초록 ▼

The exhaust system has an exhaust comprising at least one silencer and/or catalytic converter which has a housing with a housing casing having a material thickness of not more than 1 mm and with housing ends. The exhaust furthermore has metallic pipes which are rigidly connected to said housing ends

The exhaust system has an exhaust comprising at least one silencer and/or catalytic converter which has a housing with a housing casing having a material thickness of not more than 1 mm and with housing ends. The exhaust furthermore has metallic pipes which are rigidly connected to said housing ends and at least one of which has a material thickness of, likewise, not more than 1 mm. The retaining element for holding the exhaust on the vehicle body has, for each housing end, a holder with a metallic retaining member connected to the pipe connected to the housing end or possibly to the housing itself. The at least one pipe having a material thickness of not more than 1 mm and to which the retaining member is connected or the housing casing to which the retaining member is connected is surrounded by a sleeve-like reinforcing element to which the retaining member is fastened, for example, by welding or brazing or adhesive bonding.

대표청구항 ▼

The exhaust system has an exhaust comprising at least one silencer and/or catalytic converter which has a housing with a housing casing having a material thickness of not more than 1 mm and with housing ends. The exhaust furthermore has metallic pipes which are rigidly connected to said housing ends

The exhaust system has an exhaust comprising at least one silencer and/or catalytic converter which has a housing with a housing casing having a material thickness of not more than 1 mm and with housing ends. The exhaust furthermore has metallic pipes which are rigidly connected to said housing ends and at least one of which has a material thickness of, likewise, not more than 1 mm. The retaining element for holding the exhaust on the vehicle body has, for each housing end, a holder with a metallic retaining member connected to the pipe connected to the housing end or possibly to the housing itself. The at least one pipe having a material thickness of not more than 1 mm and to which the retaining member is connected or the housing casing to which the retaining member is connected is surrounded by a sleeve-like reinforcing element to which the retaining member is fastened, for example, by welding or brazing or adhesive bonding. 60700, Robertson, 166/297; US-4798244, 19890100, Trost; US-4799829, 19890100, Kenny; US-4905759, 19900300, Wesson et al.; US-4960171, 19901000, Parrott et al.; US-5135050, 19920800, Tailby; US-5435394, 19950700, Robertson; US-5636692, 19970600, Haugen, 166/298; US-5690171, 19971100, Winch et al.; US-5709265, 19980100, Haugen et al., 166/055.2; US-5791417, 19980800, Haugen et al., 166/298; US-5813465, 19980900, Terrell et al.; US-5862862, 19990100, Terrell; US-6016753, 20000100, Glenn et al.; US-6024169, 20000200, Haugen, 166/298; US-6035935, 20000300, Regalbuto; US-6135206, 20001000, Gano et al.; US-6202752, 20010300, Kuck et al., 166/298 transmission signals from the reader device; programming the reader device to transmit a control signal to the process tool upon reception of the unique code signal from the identification device; transporting the identification device through the well past the reader device; and transmitting the control signal to control the process tool upon reception of the unique code signal from the identification device. 11. The method of claim 10 wherein the locating step comprises attaching the process tool to a tubular and placing the tubular at the required depth. 12. The method of claim 10 wherein the locating step comprises conveying the process tool to the required depth on a casing of the well. 13. The method of claim 10 wherein the locating step comprises conveying the process tool to the required depth on a tubing string of the well. 14. The method of claim 10 wherein the transporting step is performed by gravity. 15. The method of claim 10 wherein the transporting step is performed by a mechanism selected from the group consisting of a pump, a robot and a parachute. 16. A method for performing an operation in a well comprising: providing a first process tool at a first depth in the well and a second process tool at a second depth in the well; providing a first reader device in the well configured to control the first process tool and a second reader device in the well configured to control the second process tool; transporting a first radio identification device through the well proximate to the first reader device, and a second identification device through the well proximate to the second reader device, the first identification device configured to transmit a first code signal to the first reader device, and the second identification device configured to transmit a second code signal to the second reader device; controlling the first process tool responsive to the first reader device receiving the first code signal during the transporting step; and controlling the second process tool responsive to the second reader device receiving the second code signal during the transporting step. 17. The method of claim 16 wherein the first identification device and the second identification device comprise a single radio identification device. 18. The method of claim 16 wherein the first process tool and the second process tool comprise perforating tools. 