Device for Storing and Supplying Ammonia and Exhaust Line Equipped With Such a Device
First Claim
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1. A device for storing and supplying ammonia for an exhaust line of an automobile vehicle, the device comprising:
- a solid material provided for absorbing ammonia, the solid material comprising solid elements with a mass of less than 50 grams;
a reservoir for storing the solid material;
a heating unit to heat the solid material to desorb the ammonia, the heating unit being insulated from the reservoir;
a first assembly to transfer the solid elements from the reservoir to the heating unit;
a supply conduit fluidically connecting the heating unit to an exhaust line;
a probe that measures a pressure in the conduit; and
a computer programmed to order a discharge of depleted solid element(s) from the heating unit to as far as a storage area and the transfer of one or several other solid elements from the reservoir to as far as the heating unit depending on the pressure of ammonia in the supply conduit.
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Abstract
A device for storing and supplying ammonia to an exhaust line of an automobile vehicle, includes a solid material provided for absorbing the ammonia, a reservoir for storing the solid material, and a heating unit to heat the solid material to desorb the ammonia. The solid material comprises solid elements with a mass of less than 50 grams. The heating unit is insulated from the reservoir. The device also includes a first assembly for transferring solid elements from the reservoir to the heating unit.
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Citations
18 Claims
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1. A device for storing and supplying ammonia for an exhaust line of an automobile vehicle, the device comprising:
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a solid material provided for absorbing ammonia, the solid material comprising solid elements with a mass of less than 50 grams; a reservoir for storing the solid material; a heating unit to heat the solid material to desorb the ammonia, the heating unit being insulated from the reservoir; a first assembly to transfer the solid elements from the reservoir to the heating unit; a supply conduit fluidically connecting the heating unit to an exhaust line;
a probe that measures a pressure in the conduit; and
a computer programmed to order a discharge of depleted solid element(s) from the heating unit to as far as a storage area and the transfer of one or several other solid elements from the reservoir to as far as the heating unit depending on the pressure of ammonia in the supply conduit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An exhaust line of an automobile vehicle comprising:
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an exhaust conduit; and a device for storing and supplying ammonia to the exhaust conduit, the device comprising a solid material provided for absorbing ammonia, the solid material comprising solid elements with a mass of less than 50 grams, a reservoir for storing the solid material, a heating unit to heat the solid material to desorb the ammonia, the heating unit being insulated from the reservoir, a first assembly to transfer the solid elements from the reservoir to the heating unit, a supply conduit fluidically connecting the heating unit to an exhaust line;
a probe that measures a pressure in the conduit; and
a computer programmed to order a discharge of depleted solid element(s) from the heating unit to as far as a storage area and the transfer of one or several other solid elements from the reservoir to as far as the heating unit depending on the pressure of ammonia in the supply conduit.
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14. A method for supplying an exhaust line with ammonia from a storage and supply device comprising a solid material provided for absorbing ammonia, the solid material comprising solid elements with a mass of less than 50 grams, a reservoir for storing the solid material, a heating unit to heat the solid material to desorb the ammonia, the heating unit being insulated from the reservoir, a first assembly to transfer the solid elements from the reservoir to the heating unit, a supply conduit fluidically connecting the heating unit to an exhaust line;
- a probe that measures a pressure in the conduit; and
a computer programmed to order a discharge of depleted solid element(s) from the heating unit to as far as a storage area and the transfer of one or several other solid elements from the reservoir to as far as the heating unit depending on the pressure of ammonia in the supply conduit, the method comprising the following steps;transferring one or several solid elements from the reservoir into the heating unit; heating the solid element(s) and directing desorbed ammonia towards the exhaust line; discharging the one or more solid elements out of the heating unit when the solid elements are at least partly depleted; and transferring one or several other solid elements from the reservoir into the heating unit. - View Dependent Claims (15)
- a probe that measures a pressure in the conduit; and
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16. A method for maintenance of the storage and supply device including a solid material provided for absorbing ammonia, the solid material comprising solid elements with a mass of less than 50 grams, a reservoir for storing the solid material, a heating unit to heat the solid material to desorb the ammonia, the heating unit being insulated from the reservoir, a first assembly to transfer the solid elements from the reservoir to the heating unit, a supply conduit fluidically connecting the heating unit to an exhaust line;
- a probe that measures a pressure in the conduit; and
a computer programmed to order a discharge of depleted solid element(s) from the heating unit to as far as a storage area and the transfer of one or several other solid elements from the reservoir to as far as the heating unit depending on the pressure of ammonia in the supply conduit, wherein the reservoir is normally rigidly attached to an automobile vehicle, ammonia-loaded solid elements being introduced into the reservoir while the reservoir is rigidly attached to the automobile vehicle. - View Dependent Claims (17, 18)
- a probe that measures a pressure in the conduit; and
Specification