CN203560705U - Control valve system for forward and reverse oil absorption and drainage of transfer case lube oil pump - Google Patents
Control valve system for forward and reverse oil absorption and drainage of transfer case lube oil pump Download PDFInfo
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- CN203560705U CN203560705U CN201320600323.5U CN201320600323U CN203560705U CN 203560705 U CN203560705 U CN 203560705U CN 201320600323 U CN201320600323 U CN 201320600323U CN 203560705 U CN203560705 U CN 203560705U
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- way valve
- oil
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- way
- valve
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Abstract
The utility model discloses a control valve system for forward and reverse oil absorption and drainage of a transfer case lube oil pump. The control valve system comprises a T opening, a P opening and a two way pump; a first one-way valve, a second one-way valve, a third one-way valve and a fourth one-way valve are arranged between the T opening and the P opening; the oil inlet ends of the first one-way valve and the second one-way valve are communicated with the T opening; the oil outlet end of the first one-way valve is communicated with a B oil opening of the two way pump; an A oil opening of the two way pump is communicated with the oil inlet end of the fourth one-way valve; the oil outlet end of the fourth one-way valve is communicated with the P opening; the oil outlet end of the second one-way valve is communicated with the A oil opening of the two way pump; the B oil opening of the two way pump is communicated with the oil inlet end of the third one-way valve; the oil outlet end of the third one-way valve is communicated with the P opening; the oil inlet end of the third one-way valve is communicated with the oil outlet end of the first one-way valve; the oil inlet end of the fourth one-way valve is communicated with the oil outlet end of the second one-way valve; the first one-way valve and the second one-way valve are mounted without reset springs; valve elements of the first one-way valve and the second one-way valve are spherical; the third one-way valve and the fourth one-way valve are provided with reset springs; the control valve system further comprises an overflow valve and an O opening; the oil inlet end of the overflow valve is communicated with the P opening; the oil outlet end of the overflow valve is communicated with the O opening.
Description
Technical field
The utility model relates to a kind of control valve system for the forward and reverse suction oil of transfer case lubricating pump, belongs to hydraulic control field.
Background technique
In transfer case lubricant oil radiation system, when transfer case input shaft forward and backward, flowing to of lubricant oil fluid in hydraulic oil radiator pipeline need be guaranteed to enter constant, the loose device of the too high damage oil of system oil pressure will be avoided simultaneously.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of control valve system for the forward and reverse suction oil of transfer case lubricating pump, need guarantee to enter flowing to of lubricant oil fluid in hydraulic oil radiator pipeline constant, integrated pressure-limit valve function of while, valve member crushing is little, and switching is flexible, pressure is controlled stable.
The utility model is for the control valve system of the forward and reverse suction oil of transfer case lubricating pump, comprise the T mouth being communicated with fuel tank, the P mouth being communicated with the loose device of oil and the two-way pump being driven by transfer case, between described T mouth and P mouth, be provided with first, second, the 3rd, the 4th one-way valve, described the first one-way valve, the oil inlet end of the second one-way valve is connected with T mouth by the road, the oil outlet end of the first one-way valve is connected with the B hydraulic fluid port of two-way pump by the road, the A hydraulic fluid port of two-way pump is communicated with the oil inlet end of the 4th one-way valve by the road, the oil outlet end of described the 4th one-way valve is communicated with P mouth by the road, the oil outlet end of described the second one-way valve is connected with the A hydraulic fluid port of two-way pump by the road, the B hydraulic fluid port of two-way pump is communicated with the oil inlet end of the 3rd one-way valve by the road, the oil outlet end of described the 3rd one-way valve is communicated with P mouth by the road, the oil inlet end of described the 3rd one-way valve is communicated with the oil outlet end of the first one-way valve by the road, the oil inlet end of described the 4th one-way valve is communicated with the oil outlet end of the second one-way valve by the road, described first, the second one-way valve is without Returnning spring at right angle setting, first, the spool of the second one-way valve is spherical, the described the 3rd, the 4th one-way valve is with Returnning spring, the O mouth that also comprises relief valve and be communicated with fuel tank, the oil inlet end of described relief valve is communicated with P mouth by the road, the oil outlet end of relief valve is communicated with O mouth by the road.
The utility model is for the control valve system of the forward and reverse suction oil of transfer case lubricating pump, the cross section, duct of wherein said first, second one-way valve is petal, the interior concave point place diameter of a circle of petal is less than first, second one-way valve core diameter, and the outer salient point place diameter of a circle of petal is greater than first, second one-way valve core diameter.
