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2022-04-13
Vacuum pumps UP 5.0 and UP 28 and pressure sensors
Pressure that makes sense: Vacuum pumps play a crucial role in ensuring that the braking system functions reliably. They can support the pneumatic brake boosting system, or generate the necessary vacuum completely by themselves.
Electric vacuum pumps are used to ensure the reliable operation of the brake booster. HELLA has many years of development and production experience in this field and has been one of the leading suppliers for many years.
Vacuum pumps function according to the so-called rotary displacement compression principle. The vacuum chamber contains an eccentrically arranged rotor whose vanes slide along the inner wall of the pump chamber, continuously compressing the volume. The vacuum pump or the generated vacuum draws air from the brake booster via the pneumatic line system.
Depending on the engine design and driving environment, the combustion engine may not generate sufficient vacuum via the intake manifold or, in extreme cases, no vacuum at all. In this case, HELLA vacuum pumps support the engine in generating the necessary vacuum or supply the required vacuum completely themselves.
Pressure that makes sense: Vacuum pumps play a crucial role in ensuring that the braking system functions reliably. They can support the pneumatic brake boosting system, or generate the necessary vacuum completely by themselves.
Electric vacuum pumps are used to ensure the reliable operation of the brake booster. HELLA has many years of development and production experience in this field and has been one of the leading suppliers for many years.
Vacuum pumps function according to the so-called rotary displacement compression principle. The vacuum chamber contains an eccentrically arranged rotor whose vanes slide along the inner wall of the pump chamber, continuously compressing the volume. The vacuum pump or the generated vacuum draws air from the brake booster via the pneumatic line system.
Depending on the engine design and driving environment, the combustion engine may not generate sufficient vacuum via the intake manifold or, in extreme cases, no vacuum at all. In this case, HELLA vacuum pumps support the engine in generating the necessary vacuum or supply the required vacuum completely themselves.
Vacuum pumps UP 5.0 with engine compartment connector
Technical drawing of the vacuum pump UP 5.0
Vacuum pumps UP 28 with engine compartment connector
Vacuum pump UP 28 with engine compartment connector
Vacuum pumps UP 28 with relay box
Technical drawing of the vacuum pump UP 28 with relay box
Technical Data
| UP 28 | UP 5.0 | |
| Rated voltage | 13.5 V | 13 V |
| Average current consumption between thresholds | < 10 A | 16 A |
| Lifetime | 600 h | 1,500 h |
| Max. vacuum |
86% (≥ 88% typical) |
≥ 90% |
| Time to lower to 50% of ambient pressure | ≤ 5.5 s | ≤ 3.0 s |
| Time to lower to 70% of ambient pressure | ≤ 11 s | ≤ 6.0 s |
| Booster size | 3.2 l | 5 l |
| Operating temperature |
-40 °C to +100 °C |
-40°C to +120°C |
| Acoustics | < 70 db (A) | < 73 db (A) |
| Protection class | IP 6K9K | IP 6K9K |
Program Overview
| Variant | Part number | Packaging unit |
|---|---|---|
| Vacuum pumps UP 5.0 with engine compartment connector |
8TG 012 377-701 8TG 012 377-707 |
1 10 |
| Vacuum pumps UP 28 with engine compartment connector |
8TG 009 428-081 8TG 009 428-087 |
1 6 |
| Vacuum pumps UP 28 with relay box |
8TG 008 570-021 8TG 008 570-027 |
1 6 |