mepsi micro propulsion system xv0e10889-01 - … micro propulsion system that includes a pro-pellant...

Features

Operating Parameters

SP

AC

E

VACCO Industries | 10350 Vacco Street | South El Monte, CA 91733 T: (626) 443-7121 | F: (626) 442-6943 | E: [email protected] | W: www.vacco.com

A Subsidary of ESCO Technologies Inc.

© VACCO Industries Rev 8/13

Performance characteristics are based on customer requirements. As such, they are not representative of component capabilities or limitations.

MEPSI Micro Propulsion System XV0E10889-01

• Five thrusters for pitch, yaw, roll and delta-v

• 53 mN thrust

• Up to 43,000 minimum impulse firings

• Redundant, frictionless valves

The MEMS PicoSat Inspector (MEPSI) Micro-Pro-pulsion System (MiPS) is a cold gas propulsionsystem designed for 1U CubeSats.

Using Chemically Etched Micro System(ChEMS™) technology, VACCO has produced acomplete propulsion system including propellantstorage, pressurization, distribution and thrusters.This simple, highly integrated design uses a self-pressurizing liquid propellant that is expelled as agas.

Capable of 23 N-Sec of total impulse with up to43,000 firings, MiPS brings true propulsion capa-bilities to micro-spacecraft for formation flying, atti-tude control and velocity change (delta-v).

Max Operating Pressure .................................150 psia

Proof Pressure ................................................225 psia

Burst Pressure ................................................375 psia

Thrust................................................... 53 mN @ 20ºC

Internal Leakage .....................3.6 scc/hr GN2 @ 20ºC

External Leakage .........1.0 x 10 -6 scc/hr GN2 @ 20ºC

Operating Temperature........................... 0°C to +60°C

Vibration..........................................................16 Grms

Cycle Life ............................................... 80,000 cycles

Minimum Impulse Bit................................ 0.53 mN-sec

Operating Voltage ...................................4.0 to 6.0 vdc

Tank Pressure Sensor Output ................0.5 to 3.5 vdc

Gas Tank Pressure Sensor Output.........0.5 to 3.5 vdc

Coil Resistance ..................................5.3 +/- 0.5 coil

Pull-in Voltage............................. 3.5 vdc max @ 20°C

Drop Out Voltage ......................... 1.0 vdc min @ 20°C

Mass ................................................... 456 grams (dry)

• All-welded titanium construction

• Dry mass: 456 grams

• Integral pressure & temperature sensors

Envelope Drawing




Performance Characteristics

System Schematic

XV0E10889-01

Maneuver Thrusters

+Yaw (+X AB

-Yaw (-X) CD

+Pitch (+Y) Roll 90° CW, then CD

-Pitch (-Y) Roll 90° CW, then AB

CW Roll AD

CCW Roll CB

Delta V (+Z) ABCD

Delta V (-Z) E

Features

Operating Parameters

SP

AC

E




Performance characteristics are based on customer requirements. As such, they are not representative of component capabilities or limitations.

Palomar Micro Propulsion System XS0E10220-01

• Over 200,000 thruster firings in a simulated space environment

• Ten frictionless valves for thrust, plenum pressure regulation, and filling

• Eight independent thrusters

• Simple command protocol for operation and health monitoring

The Palomar Propulsion System is a fully integratedCubeSat micro propulsion system that includes a pro-pellant tank, plenum and eight thrusters. The PalomarMiPS is designed to occupy the center of a 3U CubeSat.This smart system is designed to interface with the

spacecraft through an I2C data bus for command andcontrol.

The Palomar MiPS is primarily a reaction control systemwith thrusters arranged so that use of all six degrees offreedom (DoF) in rotation and translation are possible.Additional propellant is available by stretching the tanklobes, allowing for a custom propulsion system massand volume based on specific mission needs.

Upgrades to other propellants available.

Max Operating Pressure .................................150 psia

Proof Pressure ................................................225 psia

Burst Pressure ................................................375 psia

Thrust.................................................................35 mN

Internal Leakage ...........................................3.0 scc/hr

External Leakage .................................1.0 x 10 -6 scch

Operating Temperature........................... 0°C to +50°C

Non-Operating Temperature................ -10°C to +60°C

Vibration..........................................................23 Grms

Cycle Life ..............................................120,000 firings

Total Impulse ................................................. 85 N/sec

Minimum Impulse Bit................................ 0.75 mN/sec

Operating Voltage ...............................4.75 to 5.25 vdc

Peak Power.............................<5 watts (two thrusters)

Dry Mass..................................................... 890 grams

Propellant Mass .......................................... 173 grams

Total Mass ............................................... 1,063 grams

• Liquid isobutane propellant provides high storage density; other propellants available

• Complete propulsion system in one mono-lithic package

• 5V power supply and I2C serial data inter-face

Envelope Drawing




Flow Schematic

Back View

XS0E10220-01

Side View

Front View

mepsi micro propulsion system xv0e10889-01 - … micro propulsion system that includes a pro-pellant...

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