The utility model is that for the control valve system difference from prior art of the forward and reverse suction oil of transfer case lubricating pump the utility model arranges first for the control valve system of the forward and reverse suction oil of transfer case lubricating pump between T mouth and P mouth, second, the 3rd, the 4th one-way valve forms liquid bridge, first, the second one-way valve adopts without Returnning spring at right angle setting, utilize the negative pressure that two-way pump oil suction produces to open, and rely on gravity reduction, saved Returnning spring, the oil inlet end that the 3rd one-way valve is set is communicated with the oil outlet end of the first one-way valve, the oil inlet end of the 4th one-way valve is communicated with the oil outlet end of the second one-way valve, when two-way pump oil suction generation negative pressure is by the first or second one-way valve opens, negative pressure further assists Returnning spring that the 3rd or the 4th one-way valve is closed firmly, when transfer case clockwise and anticlockwise, two groups of one-way valves can be stable switching cooperation guarantee the flow direction of lubricant oil, relief valve is set simultaneously, its oil inlet end is communicated with P mouth, oil outlet end is communicated with O mouth, so that when P mouth place oil pressure is too high, can discharge and flow back to fuel tank through O mouth through relief valve, the utility model is for the control valve system of the forward and reverse suction oil of transfer case lubricating pump, valve member crushing is little, switch flexibly, pressure is controlled stable.
Below in conjunction with accompanying drawing, the control valve system for the forward and reverse suction oil of transfer case lubricating pump of the present utility model is described further.
Accompanying drawing explanation
Fig. 1 is that the utility model is for the schematic diagram of the control valve system of the forward and reverse suction oil of transfer case lubricating pump;
Fig. 2 is that the utility model is for the control valve system plan view of the forward and reverse suction oil of transfer case lubricating pump, not shown two-way pump;
Fig. 3 is along the sectional view of C-C direction in Fig. 2;
Fig. 4 is along the sectional view of D-D direction in Fig. 2;
Fig. 5 is along the sectional view of E-E direction in Fig. 2.
Embodiment
As shown in Fig. 2,3,5, present embodiment comprises that for the control valve system of the forward and reverse suction oil of transfer case lubricating pump the T mouth being communicated with fuel tank, the P mouth being communicated with the loose device of oil and the two-way pump 1(being driven by transfer case are shown in that Fig. 1 illustrates), between T mouth and P mouth, be provided with first, second, third, fourth one- way valve 2,3,4,5.
Two-way pump 1 has A, two hydraulic fluid ports of B, interchangeable is into and out of hydraulic fluid port, as shown in Figure 1, the oil inlet end of the first one-way valve 2 and the second one-way valve 3 is all connected with T mouth by the road, the oil outlet end of the first one-way valve 2 is connected with the B hydraulic fluid port of two-way pump 1 by the road, the A hydraulic fluid port of two-way pump 1 is communicated with the oil inlet end of the 4th one-way valve 5 by the road, and the oil outlet end of the 4th one-way valve 5 is communicated with P mouth by the road; The oil outlet end of the second one-way valve 3 is connected with the A hydraulic fluid port of two-way pump 1 by the road, and the B hydraulic fluid port of two-way pump 1 is communicated with the oil inlet end of the 3rd one-way valve 4 by the road, and the oil outlet end of the 3rd one-way valve 4 is communicated with P mouth by the road; The oil inlet end of the 3rd one-way valve 4 is communicated with the oil outlet end of the first one-way valve 2 by the road, and the oil inlet end of the 4th one-way valve 5 is communicated with the oil outlet end of the second one-way valve 3 by the road.
First, second one- way valve 2,3 is without Returnning spring at right angle setting, and the spool of first, second one-way valve is spherical, and first and second one-way valve utilizes gravity reduction, and the 3rd, the 4th one-way valve 4,5 is with Returnning spring; As shown in Figure 5,7,8 cross sections, duct of first, second one- way valve 2,3 are petal, the interior concave point place diameter of a circle of petal is less than first, second one-way valve core diameter, the outer salient point place diameter of a circle of petal is greater than first, second one-way valve core diameter, so, this duct both can guarantee effectively spacing to spool, can also guarantee the area that passes through of fluid.
As shown in Figure 4, the O mouth that present embodiment also comprises relief valve 6 and is communicated with fuel tank for the control valve system of the forward and reverse suction oil of transfer case lubricating pump, the oil inlet end of relief valve 6 is communicated with P mouth by the road, and the oil outlet end of relief valve 6 is communicated with O mouth by the road.
