injector

Injector finished

We have finished machining the injector for the Pyralis rocket engine. The injector is the most mechanically complex part of the engine. Fuel and oxidizer pipes tap into the injector, and channels within the injector route the propellants to a ring of six injector heads. Within each injector head, the propellants are mixed together and…

Injector with Seals

Injector Seals

We machined glands into the injector bottom face which hold copper seals. These seals will prevent hot combustion gases from leaking through the joint between the combustion chamber wall and the bottom face of the injector.

outside the dust room

Dust Room Renovation

We’ve just finished renovating the dust room in our lab. This room contains our power tools and keeps the dust generated by cutting wood, metal and composites from spreading into the rest of the lab.

The combustion chamber is test-fitted to a half finished injector. The rocket's propellants will mix and spray out of the six orifices in the injector.

Injector and Combustion Chamber

We’ve begun to make components for the next iteration of the Pyralis engine. As this version will burn ethanol and nitrous oxide at high temperatures, we need to make the components from materials which can take the heat. The picture below shows the combustion chamber wall being fitted to a half-finished injector. Both are made…

The new spike, made of 6061 Aluminum

New Spike!

We made a new nozzle for the cold-flow rocket engine. By comparing the results of cold-flow tests performed on the two spike versions, the team is gaining valuable insights about aerospike nozzle design.

Looking up the nozzle of the Pyralis Cold Flow prototype

Cold Flow Test!

Today the MIT Rocket Team conducted a successful cold flow test of the Pyralis rocket engine prototype. We flowed compressed nitrogen gas at 4.1 MPa (600 psi) pressure through the engine’s nozzle and combustion chamber, generating about 220 N (50 lbs) of thrust force. Over the next weeks,we will continue to test the Cold-Flow prototype…

James and Ryan setting up the Test Stand in the Gas Turbine Lab

Cold Flow Test Setup

We’ve spent the past week putting the finishing touches on the Cold Flow test stand and engine. Yesterday, we moved the test stand into a blast chamber in MIT’s Gas Turbine Lab where we will conduct several Cold Flow tests of the Pyralis prototype next week. Thanks to Jimmy Letendre and Prof. Spakovszky for letting…

100_4070

Test Stand & Cold-Flow Prototypes

The test stand is finished and ready to be used for the upcoming cold-flow test.                               Connie L, James L, Eric R, and Matt V finished machining and assembling the injector plate and the cage that will enclose the Pyralis engine…

Level 1 Rocket

Level 1 Launch From On-Rocket Camera

Sorry for the long wait, but here is a video clip from Connie’s level 1 rocket launch from November in Amesbury, MA as seen from a camera on-board the rocket. Unfortunately, the parachute deployment knocked the camera out of position, so there’s only good footage of the launch on the way up. Enjoy! Click here…