Refrigerator appliance with a clear icemaker

  • US 10,605,493 B2
  • Filed: 01/26/2017
  • Issued: 03/31/2020
  • Est. Priority Date: 01/26/2017
  • Status: Active Grant
First Claim
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1. A refrigerator appliance, comprising:

  • a cabinet defining a chilled chamber for receipt of food items for storage, the cabinet having a door and defining a duct;

    an icemaker comprising a mold body defining an ice cavity and a manifold positioned over the ice cavity of the mold body such that water from the manifold is flowable through the ice cavity, the ice maker further comprising a water funnel and a pump, the water funnel positioned below the mold body, the water funnel tapered towards a sump of the water funnel, the pump connected to the sump of the water funnel and the manifold such that the pump is operable to flow water from the sump of the water funnel to the manifold, the ice maker further comprising an ice-collector, the ice collector positioned below the mold body to receive ice from the ice cavity, the ice collector having a bottom wall sloped towards a collection volume of the ice-collector, an ice inlet of the ice-collector offset from a water inlet of the water funnel in a plane that is perpendicular to a vertical direction; and

    a sealed system positioned within the cabinet, the sealed system comprisinga compressor operable to generate compressed refrigerant;

    a first capillary tube connected to receive condensed refrigerant;

    a first evaporator positioned proximate the chilled chamber of the cabinet, the first evaporator connected in series with the first capillary tube;

    a second capillary tube connected to receive condensed refrigerant;

    a third capillary tube; and

    a second evaporator positioned proximate an inlet of the duct, the second and third capillary tubes connected in series with the second evaporator such that the second evaporator is between the second and third capillary tubes,wherein one or both of a length and an inner diameter of the first capillary tube is selected such that the chilled air at the first evaporator is a first temperature during operation of the sealed system, andwherein one or both of a length and an inner diameter of the second capillary tube is selected such that the chilled air at the second evaporator is a second temperature during operation of the sealed system, the first temperature being less than the second temperature.

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