General Theory Of Operation - KitchenAid KMTM704E Series Technical Education

2015 KitchenAid Microfiltration Wash System
No Filter Cup, No Chopper
The industry's first microfiltration system is a clear departure
from traditional, passive filtration because it continuously
filters 100% of the water, reducing the cycle time and energy
consumption on the heaviest loads.
Similar on the Surface, Radically Different Inside
The only visible filtration component of the new filtration
system is the coarse filter in the bottom of the tub. The rest of
the high-performance filtration system is below the tub.
A - Coarse Filter
B
Dirty
Water
Enters
Food Soils
Flushed Out

General Theory of Operation

Drain
Motor
Wash Flow
Drain Flow
Figure 1 - Microfiltration Wash System
How Microfiltration Works (See Figure 1)
1. Water and food particles flow through the coarse filter
into the filter housing.
2. An impeller pulls wash and rinse water into the spinning
ultra-fine filter (B).
3. The ultra-fine filter is cleaned by an area of back-pressure
(C) created by two sets of wing-shaped blades located
inside
4. Food particles remain suspended inside the filter housing;
filtered water is pumped back to the wash arms.
5. During draining, a secondary pump flushes out food
particles and soils.
Impeller
Wash
Motor
KitchenAid 2015 Microfiltration Dishwashers
GENERAL INFORMATION
(D) and outside (E) the filter.
B - Spinning Ultra Fine Filter
Area of Back Pressure
C
(A)
E
C
D
n
1-3