Spray device

The spray device allows for individual and collective control of nozzles within a compact design, addressing the limitation of existing devices by enabling versatile cavity type adaptation with enhanced reliability and efficiency.

DE102011087611B4Active Publication Date: 2026-05-21BAYERISCHE MOTOREN WERKE AG
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
BAYERISCHE MOTOREN WERKE AG
Filing Date
2011-12-02
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing spray devices for cavity preservation in motor vehicles are limited to specific cavity types and require cumbersome modifications or replacements when used with different cavity types, lacking a structurally simple and interference-resistant spray nozzle control.

Method used

Each spray nozzle is individually and collectively controllable via internal coupling to its associated control valve, integrated into a robot-side interface without external connecting lines, with a compact design featuring a nozzle holder and piston actuator that simplifies and enhances control reliability.

Benefits of technology

Enables seamless adaptation to various cavity types with reduced downtime and improved reliability, ensuring efficient and reliable spray medium control, particularly during cleaning and reattachment processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

Spray device with several spray nozzles (1a, 1b) adjustable between a standby position and a working position through which the spray medium flows, wherein each individual spray nozzle (1a, 1b) is provided with a separately reversible nozzle drive (7) in the form of a pneumatic actuating piston drive and a control valve (11, 22, 24) internally coupled to the nozzle drive (7), which is locked in the standby position of the nozzle drive (7) and releases a spray medium supply to the spray nozzle (1a, 1b) in the working position, and the control valve (11, 22, 24) has housing outlets (22) and a piston rod (11) with control openings (24), wherein the control valves (11, 22, 24) are each mechanically coupled to the associated nozzle drive (7), wherein the spray nozzles (1a, 1b) are each mounted on an adjustable drive, which serves as a control slide for the respective control valve (11, 22, 24) designed nozzle holders are arranged,wherein a linear actuator with a control piston (10) and a piston rod (11) acting as a nozzle holder, through which an inner channel (13) leading to the spray nozzle (1a, 1b) is provided, which interacts with at least the housing outlet (22) of a spray medium supply channel (20) common to the spray nozzles (1a, 1b) and unlocks them towards the inner channel (13) in the working position of the control piston (10) and locks them in the standby position of the control piston (10).
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