How is the number of lobes on the outer rotor when compared to the inner rotor lobes in a rotor pump?(a) Less(b) More(c) Same(d) Has no effectI got this question in an interview.My question is taken from Lubrication and Lubricants topic in section Lubrication and Lubricants of Automotive Engine Design

How is the number of lobes on the outer rotor when compared to the inn

1.	How is the number of lobes on the outer rotor when compared to the inner rotor lobes in a rotor pump?(a) Less(b) More(c) Same(d) Has no effectI got this question in an interview.My question is taken from Lubrication and Lubricants topic in section Lubrication and Lubricants of Automotive Engine Design
Answer» The correct answer is (a) Less The explanation is: In the ROTOR pump the outer rotor always has 1 less lobe when compared to the INNER rotor WHEREIN the extra space the oil GETS compressed.

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