Heat exchanger, a method of making a heat exchanger and a kit
AssigneeDENSO Marston Ltd.
InventorsJonathan Turnbull, Michael Smith, Mario Ciaffarafa
Life of this patent
Estimating the term…
Abstract
A heat exchanger comprises a casing defining a chamber for liquid, an internal spacer inside the chamber and means for detecting the presence of the spacer. The detecting means may comprise an aperture in the casing to receive a projection on the spacer so that the projection can be seen.
Claims42
A heat exchanger comprising a casing defining a chamber for liquid, a spacer inside the chamber and means for detecting the presence of the spacer.
A heat exchanger comprising:
- a casing defining a chamber for liquid,
- a spacer disposed inside the chamber and
- at least one projection on the spacer received in a hole in a wall of the chamber to locate the spacer.
A kit of parts for brazing together to make a heat exchanger, the kit comprising:
- two parts to be connected together to form a fluid chamber;
- a spacer disposed between the two parts, brazed to both of the two parts wherein;
- one of the two parts includes a flat peripheral surface brazed to a flat peripheral surface on the other of the two parts, one of the flat peripheral surfaces being interrupted by a rebate, the rebate forming an aperture when the flat peripheral surfaces of the parts are in contact, the spacer including a projection sitting in the aperture and brazed to surfaces defining the aperture.
A method of making a heat exchanger, the method comprising:
- placing a first part so that a hollow defined in the first part faces upwards surrounded by a flat peripheral surface,
- placing a spacer in the hollow in the first part,
- stacking a second part on the first part so that a flat peripheral surface of the second part is in contact with the flat peripheral surface of the first part and such that a fluid chamber is defined between them, the spacer including a projection which is received in a rebate in one of the flat peripheral surfaces, the rebate forming an aperture when the flat peripheral surfaces of the first and second parts are in contact, and
- brazing the first and second parts and the spacer together.
Dependencies are inferred from the claim text.