the valve seat base plate center through hole end face; Push rod in the described inductor is fixed in the ram seat; Described support passes the lower end of valve, and the support upper end is connected with ram seat, and the lower end is positioned at the inductor below, and is provided with the big spring location hook; Described big spring is arranged between the big spring location hook and valve of support lower end.

2, pressure balance type thermoregulator according to claim 1 is characterized in that described valve seat side plate is a divergent-cone wall, and described valve is a cylindrical drum, and the position that matches at the divergent-cone wall small end and the valve of valve seat side plate is provided with the water seal circle.

3, pressure balance type thermoregulator according to claim 1 is characterized in that described valve seat and valve are coaxial.

4, pressure balance type thermoregulator according to claim 1, the lower end that it is characterized in that described tubular valve is an open-mouth end, inductor links to each other with the lower end of valve by stiffening rib.

5,, it is characterized in that the lower end of described tubular valve is flat mouthful of end according to the described pressure balance type thermoregulator of arbitrary claim in the claim 1 to 4.