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Continuous Fine Spray Non-Aerosol Systems: Pre-Compression Chamber Dynamics Vs. Propellant Gas Systems

# Continuous Fine Spray Non-Aerosol Systems: Pre-Compression Chamber Dynamics vs. Propellant Gas Systems

TL;DR — A continuous plume of fine droplets is a natural property of propellant systems; reproducing it without the gas is a mechanical problem of storing and releasing energy inside the pump's own chamber.

The catalog side is recorded: the fine-mist sprayer family (2 catalog models at 0.13 ml per stroke, 18/410 + 18/415), the trigger sprayer family (19 catalog models, 0.22–1.35 ml per stroke, ±15%), the perfume atomizer family (14 catalog models, 0.05–0.13 ml), and the Pre-Compression feature recorded on trigger models VQ-TS-107D, VQ-TS-107E, and VQ-TS-107L.

The key boundary: no continuous-spray non-aerosol model is recorded in the catalog; the mechanism is a project-level configuration. Propellant systems are outside this program's record; the comparison is industry context, with spray pattern and dosage/output testing as the verification hooks.

Why: A Steady Plume Without the Gas

Propellant-free spray asks the mechanism to do the work of the gas. In propellant systems the dissolved gas provides both the drive and the steady discharge; without it, the energy has to be built and released by the pump's own chamber dynamics.
Continuity is the difference. A conventional pump delivers its output in a sharp stroke; continuous fine spray promises a sustained plume, which is a stricter demand on the pumping platform.
The catalog anchors the pumping families. Fine-mist sprayers, trigger sprayers, and perfume atomizers are recorded in family detail — the reservoirs of known output behavior the topic sits on.
Pre-Compression is a recorded step, but only on three models. The feature exists in the record on trigger models VQ-TS-107D, VQ-TS-107E, and VQ-TS-107L — the closest documented relative of the continuous concept.
The continuous configuration itself is not recorded. Boundary: no continuous-spray non-aerosol model is recorded in the catalog; the mechanism is a project-level configuration, proven through spray pattern and dosage/output testing on the actual fill.

How: The Mechanism Layers

3.1 What continuous non-aerosol spray means

The term names a behavior, not a device: a fine mist that keeps issuing while the user holds the actuation, without a propellant gas in the formula. The design question is where the energy comes from. A single stroke has only so much travel, so a sustained discharge has to draw on energy stored earlier in the stroke or across the pump's internal volumes — which is what pre-compression architecture is for.

3.2 The catalog families that carry the topic

The program registers the pumping families this topic rides on, and their numbers are in-family measurements, not promises about a continuous build:

Fine-mist sprayers — 2 catalog models at 0.13 ml per stroke, on 18/410 and 18/415;
Trigger sprayers — 19 catalog models, measured output across 0.22–1.35 ml per stroke (±15%), with the model record at 1.30 ml per stroke (±15%) on 28/400 and 28/410;
Perfume atomizers — 14 catalog models, recorded output range 0.05–0.13 ml.

These records exist to show the pumping platform spans the needed output range; pairing any family with a continuous arrangement is a project decision that starts from these numbers and ends at the verification hooks.

3.3 Pre-Compression: the recorded feature

The Pre-Compression feature is recorded on trigger models VQ-TS-107D, VQ-TS-107E, and VQ-TS-107L. The feature name describes a general behavior — the discharge path stays closed while the chamber builds pressure, and opens once a threshold is reached, so the release starts at working speed instead of dribbling — but the record is model-level, not family-wide: the feature is on those three trigger models, and every other trigger model carries only its own recorded output.

It is the closest documented relative of the continuous concept, because a delayed, pressure-governed opening is the same mechanism family a sustained discharge would build on. The threshold pressures and opening behavior are not recorded; they are set per project.

3.4 The mechanism route: pre-compression chamber dynamics

The guidance route for a continuous non-aerosol build is chamber dynamics: energy is stored in a pressurized volume during the actuation, and once the threshold opens the discharge, the stored energy sustains the plume while the chamber drains — the continuous behavior comes from the drain curve, not from a gas. Chamber volume, opening threshold, discharge timing, and the valve and pump-core displacement that govern them are all project values; none is published here.

<pre class="language-mermaid"><code>flowchart LR

A[Fine mist family 2 models · 0.13 ml 18/410 + 18/415] –> B[Trigger family 19 models · 0.22–1.35 ml ±15%]

B –> C[Pre-Compression feature VQ-TS-107D · VQ-TS-107E · VQ-TS-107L]

A –> C

C –> D[Continuous non-aerosol mechanism no recorded model project-level configuration]

D –> E{Energy source guidance}

E –>|Pre-compression dynamics| F[Chamber stores energy sustained discharge]

E –>|Propellant systems| G[Outside this program's record industry context]

F –> H[Spray pattern test capability-level]

G –> H

H –> I[Dosage / output test capability-level]

I –> J[Release per project]

</code></pre>

3.5 Propellant systems: the industry contrast

Propellant systems are outside this program's record; the comparison is industry context. Nothing about dissolved gases, can pressures, or vapor-phase discharge is a fact on this catalog — the systems are named here only to explain what the non-aerosol route has to replace: a self-driving, constant-rate delivery. The contrast is drawn for orientation, never as a published parameter.

3.6 Verification: pattern and dose, per project

Two recorded capabilities close the loop. The spray pattern test asks whether the plume holds its geometry through the sustained stroke — continuity is a pattern property as much as a flow property — and the dosage/output test asks whether each stroke still measures what the catalog window promises. Both are capability-level: no pattern size, droplet specification, or tolerance is published, and both run against the project's actual fill and stroke range.

<pre class="language-mermaid"><code>flowchart LR

A[Non-aerosol fine spray continuous output] –> B{Mechanism configured per project}

B –>|Pre-compression dynamics| C[Chamber pressure and stroke per project]

B –>|Propellant systems| D[Industry context not on the record]

C –> E[Spray pattern + dosage on the actual fill]

E –> F[Release per project]