Ulysse Valentin - Originele technische tekening – “Carburateur à air additionnel” - Ulysse





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Original technical drawing by Ulysse Valentin, hand signed, circa 1920, depicting the carburateur à air additionnel with detailed air and fuel flow, ideal for automotive history collectors.
Description from the seller
ChatGPT said:
Original technical drawing – 'Additional air carburetor' – circa 1920 – École Professionnelle de Mécanique, Huy (Belgium)
Very beautiful and rare original hand-drawn technical illustration in Indian ink and colored pencil, depicting the operation and cross-section of a carburetor with an air addition (extra air supply).
The drawing shows in detail the operation of:
air intake (additional air and main air)
the injector and venturi (air-fuel mixture formation)
the float chamber with double floaters (F F)
and the fuel filter and supply channel (gasoline – filter).
The airflow and fuel circulation are indicated with arrows, making the illustration particularly didactic. The combination of technical precision and artistic use of color (pink, yellow, blue, and violet) makes this a very attractive and historically valuable document.
Originating from the École Professionnelle de Mécanique – Automotive Section, under the leadership of Ulysse Valentin, Professor of Automotive Mechanics and Department Head, whose stamps and signatures are clearly visible.
Carburetor with supplementary air
Period: approx. 1920
Origin: École Professionnelle de Mécanique, Huy (Belgium)
Author: Ulysse Valentin, Professor of Automotive Mechanics
Technique: East Indian ink and colored pencil on drawing cardboard.
Dimensions: approximately 70 × 50 cm
Stamps: École Professionnelle de Mécanique + signature Ulysse Valentin
Condition: good, with some minor age spots and discoloration consistent with the age (see photos).
Details
Original record cover, hand-drawn around 1920.
Topic: carburetor, fuel and air mixing
Very decorative and historically valuable piece of technical heritage.
Ideal for collectors of automotive history or technical illustrations.
Short biography of Ulysse Valentin
Ulysse Valentin (active from the early 20th century) was a professor of automotive engineering in Hoei and Marchin (Liège province, Belgium). He trained young technicians and driver-mechanics during a time when the automobile was still in full development. Valentin was known for his didactic approach, producing large and precise diagrams that helped students understand the workings of engines and vehicles.
His education reflects the transition from horse-drawn carriages to cars. The signatures and stamps on his students' drawings and diplomas make these documents valuable testimonies of the early history of motorsport in Wallonia.
ChatGPT said:
Original technical drawing – 'Additional air carburetor' – circa 1920 – École Professionnelle de Mécanique, Huy (Belgium)
Very beautiful and rare original hand-drawn technical illustration in Indian ink and colored pencil, depicting the operation and cross-section of a carburetor with an air addition (extra air supply).
The drawing shows in detail the operation of:
air intake (additional air and main air)
the injector and venturi (air-fuel mixture formation)
the float chamber with double floaters (F F)
and the fuel filter and supply channel (gasoline – filter).
The airflow and fuel circulation are indicated with arrows, making the illustration particularly didactic. The combination of technical precision and artistic use of color (pink, yellow, blue, and violet) makes this a very attractive and historically valuable document.
Originating from the École Professionnelle de Mécanique – Automotive Section, under the leadership of Ulysse Valentin, Professor of Automotive Mechanics and Department Head, whose stamps and signatures are clearly visible.
Carburetor with supplementary air
Period: approx. 1920
Origin: École Professionnelle de Mécanique, Huy (Belgium)
Author: Ulysse Valentin, Professor of Automotive Mechanics
Technique: East Indian ink and colored pencil on drawing cardboard.
Dimensions: approximately 70 × 50 cm
Stamps: École Professionnelle de Mécanique + signature Ulysse Valentin
Condition: good, with some minor age spots and discoloration consistent with the age (see photos).
Details
Original record cover, hand-drawn around 1920.
Topic: carburetor, fuel and air mixing
Very decorative and historically valuable piece of technical heritage.
Ideal for collectors of automotive history or technical illustrations.
Short biography of Ulysse Valentin
Ulysse Valentin (active from the early 20th century) was a professor of automotive engineering in Hoei and Marchin (Liège province, Belgium). He trained young technicians and driver-mechanics during a time when the automobile was still in full development. Valentin was known for his didactic approach, producing large and precise diagrams that helped students understand the workings of engines and vehicles.
His education reflects the transition from horse-drawn carriages to cars. The signatures and stamps on his students' drawings and diplomas make these documents valuable testimonies of the early history of motorsport in Wallonia.

