1. A computer enclosure, comprising:
a front panel having a flange, the flange defining a slot;
a side panel having a flange holder corresponding to the flange; and
a latch attached to the side panel, the latch having a clasp corresponding to the slot,
wherein the clasp is engaged in the slot for preventing the side panel from moving in a first direction, and the flange holder cooperates with the flange for restricting movement of the side panel in a second direction opposite to the first direction.
2. The computer enclosure as described in claim 1, wherein the side panel defines an opening, and the latch has a button accessible through the opening.
3. The computer enclosure as described in claim 1, wherein the first direction is perpendicular to the front panel.
4. The computer enclosure as described in claim 1, wherein at least one tab is formed on the clasp.
5. The computer enclosure as described in claim 4, wherein a bevel edge is formed in a front portion of the tab.
6. The computer enclosure as described in claim 5, wherein a vertical engaging edge opposite to the bevel edge is formed on the tab for engaging with an edge of the slot.
7. The computer enclosure as described in claim 1, wherein the latch further comprises a fixing portion for attaching the latch to the side panel.
8. The computer enclosure as described in claim 1, wherein the latch is attached to an inner side of the side panel.
9. The computer enclosure as described in claim 1, wherein a restricting clip is perpendicularly bent from the side panel with a free distal end parallel to the side panel for restricting movement of the latch.
10. A latch assembly of a computer enclosure, comprising:
a front panel defining a slot therein; and
a side panel having a latch thereon, the latch being flexible in a direction perpendicular to the side panel, a clasp being formed at an end portion of the latch, wherein the clasp has a bevel portion for lifting up the clasp and a vertical portion for engaging with an edge of the slot.
11. The latch assembly as described in claim 10, wherein the front panel has a flange perpendicular thereto, and a slot is defined therein.
12. The latch assembly as described in claim 11, wherein the engaging portion has a tab, and the bevel portion and the vertical portion are formed thereon.
13. The latch assembly as described in claim 12, wherein a plurality of flange holders is formed on the side panel for holding the flange of the front panel.
14. The latch assembly as described in claim 10, wherein the side panel defines an opening, and the latch has a button accessible through the opening.
15. The latch assembly as described in claim 10, wherein the latch further comprises a fixing portion for attaching the latch to the side panel.
16. The latch assembly as described in claim 10, wherein the latch is attached to an inner side of the side panel.
17. The latch assembly as described in claim 10, wherein a restricting clip is perpendicularly bent from the side panel with free distal end parallel to the side panel for restricting movement of the latch.
18. An electronic device comprising:
an enclosure of said electronic device enclosing said electronic device;
a panel removably attachable to said enclosure and extending along a side of said enclosure in order to cover said side of said enclosure when said panel is attached to said side of said enclosure, and to reveal an interior of said enclosure via said side of said enclosure when said panel is detached from said side of said enclosure;
a latch selectively attachable to one of said panel and a portion of said enclosure neighboring said side of said enclosure, and installable to be flush with said side of said enclosure without disturbing in a first position thereof, said latch being movable between said first position thereof where said latch is able to engage with the other of said panel and said portion of said enclosure to secure said panel to said enclosure, and a second position thereof where said latch moves toward said interior of said enclosure to release said panel from said enclosure, said latch defining a button thereat to be exposable from said one of said panel and said portion of said enclosure in order to be user-accessible for triggering movement of said latch from said first position thereof to said second position thereof.
19. The electronic device as described in claim 18, wherein said portion of said enclosure is another panel of said enclosure extending perpendicular to said side of said enclosure.
20. The electronic device as described in claim 18, wherein said button of said latch is exposable from an opening formed at said one of said panel and said portion of said enclosure, and is flush with an inner bottom of said opening without protruding therefrom.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A particulate filter for a vehicle exhaust system, comprising:
a primary filter, a secondary filter, and a quenching agent injection nozzle arranged upstream of the primary filter; and
an exhaust-gas path running through the primary filter in a normal mode and through the secondary filter in a fail-safe mode;
wherein in the fail-safe mode, the quenching agent injection nozzle delivers pressurized nitrogen or water to the primary filter.
2. The particulate filter of claim 1, wherein the particulate filter is operated in the fail-safe mode during an overload of the primary filter.
3. The particulate filter of claim 2, wherein the secondary filter surrounds the primary filter.
4. The particulate filter of claim 3, wherein a valve for diverting the exhaust-gas path is arranged upstream of the primary filter.
5. The particulate filter of claim 4, wherein a further valve for diverting the exhaust-gas path is arranged upstream of the secondary filter.
6. The particulate filter of claim 3, wherein the quenching agent injection nozzle is arranged in an inlet region of the primary filter, and wherein the inlet region of the primary filter is downstream of an inlet region of the secondary filter.
7. The particulate filter of claim 6, wherein the primary filter comprises either a wall-flow filter or a through-flow filter, andor wherein the secondary filter comprises either a wall-flow filter or a through-flow filter.
8. The particulate filter of claim 1, further comprising an exhaust-gas path running through the primary filter and an exhaust-path running through the secondary filter in a mixed mode, wherein the quenching agent injection nozzle delivers quenching agent to the primary filter in the mixed mode.
9. A method for purification of an exhaust-gas flow of an engine of a vehicle, comprising:
flowing exhaust gas through a primary filter; flowing exhaust gas through a secondary filter during an overload of the primary filter; and
injecting a quenching agent into the primary filter during the overload of the primary filter;
wherein the quenching agent comprises pressurized nitrogen or water.
10. The method of claim 9, wherein the exhaust-gas flow is distributed between the primary filter and the secondary filter by means of a valve.
11. The method of claim 10, wherein the valve regulates an oxygen concentration in the exhaust-gas flow.
12. The method of claim 9, wherein the quenching agent regulates an oxygen concentration in the exhaust-gas flow.
13. The method of claim 9, wherein the quenching agent forms a heat sink for the exhaust-gas flow.
14. The method of claim 9, wherein the primary filter is a wall-flow filter and the secondary filter is a through-flow filter.
15. The method of claim 14, further comprising regenerating the primary filter during the overload and adjusting injection of the quenching agent if engine shutdown is initiated during the regeneration.
16. A method for purification of engine exhaust, comprising:
flowing exhaust through a primary filter; and when regeneration of the primary filter is desired:
flowing at least some of the exhaust through a secondary filter surrounding the primary filter while regenerating the primary filter;
injecting a quenching agent into the primary filter; and
adjusting the quenching agent injection if engine shutdown is initiated during the regeneration;
wherein the quenching agent comprises pressurized nitrogen or water.
17. The method of claim 16, wherein a rate of the quenching agent injection is based on one or more of exhaust pressure, exhaust temperature, exhaust composition, and an opening degree of a valve distributing exhaust flow between the primary filter and the secondary filter.
18. The method of claim 17, wherein adjusting the quenching agent injection if engine shutdown is initiated during the regeneration comprises increasing the rate of the quenching agent injection.
19. The method of claim 16 further comprising, if engine shutdown is initiated during the regeneration, continuing the quenching agent injection after shutdown if a temperature of the primary filter exceeds a threshold at shutdown, and stopping the quenching agent injection once the temperature of the primary filter falls below the threshold.