The bachelor’s thesis by Thomas Geldmacher provides a well‑structured and technically sound overview of common‑rail injection systems for large diesel engines. The student demonstrates strong command of the topic, working effectively with technical literature and manufacturer documentation. The thesis clearly explains the function of individual components, their control strategies, and the specific adaptations required for engines exceeding 130 kW per cylinder. The breadth of the research, including detailed descriptions of high‑pressure pumps, accumulators, injectors, and real‑world applications across marine, rail, industrial, and power‑generation sectors, is a notable strength. While the work is comprehensive, some chapters remain predominantly descriptive and could benefit from deeper analytical synthesis. Nevertheless, the thesis meets the assignment objectives and represents a high‑quality and professionally written piece of work.

The bachelor’s thesis by Mr. Geldmacher deals with the topic of common-rail systems for large engines. The thesis is a literature review and is based on 54 sources. Considering the review-based nature of the thesis, I consider this number of sources to be rather borderline, but still sufficient to meet the stated objectives. The thesis is clearly structured and has a total length of 48 pages. In the introductory part, the author appropriately presents the motivation for addressing the topic, identifies the problem, and formulates the objectives of the thesis. This is followed by basic information related to the topic. The author then provides a historical overview of fuel injection systems, ranging from mechanical systems through unit pump and unit injector systems to common-rail systems. The subsequent sections focus specifically on common-rail systems, with the discussion gradually narrowing down to the specifics of their application in large engines. The individual chapters are logically arranged and clearly written. I also appreciate that the text is suitably supplemented with representative examples from the individual categories, which contributes to the clarity and illustrative value of the thesis. The final part of the thesis presents development trends and future perspectives in the field. However, I would have expected a more substantial contribution from the author, particularly a deeper focus on identifying trends that can be expected in the near future, as well as on current challenges in the area of common-rail systems for large engines and the ways in which research and development are responding to these challenges.Overall, the thesis can be considered to be of a good standard. The text is written in a readable manner, the chapters follow each other logically, and the thesis contains only a minimal number of stylistic shortcomings. The stated objectives of the thesis have been fulfilled. Based on the above, I recommend the bachelor’s thesis for defence. Topics for thesis defence:

1. What are the main development trends that can be expected in the near future in the field of common-rail systems for large engines?
2. What technical measures do you consider necessary to meet future emission limits for large engines equipped with common-rail systems?