aeration

OIL AERATION HURTS EFFICIENCY

OIL AERATION HURTS EFFICIENCY

Many OEMs are battling to improve vehicle durability, increase efficiency and reduce noise, but are struggling to find the answers. Unfortunately, many of the recent design trend are forcing higher aeration levels, and far too many OEMs are unaware. 

In the pursuit of greater efficiency, many OEMs are making design decisions that may amplify the effects of oil aeration. Air bubbles may seem benign, but they can detrimentally affect the performance and durability of engines, drivelines and hydraulic equipment.  

Does Aeration Lead to Cavitation?

Does Aeration Lead to Cavitation?

Apart from the ingress of debris, the greatest danger to any design of a pump is cavitation. The phenomenon can be found in centrifugal (i.e. impeller) or positive displacement (i.e. gear, gerotor or vane) pumps, in both oil and coolant applications. Excessive cavitation can lead to erosion damage. It is important to understand how cavitation occurs as there are some misconceptions and confusion on this topic.

Pump Testing Methodologies

Pump Testing Methodologies

Whether developing a new hydraulic pump design that has to closely match predefined specifications, or verifying the functionality of a production unit, an accurate and reliable test system is needed to confirm the functional parameters of those pumps.