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Open nowPosted 3 days ago

Master´s Thesis: Proportional Piezo Valve for Electric Propulsion Feed Systems (m/f/d)

deltaVision GmbH22 open roles

Where
München
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Your applicationOpen nowMaster´s Thesis: Proportional Piezo Valve for Electric Propulsion Feed Systems (m/f/d)deltaVision GmbH · München

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The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. deltaVision GmbH postings stay open a median of 15 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 58.1%60 days
This job: posted 3 days ago

deltaVision GmbH median: 15 days open

The posting

Deine Mission

Join our fluid control equipment development team and help develop a proportional piezo valve for precise mass flow control in electric propulsion feed systems. Electric thrusters such as Hall-effect and gridded ion thrusters need a very stable, finely resolved propellant flow (typically xenon or krypton) in the low mg/s range. Piezoelectric actuators offer fast response, high resolution, and low power use, which makes them a promising alternative to conventional thermal throttles and bang-bang solenoid regulation. However, effects such as hysteresis, creep, and temperature dependence must be understood and compensated. You will model, build up, and experimentally characterize a piezo-based flow control concept, and develop a control strategy for closed-loop mass flow regulation.

Your Responsibilities

  • Review the state of the art in mass flow control for electric propulsion, including thermal throttles, solenoid-based pressure regulation, and piezo valves
  • Research state of the art of piezo actuators and trade different architectures (e.g. stacked, amplified, piezo motors) for the given application
  • Characterize the piezo actuator (stroke, force, hysteresis, creep, temperature behavior) and its effect on the valve’s flow area
  • Assess the concept against typical electric propulsion requirements (flow range, leak rate, power consumption, operating temperature range)
  • Build a physical flow model of the valve that links actuator stroke, inlet pressure, and gas properties to mass flow, covering the relevant flow regimes (e.g., choked and transitional flow)
  • Integrate the actuator into a valve architecture and design a breadboard model
  • Review existing test bench infrastructure with pressure sensors and a mass flow meter, adapt if necessary, and carry out flow characterization with inert gases
  • Optionally, develop and implement a closed-loop control strategy (e.g., PID with hysteresis compensation) and evaluate its performance in terms of accuracy, resolution, response time, and stability
  • Optionally, derive design recommendations for a flight-representative valve

Dein Profil

  • Currently enrolled in a relevant engineering program, ideally Aerospace Engineering, Mechanical Engineering, Mechatronics, Electrical Engineering, or a similar field
  • Solid knowledge of fluid mechanics or gas dynamics; experience with control engineering is a plus
  • Hands-on experience with lab work, test setups, or measurement technology (e.g., from working student jobs, engineering projects, or student teams)
  • Programming skills in Julia, Python or MATLAB/Simulink for modeling, data analysis, and controller design
  • Motivated, pragmatic, and self-organized
  • Fluent in English; German and other languages are a plus

Wir bieten

  • Internship can be mandatory or voluntary
  • Above average remuneration
  • Guided but self-determined problem solving to realize your ideas
  • Deep dive into the domain of commercial spaceflight and mobility
  • Opportunity for an adjacent employment as working student or for thesis
  • Flexible entry date, the sooner the better with flexible working hours
  • Holiday entitlement above German standards
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