Liquid Sprayer With Adjustable Volume Chamber for Extended Emission
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Solution Overview
Problem
Existing manual liquid sprayers typically dispense liquid only during the discharge phase of the pumping cycle, failing to provide continuous or semi-continuous emission, which limits their application and efficiency.
Innovation Solution
A liquid sprayer apparatus with an adjustable volume dispensation chamber and a dispensation piston responsive to fluid pressure, allowing extended liquid dispensation by initiating emission when a threshold pressure is reached and ceasing when it drops below a threshold, using a combination of one-way valves and restorative forces to manage fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a manual pump mechanism is used with a fixed volume chamber, then the device structure is simple and inexpensive, but the liquid dispensation time is limited to only the discharge phase of the pump cycle
Solution Approach 1:
The patent applies the dynamics principle by making the dispensation chamber volume adjustable through a movable piston rather than fixed. The piston can be positioned at different locations along the channel, allowing the chamber volume to dynamically change. This enables the chamber to store sufficient liquid for extended dispensation periods while maintaining a relatively simple device structure that does not require separate pressure chambers or complex valving systems.
2Duration of action of moving object
If pressure sprayers with separate pressure chambers and additional valving are used, then continuous spray emission is achieved, but the production cost and device complexity increase
Solution Approach 1:
The patent merges the collection chamber and dispensation chamber into a single integrated chamber that serves both functions at different times. The same chamber collects liquid during the pump discharge phase and then dispenses it during the extended emission period. This eliminates the need for separate pressure chambers and reduces the number of valves required, thereby lowering production costs while achieving continuous spray emission capability.
Solution Approach 2:
The dispensation chamber is designed to perform multiple functions: it acts as a collection chamber during the pump discharge phase and as a dispensation reservoir during the extended emission phase. The movable piston provides universal functionality by enabling the chamber to adapt its volume for different operational modes, reducing the need for dedicated components for each function and simplifying the overall device structure.
3Duration of action of moving object
If the dispensation chamber volume is increased to extend emission time, then the liquid dispensation duration is extended, but the device size and complexity increase
Solution Approach 1:
The patent uses a movable piston to dynamically adjust the dispensation chamber volume based on operational needs. During the collection phase, the piston position allows for a smaller effective volume, and during the dispensation phase, the same mechanism enables a larger effective volume to sustain extended emission. This dynamic adjustment allows the device to achieve long emission durations without permanently increasing the device's overall volume or requiring a permanently large chamber.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables extended liquid dispensation times, potentially twice or thrice the duration of a standard pump cycle discharge phase, allowing continuous or semi-continuous emission without the need for additional valving or pressure chambers, thus enhancing user convenience and reducing production costs.
Implementation Method 1
A one-way discharge valve is provided to permit liquid flow from the dispensation chamber through a second passage in the discharge valve base, wherein the dispensation chamber is fluidly connected to the second passage through the aperture when the discharge valve is open with the sealing portion of the plunger disengaged from the discharge valve seat structure, the plunger being responsive to the fluid pressure in the dispensation chamber
Implementation Method 2
A one-way inlet valve permits liquid flow from the container to the collection chamber. A one-way outlet valve permits liquid flow from the collection chamber to the dispensation chamber through the first passage
Implementation Method 3
An actuator is provided with the spray apparatus for selectively moving the charge piston with respect to the first channel wall against a first restorative force to reduce a collection chamber volume of the collection chamber
Data Source
AI summary
A liquid sprayer apparatus includes a multi-chamber spray mechanism, with at least one chamber being adapted to accumulate pressurized fluid for dispensation over an extended time period. The liquid sprayer apparatus is capable of emitting a liquid spray over a period of time that is substantially greater than a manual pump action applied to the trigger.