摘要:
For those spray applications that use a fluidic oscillator of the type that generates a spray by having a pressurized liquid flow through the oscillator and exhaust into a surrounding environment, and where such an oscillator has a boundary surface which has fabricated into it a channel in the form of what is referred to herein as fluidic circuit, an improved enclosure for this oscillator includes: a body having an interior and an exterior surface, wherein a portion of this interior surface is configured to attach to the oscillator boundary surface so as to form with the oscillator's channel an enclosed pathway through which the to-be-sprayed liquid may flow, and wherein a segment of this interior surface is configured so as to yield specified properties of the resulting spray.
摘要:
An external lens washing system has an aiming fixture configured to support and constrain an external lens which is exposed to the elements and apt to become soiled with debris. A nozzle assembly is configured to be supported and aimed toward the external lens by the aiming fixture and has at least one laterally offset washing nozzle projecting from the aiming fixture to a spray washing fluid toward the external lens surface, spraying at a shallow, glancing spray aiming angle to impinge upon and wash the lens external surface. Optionally, an integrated image sensor and lens washing assembly is configured for use with a remote control method for cleaning an exterior objective lens surface and includes a sealed image sensor housing assembly including an integral, remotely controllable lens cleaning system with an optimized configuration for aiming one or more cleansing sprays from one or more laterally offset fluidic oscillators.
摘要:
An improved fluidic device that operates on a pressurized liquid flowing through it at a specified flow rate to generate an oscillating spray of liquid droplets having desired properties (e.g., average spatial distribution, size, velocity, frequency and wavelength of liquid droplets at a defined distance in front of the device) includes: (a) a plurality of fluidic oscillators, each having a channel that is part of a fluidic circuit for inducing oscillations in the pressurized liquid that flows through the oscillator, (b) a housing having an exterior surface that includes a front face with a center-point and a rear face, (c) a plurality of passages, each of which extends through the housing and intersects with its front face to define an outlet, with each passages configured to allow for the insertion of one of the plurality of fluidic oscillators into each of the plurality of passages, and (d) a geometrical arrangement of these outlets in the housing front face that is chosen so as to achieve the desired properties of the oscillating spray when the device is operating at its specified flow rate.
摘要:
A fluidic insert that receives fluid under pressure from a fluid inlet tube and generates a specified spatial distribution of the fluid exiting the insert includes: (1) a body member having top, bottom, front and rear outer surfaces, (2) top and bottom fluidic circuits located, respectively, at least partially within the member's top and bottom surfaces, wherein each of these circuits has at least one power nozzle, an interaction chamber, and an outlet whose exit lies within the member front surface, (3) the bottom fluidic circuit having a portion of its surface area located upstream of the power nozzle and adapted so that it can mate with a fluid inlet tube that supplies fluid to the insert, and (4) an inter-circuit flow passage that allows fluid to flow from the bottom fluid circuit to the top fluid circuit, the bottom end of this passage located such that it is downstream of the point where the inlet tube mates with the bottom circuit and upstream of the bottom circuit's power nozzle, with the top end of this passage located upstream of the top circuit's power nozzle.
摘要:
An external lens washing system has an aiming fixture configured to support and constrain an external lens which is exposed to the elements and apt to become soiled with debris. A nozzle assembly is configured to be supported and aimed toward the external lens by the aiming fixture and has at least one laterally offset washing nozzle projecting from the aiming fixture to a spray washing fluid toward the external lens surface, spraying at a shallow, glancing spray aiming angle to impinge upon and wash the lens external surface. Optionally, an integrated image sensor and lens washing assembly is configured for use with a remote control method for cleaning an exterior objective lens surface and includes a sealed image sensor housing assembly including an integral, remotely controllable lens cleaning system with an optimized configuration for aiming one or more cleansing sprays from one or more laterally offset fluidic oscillators.
摘要:
An external lens washing system has an aiming fixture configured to support and constrain an external lens which is exposed to the elements and apt to become soiled with debris. A nozzle assembly is configured to be supported and aimed toward the external lens by the aiming fixture and has at least one laterally offset washing nozzle projecting from the aiming fixture to a spray washing fluid toward the external lens surface, spraying at a shallow, glancing spray aiming angle to impinge upon and wash the lens external surface. Optionally, an integrated image sensor and lens washing assembly is configured for use with a remote control method for cleaning an exterior objective lens surface and includes a sealed image sensor housing assembly including an integral, remotely controllable lens cleaning system with an optimized configuration for aiming one or more cleansing sprays from one or more laterally offset fluidic oscillators.
摘要:
An improved fluidic device that operates on a pressurized liquid flowing through it at a specified flow rate to generate an oscillating spray of liquid droplets having desired properties (e.g., average spatial distribution, size, velocity, frequency and wavelength of liquid droplets at a defined distance in front of the device) includes: (a) a plurality of fluidic oscillators, each having a channel that is part of a fluidic circuit for inducing oscillations in the pressurized liquid that flows through the oscillator, (b) a housing having an exterior surface that includes a front face with a center-point and a rear face, (c) a plurality of passages, each of which extends through the housing and intersects with its front face to define an outlet, with each passages configured to allow for the insertion of one of the plurality of fluidic oscillators into each of the plurality of passages, and (d) a geometrical arrangement of these outlets in the housing front face that is chosen so as to achieve the desired properties of the oscillating spray when the device is operating at its specified flow rate.
摘要:
For those spray applications that use a fluidic oscillator of the type that generates a spray by having a pressurized liquid flow through the oscillator and exhaust into a surrounding environment, and where such an oscillator has a boundary surface which has fabricated into it a channel in the form of what is referred to herein as fluidic circuit, an improved enclosure for this oscillator includes: a body having an interior and an exterior surface, wherein a portion of this interior surface is configured to attach to the oscillator boundary surface so as to form with the oscillator's channel an enclosed pathway through which the to-be-sprayed liquid may flow, and wherein a segment of this interior surface is configured so as to yield specified properties of the resulting spray.