19. A method for performing a perforating process in a well comprising: providing a casing in the well having an outside diameter and an inside diameter; providing a perforating tool on the outside diameter of the casing; providing a first device in the well configured to control the perforating tool; providing a second device configured to transmit a code signal to the first device; transporting the second device through the inside diameter of the casing proximate to the first device; and controlling the perforating tool responsive to the first device receiving the code signal from the second device during the transporting step. 20. The method of claim 19 further comprising conveying the perforating tool to a selected depth in the well on the casing. 21. The method of claim 19 wherein the first device is attached to the casing proximate to the perforating tool. 22. The method of claim 19 wherein the first device is attached to the perforating tool. 23. A method for performing a perforating process in a well having well casing positioned therein, the method comprising: providing a perforating tool in the well configured to perforate the well casing; providing a first device in the well in signal communication with the perforating tool and configured to transmit and receive rf signals; providing a second device configured to generate a unique rf code signal responsive to rf signals from the first device; transporting the second device through the casing proximate to the first device; and controlling the perforating tool responsive to reception of the uniqu e rf code signal by the first device during the transporting step. 24. The method of claim 23 wherein providing the perforating tool comprises attaching the perforating tool to an outside diameter of the casing. 25. The method of claim 23 wherein providing the well casing comprises lowering a plurality of attached tubulars into the well, and providing the perforating tool comprises attaching the perforating tool to at least one of the tubulars. 26. The method of claim 23 wherein the perforating tool is configured to perforate the casing from an outside diameter thereof. 27. A method for performing a perforating process in a well bore having casing positioned therein comprising: providing a perforating tool on the outside diameter of the casing by attaching the perforating tool to at least one of a plurality of tubulars that comprise the casing; providing a reader device on the casing configured to control the perforating tool; providing an identification device configured to transmit a unique rf code signal to the reader device; transporting the identification device through the inside diameter of the casing proximate to the reader device; and actuating the perforating tool to perforate the casing responsive to the reader device receiving the unique rf code signal from the identification device during the transporting step. 28. The method of claim 27 wherein providing the reader device comprises providing a collar for the tubulars comprising an electrically non conductive window and attaching the reader device to the collar proximate to the window. 29. The method of claim 27 wherein the transporting step is performed by pumping a fluid through the inside diameter of the casing. 30. The method of claim 27 wherein the transporting step is performed by dropping the reader device by gravity through the inside diameter of the casing. 31. The method of claim 27 wherein the transporting step is performed by attaching the reader device to a robot and moving the robot through the inside diameter of the casing. 32. A method for performing a perforating process in a well comprising: attaching a perforating tool to an outside diameter of a tubular, said perforating tool comprising a plurality of charge assemblies and a reader device configured to initiate a detonation sequence for the charge assemblies; attaching the tubular to a plurality of tubulars and lowering the tubular with the perforating tool attached thereto to a selected depth in the well to form a well casing; transporting an identification device through the well casing proximate to the reader device, said identification device configured to transmit a unique code signal to the reader device; transmitting the unique code signal to the reader device during the transporting step; and initiating the detonation sequence to perforate the casing responsive to reception of the unique code signal by the reader device. 33. The method of claim 32 further comprising attaching a second perforating tool to the casing and transmitting a second identification device through the casing to initiate detonation of the second perforating tool. 34. The method of claim 32 wherein the casing comprises a coupling for attaching the perforating tool comprising an electrically non conductive window for the reader device. 35. The method of claim 32 wherein the identification device comprises a radio identification device and the unique code signal comprises an rf signal. 36. The method of claim 32 wherein the perforating tool comprises a hydraulic detonator and a perforating gun configured to establish fluid communication between the hydraulic detonator and the well casing during the detonation sequence. 37. The method of claim 32 further comprising providing a valve in the casing and closing the valve responsive to reception of the unique code signal by the reader device. 38. The method of claim 32 further comprising providing a valve in the casing responsive to a pressure generated