Enclosures and housings
Sequential Hydrogen Distribution Assembly
- Bounding box
- 160.0 × 50.0 × 210.0 mm
- Engine
- Precision B-rep
- Parameters
- 29
- Published
- November 2, 2026
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The prompt
[System Context: Mechanical CAD Assembly, STEP format output, 1:1 scale millimeter units] Generate a complete, integrated 3-component Sequential Hydrogen Gas Distribution Assembly. The assembly must physically demonstrate a passive, pressure-actuated switching mechanism to fill two storage cylinders sequentially without electrical controls. The model must contain three distinct, aligned, and mated bodies: 1. BASE MANIFOLD BLOCK: - A solid rectangular block measuring 160mm length x 50mm width x 30mm height. - Features a 6mm internal horizontal flow channel running through the center length. - One inlet port (12mm outer diameter, 6mm inner bore) on the far-left vertical face. - Two vertical outlet ports (18mm outer diameter, spaced 70mm apart) on the top flat face. - Outlet Port 1 (left) is a direct, open vertical channel to the main flow line. - Outlet Port 2 (right) features a built-in internal stepped shoulder (valve seat, 8mm diameter bore narrowing to 5mm) to house a passive check-valve plunger. 2. TWO INTEGRATED STORAGE CYLINDERS: - Two vertical cylindrical tanks, each with an outer diameter of 45mm and a height of 130mm, positioned side-by-side. - Each cylinder has a bottom neck (18mm diameter) that mates perfectly and flush into the top outlet ports of the Manifold Block. - Cylinder 1 sits on Outlet Port 1 (direct unhindered path). - Cylinder 2 sits on Outlet Port 2 (isolated by the sequential valve seat). 3. PASSIVE PRESSURE-REGULATING CHECK VALVE PLUNGER: - A physical, mechanical valve plunger modeled inside the neck of Outlet Port 2. - The plunger consists of a conical sealing tip (8mm diameter) that rests flush against the stepped seat of Outlet Port 2, a guide shaft (3mm diameter), and a retaining collar. - The design must include a visual gap representing where a mechanical coil spring sits around the shaft to keep the valve closed until a high-pressure threshold is reached. Ensure all three parts are aligned as a single, fully assembled system with hollow internal channels so that a 2D cross-section view clearly displays the sequential fluid-flow paths.
Parameters
| Name | Value | Range |
|---|---|---|
| Block Length | 160 mm | 100 – 300 |
| Block Width | 50 mm | 30 – 100 |
| Block Height | 30 mm | 20 – 60 |
| Flow Channel Diameter | 6 mm | 2 – 10 |
| Inlet Outer Diameter | 12 mm | 8 – 20 |
| Inlet Inner Diameter | 6 mm | 2 – 10 |
| Inlet Boss Length | 20 mm | 10 – 40 |
| Outlet Spacing | 70 mm | 40 – 120 |
| Port Hole Diameter (Outlet 1) | 18 mm | 10 – 30 |
| Port Hole Depth (Outlet 1) | 15 mm | 5 – 25 |
| Seat Step 1 Diameter (18mm) | 18 mm | 10 – 30 |
| Seat Step 1 Depth | 10 mm | 1 – 20 |
| Seat Step 2 Diameter (8mm) | 8 mm | 4 – 16 |
| Seat Step 2 Depth | 4 mm | 1 – 10 |
| Seat Step 3 Diameter (5mm) | 5 mm | 2 – 8 |
| Seat Step 3 Depth | 1 mm | 0.5 – 5 |
| Cylinder Outer Diameter | 45 mm | 30 – 80 |
| Cylinder Height | 130 mm | 80 – 200 |
| Cylinder Wall Thickness | 2 mm | 1 – 5 |
| Neck Outer Diameter | 18 mm | 10 – 30 |
| Neck Inner Diameter | 14 mm | 8 – 20 |
| Neck Length | 10 mm | 5 – 20 |
| Plunger Cone Base Diameter | 8 mm | 4 – 12 |
| Plunger Cone Height | 2 mm | 0.5 – 5 |
| Plunger Shaft Diameter | 3 mm | 1 – 6 |
| Plunger Shaft Length | 20 mm | 5 – 40 |
| Plunger Collar Diameter | 10 mm | 4 – 16 |
| Plunger Collar Thickness | 2 mm | 0.5 – 5 |
| Plunger Collar Z Offset | 22 mm | 5 – 50 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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