In conjunction with Fig. 1, the utility model is below described for the working procedure of the control valve system of the forward and reverse suction oil of transfer case lubricating pump:
When transfer case axle turns clockwise, drive two-way pump 1 work oil suction, the negative pressure producing is opened the first one-way valve 2, also further assurance the 3rd one-way valve 4 is closed simultaneously, oil flow into the B hydraulic fluid port of two-way pump through the first one-way valve 2 from T mouth, from the A hydraulic fluid port of two-way pump, flow out to the oil inlet end of the 4th one-way valve 5, oil pressure overcomes the Returnning spring resistance of the 4th one-way valve 5 opens the 4th one-way valve 5, and oil flows to P mouth to the loose device fuel feeding of oil through the 4th one-way valve 5.
When transfer case axle turns counterclockwise, drive two-way pump 1 work oil suction, the negative pressure producing is opened the second one-way valve 3, also further assurance the 4th one-way valve 5 is closed simultaneously, oil flow into the A hydraulic fluid port of two-way pump from T bore the second one-way valve 3, through the B of two-way pump hydraulic fluid port, flow out to the oil inlet end of the 3rd one-way valve 4, oil pressure overcomes the Returnning spring resistance of the 3rd one-way valve 4 opens the 3rd one-way valve 4, and oil flows to P mouth to the loose device fuel feeding of oil through the 3rd one-way valve 4.
When the pressure of P mouth working oil path reaches certain value, oil flows back to fuel tank by relief valve 6 from O.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (2)
1. the control valve system for the forward and reverse suction oil of transfer case lubricating pump, it is characterized in that: comprise the T mouth being communicated with fuel tank, the P mouth being communicated with the loose device of oil and the two-way pump (1) being driven by transfer case, between described T mouth and P mouth, be provided with first, second, the 3rd, the 4th one-way valve (2, 3, 4, 5), described the first one-way valve (2), the oil inlet end of the second one-way valve (3) is connected with T mouth by the road, the oil outlet end of the first one-way valve (2) is connected with the B hydraulic fluid port of two-way pump (1) by the road, the A hydraulic fluid port of two-way pump (1) is communicated with the oil inlet end of the 4th one-way valve (5) by the road, the oil outlet end of described the 4th one-way valve (5) is communicated with P mouth by the road, the oil outlet end of described the second one-way valve (3) is connected with the A hydraulic fluid port of two-way pump (1) by the road, the B hydraulic fluid port of two-way pump (1) is communicated with the oil inlet end of the 3rd one-way valve (4) by the road, the oil outlet end of described the 3rd one-way valve (4) is communicated with P mouth by the road, the oil inlet end of described the 3rd one-way valve (4) is communicated with the oil outlet end of the first one-way valve (2) by the road, the oil inlet end of described the 4th one-way valve (5) is communicated with the oil outlet end of the second one-way valve (3) by the road, described first, the second one-way valve (2, 3) without Returnning spring at right angle setting, first, the spool of the second one-way valve is spherical, the described the 3rd, the 4th one-way valve (4, 5) with Returnning spring, also comprise relief valve (6) and the O mouth being communicated with fuel tank, the oil inlet end of described relief valve (6) is communicated with P mouth by the road, the oil outlet end of relief valve (6) is communicated with O mouth by the road.
2. the control valve system for the forward and reverse suction oil of transfer case lubricating pump according to claim 1, it is characterized in that: the cross section, duct (7,8) of described first, second one-way valve (2,3) is petal, the interior concave point place diameter of a circle of petal is less than first, second one-way valve core diameter, and the outer salient point place diameter of a circle of petal is greater than first, second one-way valve core diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600323.5U CN203560705U (en) | 2013-09-25 | 2013-09-25 | Control valve system for forward and reverse oil absorption and drainage of transfer case lube oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320600323.5U CN203560705U (en) | 2013-09-25 | 2013-09-25 | Control valve system for forward and reverse oil absorption and drainage of transfer case lube oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560705U true CN203560705U (en) | 2014-04-23 |
Family
ID=50510426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320600323.5U Withdrawn - After Issue CN203560705U (en) | 2013-09-25 | 2013-09-25 | Control valve system for forward and reverse oil absorption and drainage of transfer case lube oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470940A (en) * | 2013-09-25 | 2013-12-25 | 北京航天发射技术研究所 | Control valve system used for absorbing and discharging oil of transfer case lubrication oil pump in forward and reverse directions |
-
2013
- 2013-09-25 CN CN201320600323.5U patent/CN203560705U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470940A (en) * | 2013-09-25 | 2013-12-25 | 北京航天发射技术研究所 | Control valve system used for absorbing and discharging oil of transfer case lubrication oil pump in forward and reverse directions |
| CN103470940B (en) * | 2013-09-25 | 2015-11-18 | 北京航天发射技术研究所 | For the control valve system of the forward and reverse suction oil of transfer case lubricating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20151118 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |