US 4,239,462 A · Heat barrier for motor-pump aggregates

Abstract

A spool-shaped metallic heat barrier is inserted between the motor housing and the pump housing of a motor-pump assembly which conveys fluids at elevated temperatures. The flanges of the heat barrier abut against and are connected to the respective housings by means of bolts, and are rigidly secured to each other by several annuli of discrete heat dissipating ribs which are adjacent to the peripheries of the flanges. That flange which is adjacent to the motor housing can be formed with a peripheral groove the radially outermost portion of which receives a ring-shaped closure so that the inner portion of the groove forms an annular channel for reception of a stagnant or circulating liquid coolant.

Claims8

Dependent claims

In a motor-pump aggregate, particularly for conveying of fluids which are maintained at an elevated temperature, the combination of a motor housing;

a pump housing spaced apart from said motor housing;
a heat barrier interposed between said housings and including spaced-apart first and second end portions respectively abutting against said motor housing and said pump housing, and a plurality of heat dissipating elements extending between and rigid with said end portions and forming two concentric annuli of different diameters;
and means for fastening said heat barrier to said housings, including connectors forming an annulus concentric with and having a diameter between those of said annuli of heat dissipating elements.

Dependencies are inferred from the claim text.

Heat barrier for motor-pump aggregates

Life of this patent

Heat barrier for motor-pump aggregates

Life of this patent

Abstract

Claims8