Pintle Injector
AssemblySingle central pintle element in place of hundreds of coaxial ones: LOX flows down the centre post and sheets radially into an annular fuel curtain, inherently stable and throttleable, which is why a landing engine wants one. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Pintle Injector parts and their functions
5 top-level parts · 31 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Pintle Post | 1× | Central oxidizer post whose tip geometry sets the radial LOX sheet; the single moving-fluid element that replaces a whole coaxial injector pattern. |
| 2 | Pintle Fuel Sleeve | 1× | Annular sleeve around the post that forms the cylindrical fuel curtain the LOX sheet impinges on. |
| 3 | Injector Manifold | 1× | Machined dome and gallery distributing both propellants to the pintle element. |
| 4 | O-Ring Set | 4× | Interface and gland seals |
| 5 | Fastener Set | 24× | Bolts, nuts, and washers. |
3D model
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Build & assembly graph
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Bill of materials for Pintle Injector
5 top-level lines · 5 rows shown · 31 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Pintle Post | reusable-launch-vehicle-pintle-post | 1× | 1 | · | part |
| 2 | Pintle Fuel Sleeve | reusable-launch-vehicle-pintle-sleeve | 1× | 1 | · | part |
| 3 | Injector Manifold | reusable-launch-vehicle-injector-manifold | 1× | 1 | · | part |
| 4 | O-Ring Set | oring-set | 4× | 4 | · | part |
| 5 | Fastener Set | fastener-set | 24× | 24 | · | part |
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Where the pintle injector is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 2 assemblies
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 $5–$2k. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| kbl.co.in ↗ | Pune, IN | Pumps & fluid systems | 200 units | 6–10 wks |
| leo.com.cn ↗ | Taizhou, CN | Pumps | 200 units | 6–10 wks |
| shaktipumps.com ↗ | Pithampur, IN | Pumps | 200 units | 6–10 wks |
| cnppumps.com ↗ | Hangzhou, CN | Pumps | 200 units | 6–10 wks |
| rotopumps.com ↗ | Noida, IN | Pumps | 200 units | 6–10 wks |