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Spool valve

A spool valve and valve core technology, which is applied in valve details, multi-port valves, valve devices, etc., can solve the problems such as the inability to realize the miniaturization and light weight of the spool valve, and the increase in the length and size of the spool valve and its control system.

Active Publication Date: 2014-06-18
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the axial length dimension of the spool valve and its control system becomes large, and it is impossible to achieve sufficient miniaturization and weight reduction of the spool valve and a vehicle transmission control device equipped with the spool valve.

Method used

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Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0059] figure 1 It is a figure showing the spool included in the spool valve according to the first embodiment of the present invention, (a) is a view viewed from the front side in the axial direction, and (b) is a cross section of (a) viewed along the X-X arrow Figure, (c) is a perspective view. in addition, figure 2 with image 3 is a diagram showing a spool valve, figure 2 (a) is with figure 1 The sectional view corresponding to the view observed along the X-X arrow of (a), figure 2 (b) is a cross-sectional view corresponding to a view along the Y-Y arrow. in addition, image 3 (a) is with figure 2 The side sectional view of (a) corresponding to the view observed along the Z1-Z1 arrow, image 3 (b) is a side sectional view corresponding to the view viewed along the Z2-Z2 arrow, image 3 (c) is a side sectional view corresponding to the view seen along the Z3-Z3 arrow. The spool valve 1 shown in these figures has: a valve case (control body) 5 having a substant...

no. 2 Embodiment approach

[0077] Next, a second embodiment of the present invention will be described. In addition, in the description of the second embodiment and the corresponding drawings, the same or equivalent components as those of the first embodiment are assigned the same reference numerals, and detailed description of these components will be omitted below. In addition, matters other than the matters described below are the same as those of the first embodiment. This also applies to other embodiments.

[0078] Figure 7 It is a figure which shows the spool valve 1-2 of 2nd Embodiment of this invention, (a) is a perspective view of the valve body 30-2, (b) is the vicinity of the rear end surface 30b of the spool valve 30-2 viewed from the axial direction Sectional view. In the spool valve 1 according to the first embodiment, as the rotation prevention mechanism of the valve body 30 , there are ribs 38 provided on the outer peripheral side surface 30 c of the valve body 30 and ribs 38 provide...

no. 3 Embodiment approach

[0081] Next, a third embodiment of the present invention will be described. Figure 8 It is a figure which shows the spool valve 1-3 which concerns on the 3rd Embodiment of this invention, (a) is a perspective view of the valve body 30-3, (b) is the vicinity of the rear end surface 30b of the spool valve 30-3 viewed from the axial direction Sectional view. In the spool valve 1-3 of this embodiment, as a rotation preventing mechanism for the valve body 30-3, a rotation preventing portion 45 whose outer peripheral surface has a quadrangular cross-sectional shape is provided near the rear end surface 30b of the valve body 30-3. . In addition, a portion corresponding to the anti-rotation portion 45 of the spool hole 10 has an accommodating portion 46 having a quadrangular inner peripheral shape along the outer peripheral shape of the anti-rotation portion 45 . The rotation prevention part 45 of the valve body 30 is accommodated in the accommodation part 46 of the valve body hole...

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Abstract

The invention provides a spool valve. By the use of the spool valve, a plurality of oilways can be switched and a length size of a valve plug on an axial direction (a sliding direction) can be shortened to some extent. The spool valve comprises a first oil passage (21) containing a first to a third hole port (A1 to A3) of an opening of a valve plug hole (10) and a second oil passage (22) containing a fourth to a sixth hole ports (B1 to B3), a first to a fourth oil grooves (31 to 34) circumferntially arranged of the same position in an axial direction where the valve plug (30) is on the external lateral surface (30c), a first communication path (36) in the vavle plug (30) and passing from the first oil groove (31) to the third oil groove (33) and a second communication path (37) in the vavle core and passing from the second oil groove (32) to the fourth oil groove (34). The spool vavle is structured in a way the the vavle plug (30) slides in the vavle plug hole (10), so switch between the second hole port (A1) and the third hole port (A3) and the third oil groove (33) and switch between the fifth hole port (B2) and the sixth hole port (B3) and the fourth oil groove (34) can be conducted.

Description

technical field [0001] The present invention relates to a slide valve with a spool, wherein the spool is inserted into a spool hole of a valve box in a freely slidable manner. Background technique [0002] There is a spool valve in which a spool is slidably disposed in a spool hole of a valve box. Spool valves with this structure have been used in various applications such as pressure control valves and flow control valves. Such a conventionally known spool valve includes a valve housing having a substantially cylindrical spool hole, a substantially cylindrical spool inserted into the spool hole, and a spring biasing the spool in the spool hole. The spring is disposed on one end of the valve core in the valve core hole, and biases the valve core toward the other end in the axial direction. In addition, an oil passage having a plurality of orifices opened on the inner peripheral side surface of the spool hole is formed in the valve case. Each orifice of the oil passage com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K27/04
CPCF16K11/0708F16K11/0716F16K11/04F16K27/041Y10T137/86775Y10T137/86445
Inventor 渡边贵英水口征彦
Owner HONDA MOTOR CO LTD
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