Aerospace Engines A to Z
Aerospace Engines A to Z

Updated: 02-Apr-2019

Hirz made a water-cooled, upright inline-four engine. It gave 40 CV at 1,400 rpm.

-As we can see the construction of the Hilz was very similar to the car engines of the time.

Hilz 50 CV
“Hilz 50 CV”

-There were two more developments, with four cylinders as well, the 50 CV shown in the photograph, and another one that gave 60 CV. And there also were two fan-shape engines.

From Appendix 7: In the main text, this brand is mentioned as a 40, 50 and 60 CV engine construction company. It made another one with less power, between 24 and 30 CV.

Hilz engine on Schulze monoplane
"Hilz engine in Schulze monoplane" (PiP-fmr)

-Hilz Motorenfabrik was located in Dusseldorf. Around 1911-1913 it had two fan-type cylinder motors. (in the style of pioneer Anzani). Maybe they were built under license.

-They were the 25-30 CV with three cylinders, and the 50 CV with five cylinders.

The 3-cylinder Hilz from the Schulze aircraft
"The 3-cylinder Hilz from the Schulze aircraft"

From Appendix 9: Below we show a new localized engine with 6 radial cylinders.

Motor HilzStern, (Hilz Star)
“Motor HilzStern, (Hilz Star)”

Hilz inline-four engine
“Hilz inline-four engine”

-Above a new picture of the inline-4 that gave 65 CV, which complements those shown in the main text.

From Appendix 12: New drawing of a fan-shaped three-cylinder engine schematics.

Outline of the three-cylinders Hilz engine
"Outline of the three-cylinders Hilz engine"

Engines of HILZ

Model: 3 cyl. fan-shape 25-30 CV

Arquitecture: 3-cylinder Fan-shape
Cooling:
Total Displacement:
Bore / Stroke:
Power: 30 CV
Weight:

Other details:
The 3-cylinder Hilz engine of a Schulze airplane

"The 3-cylinder Hilz engine of a Schulze airplane"

Model: 4 cyl. in line, 30 CV

Arquitecture: 4-cylinder In-line
Cooling: Liquid
Total Displacement:
Bore / Stroke:
Power: 30 CV
Weight:

Other details:
Model: 4 cyl. in line, 40 CV

Arquitecture: 4-cylinder In-line
Cooling: Liquid
Total Displacement:
Bore / Stroke:
Power: 40 CV
Weight:

Other details:
Model: 4 cyl. in line, 50 CV

Arquitecture: 5-cylinder In-line
Cooling: Liquid
Total Displacement:
Bore / Stroke:
Power: 50 CV
Weight:

Other details:
Hilz 50 CV

"Hilz 50 CV"

Model: 4 cyl. in line, 60 CV

Arquitecture: 4-cylinder In-line
Cooling: Liquid
Total Displacement:
Bore / Stroke:
Power: 60 CV
Weight:

Other details:
Model: 5 cyl. fan-shape, 50 CV

Arquitecture: 5-cylinder Fan-shape
Cooling:
Total Displacement:
Bore / Stroke:
Power: 50 CV
Weight:

Other details:
Model: 6 cyl. radial

Arquitecture: 6-cylinder Radial
Cooling:
Total Displacement:
Bore / Stroke:
Power:
Weight:

Other details:
HilzStern engine (Star engine = radial engine)

"HilzStern engine (Star engine = radial engine)"