Throttleable Main Engine
AssemblyPressure-fed MMH/MON-3 engine producing up to 3.5 kN, throttleable 10:1 by a variable-area pintle injector; vacuum specific impulse about 320 s. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Throttleable Main Engine parts and their functions
5 top-level parts · 6 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Pintle Injector | 1× | Variable-area pintle |
| 2 | Combustion Chamber | 1× | Ablative chamber |
| 3 | Engine Nozzle Extension | 1× | Radiatively cooled nozzle |
| 4 | Throttle Valve | 2× | Flow control valves |
| 5 | O-Ring Set | 1× | Interface seals (reuse) |
3D model
No 3D model yet. Have a CAD file of this? Add a 3D model. STL renders right on this page; STEP, FreeCAD, and OpenSCAD sources are welcome too (openly licensed, like all 3D models on BOMwiki).
Build & assembly graph
expand / collapse · shared sub-assemblies converge · links to related products · est. labour
product / assembly
shared across products
atomic part
related product
Tap an assembly to expand/collapse · tap a part to open it · use “Open page” for any node · drag to pan, scroll to zoom.
Bill of materials for Throttleable Main Engine
5 top-level lines · 5 rows shown · 6 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Pintle Injector | lunar-lander-pintle-injector | 1× | 1 | · | part |
| 2 | Combustion Chamber | lunar-lander-combustion-chamber | 1× | 1 | · | part |
| 3 | Engine Nozzle Extension | lunar-lander-engine-nozzle | 1× | 1 | · | part |
| 4 | Throttle Valve | lunar-lander-throttle-valve | 2× | 2 | · | part |
| 5 | O-Ring Set | oring-set | 1× | 1 | · | part |
Something wrong in this list? Report a problem with this BOM.
Where the throttleable main engine is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $500–$50k. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| weichai.com ↗ | Weifang, CN | Diesel & power engines | 50 units | 12–16 wks |
| cumminsindia.com ↗ | Pune, IN | Diesel engines | 50 units | 12–16 wks |
|
🇨🇳Yuchai
yuchai.com ↗
|
Yulin, CN | Diesel engines | 50 units | 12–16 wks |
| koel.co.in ↗ | Pune, IN | Diesel & gas engines | 50 units | 12–16 wks |
| ashokleyland.com ↗ | Chennai, IN | Engines & commercial vehicles | 50 units | 12–16 wks |