Heat exchanger with locking connector
First Claim
Patent Images
1. A heat exchanger comprising:
- a tank having a wall, an opening through the wall, and an annular collar concentric with the opening and extending from an outer surface of the wall;
a retaining washer positioned substantially concentrically within the annular collar and engaging an outer surface of the wall, the retaining washer having an opening;
a connector having a threaded portion inserted through the opening of the retaining washer and the opening of the wall, the connector being connected to the retaining washer so that the connector does not rotate relative to the retaining washer;
a nut receiving the threaded portion and the connector being secured to the wall by rotating the connector in one direction,wherein the retaining washer has first projections and the annular collar has second projections, the first projections engaging the second projections, andwherein the first and second projections are arranged to permit the retaining washer to rotate in the one direction and prevent unintentional rotation in the opposite direction.
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Accused Products
Abstract
A heat exchanger, particularly with an integrated oil heat exchanger, has screw-in connectors. Each connector is secured to the exchanger using a retaining ring, which has finger forming projections. The heat exchanger has an annular collar with circumferentially spaced teeth on its inner circle. The fingers engage the teeth. The fingers and the teeth are arranged to prevent the connector from being unintentionally unscrewed or loosened by virtue of the connector being secured by the retaining ring.
19 Citations
15 Claims
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1. A heat exchanger comprising:
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a tank having a wall, an opening through the wall, and an annular collar concentric with the opening and extending from an outer surface of the wall; a retaining washer positioned substantially concentrically within the annular collar and engaging an outer surface of the wall, the retaining washer having an opening; a connector having a threaded portion inserted through the opening of the retaining washer and the opening of the wall, the connector being connected to the retaining washer so that the connector does not rotate relative to the retaining washer; a nut receiving the threaded portion and the connector being secured to the wall by rotating the connector in one direction, wherein the retaining washer has first projections and the annular collar has second projections, the first projections engaging the second projections, and wherein the first and second projections are arranged to permit the retaining washer to rotate in the one direction and prevent unintentional rotation in the opposite direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification