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Pneumatic supply via a valve cover

A technology of valve main body and supply channel, applied in the direction of valve operation/release device, valve device, valve details, etc., which can solve the problems of increasing the overall size of portable equipment, the risk of leakage, the risk of poor control, and large volume

Pending Publication Date: 2020-05-29
POMTAVA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the contrary, this system has in particular the disadvantage of being bulky, provided with machined holes and drilled blocks, which increase the overall size of the portable device and the risk of leakage, which leads to poor control risks

Method used

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  • Pneumatic supply via a valve cover
  • Pneumatic supply via a valve cover
  • Pneumatic supply via a valve cover

Examples

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Embodiment Construction

[0052] figure 1 A device for spraying a paint product in liquid form according to a first embodiment of the invention is shown in an actuated position.

[0053] Apparatus for spraying a paint product in liquid form includes a spraying device for spraying a liquid product, also referred to as a sprayer 290 (in Image 6 shown in ), and a valve 10 for controlling the flow of liquid product towards the spraying device.

[0054] The valve 10 is actuated by a control fluid 50, the flow of which and the action of the control fluid on the valve's piston 20 is schematically shown by arrows. The piston 20 is arranged to be moved by the control fluid 50 between a top dead center of the piston 20 on the needle 25 side and a bottom dead center of the piston 20 on the opposite side.

[0055]The valve 10 further comprises a needle 25 provided with a needle seat 26 and secured to the piston 20 . The needle 25 is arranged to release or block the passage of the liquid product towards the spr...

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Abstract

A device for spraying a coating product in liquid form, comprising: a control valve (10) for controlling the flow of the liquid product, comprising: - a piston (20), secured to a needle valve (25) arranged to open or close a liquid product passage, a valve body (11) comprising a housing (42) arranged to accommodate the piston (20), and comprising a supply connector (19) for supplying control fluid(50) arranged on a bottom dead centre side of the piston (20), the device being characterised in that the valve body (11) is monolithic and further comprises at least one supply channel (12, 13) forsupplying control fluid (50) housed in a side wall of the valve body (11) and at least a longitudinal portion of which extends along a part of the housing (42) from the supply connector (19) side towards the top dead centre side of the piston (20).

Description

technical field [0001] The present invention generally relates to an apparatus for spraying a paint product in liquid form, and to a method for manufacturing such an apparatus. Background technique [0002] Apparatus for spraying liquid paints are known in the prior art. [0003] Document FR2674773 discloses a compressed air gun. On the contrary, this system has notably the disadvantage of being bulky, provided with machined holes and drilled blocks, which increase the overall size of the portable device and the risk of leakage, resulting in poor control risks. Furthermore, document WO 2013 / 071398 discloses a sprayer for spraying elastomeric materials. Contents of the invention [0004] The object of the present invention is to solve the disadvantages of the above-mentioned documents of prior art and, in particular, first of all, it is the object of the present invention to propose a compact and efficient device for spraying paint products in liquid form, which risk of l...

Claims

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Application Information

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IPC IPC(8): B05B1/30B05C5/02
CPCB05B1/306B33Y80/00B33Y10/00B05B15/65B05B7/0815B05B13/0431B05C5/0237B05B7/1263F16K31/363
Inventor 欧菲米安·马尚德阿洛伊斯·尼科莱特
Owner POMTAVA