摘要:
A shield for a diesel exhaust fluid injector is mounted horizontally in an opening in a side wall of an exhaust gas aftertreatment system of an internal combustion engine. The diesel exhaust fluid injector configured to inject diesel exhaust fluid in a direction generally normal to the side wall into a mixer positioned in an exhaust gas stream. The shield may include a first portion extending axially and a second portion extending radially inwardly from the first portion.
摘要:
A method for producing a corrosion resistant metal substrate and corrosion resistant metal substrate provided thereby. The method involves forming a plated substrate including a metal substrate provided with a nickel layer or with a nickel and cobalt layer followed by electrodepositing a molybdenum oxide layer from an aqueous solution onto the plated substrate, which is subsequently subjected to an annealing step in a reducing atmosphere to reduce the molybdenum oxide in the molybdenum oxide layer to molybdenum metal in a reduction annealing step and to form a diffusion layer which contains nickel and molybdenum, and optionally cobalt.
摘要:
A honeycomb body, in particular a catalyst carrier body, includes metallic foil of high-temperature corrosion-resistant steel with connecting points and an oxide layer with a thickness of 60 to 80 or 70 to 75 nm on each surface. The foil is composed of steel with chromium and aluminum components, particularly 1 to 5% aluminum. The oxide layer is substantially aluminum oxide or γ-aluminum oxide with a uniform thickness having a tolerance of less than 10% or less than 5% on all surfaces. The oxide layer may be on a rolled foil having a mean surface roughness of greater than 0.3 or 0.5 μm or approximately 0.6 μm in rolling direction and/or transversely thereto. The honeycomb body is durable under high loads and has defined connecting points. A foil having an oxide coat and a method for producing an oxide coat on a metallic foil are also provided.
摘要:
An emission reduction device which may be removably affixed to a diesel engine's exhaust system. The device comprises an outer casing which may be divided into a lower portion and an upper portion, the lower portion of which is removably attachable to the exhaust system of a diesel engine; a carcass for holding a bobbin wherein the carcass is attached to the lower portion of the outer casing at the point where the exhaust enters the outer casing and the carcass has a beveled opening in a diagonal line in its proximal part and a bobbin positioned in its distal part; one or more fibrous blanket cylinders; and a guide for arranging and securing the one or more fibrous blanket cylinders within the outer casing. The fibrous blanket cylinders may be wrapped in a wire mesh. In an alternative embodiment, a second fibrous blanket formed into a cone with the larger diameter of the cone positioned proximally may be removably inserted in the carcass.
摘要:
An emission reduction device which may be removably affixed to a diesel engine's exhaust system. The device comprises an outer casing which may be divided into a lower portion and an upper portion, the lower portion of which is removably attachable to the exhaust system of a diesel engine; a carcass for holding a bobbin wherein the carcass is attached to the lower portion of the outer casing at the point where the exhaust enters the outer casing and the carcass has a beveled opening in a diagonal line in its proximal part and a bobbin positioned in its distal part; one or more fibrous blanket cylinders; and a guide for arranging and securing the one or more fibrous blanket cylinders within the outer casing. The fibrous blanket cylinders may be wrapped in a wire mesh. In an alternative embodiment, a second fibrous blanket formed into a cone with the larger diameter of the cone positioned proximally may be removably inserted in the carcass.
摘要:
Disclosed is a personal watercraft capable of preventing an exhaust gas from contaminating a transom board in the vicinity of an exhaust outlet and of reducing an exhaust noise of the exhaust gas within a wide speed range. The personal watercraft having an engine disposed in a body thereof for driving a water jet pump comprises, an exhaust outlet 2D formed at a rear end of an exhaust passage Ep extending from an exhaust port of the engine E to a transom board Tm of the watercraft so as to open rearwardly; a flexible sheet member 3 disposed at the exhaust outlet and having a closing portion 3A capable of opening/closing the exhaust outlet by an exhaust pressure of the exhaust gas; and a short pipe 5P mounted to the outside of the transom board and extending rearwardly from the transom board Tm so as to surround the closing portion 3A of the sheet member 3, for introducing the exhaust gas rearwardly.
摘要:
A heat-resistant casing for an internal combustion engine comprises an outer wall member made of an aluminum alloy by casting and an inner wall member made of ceramic and embedded in the outer wall member at the time of casting of the outer wall member. A coolant jacket is formed in the outer wall member and is communicated with a source of cooling medium so that cooling medium circulates through the coolant jacket.
摘要:
A device for conducting away exhaust gases from internal combustion engines comprises at least one sleeve-shaped silencer which encloses an exhaust pipe and forms an enclosed space around said exhaust pipe. The silencer is made up of at least two sleeve-shaped parts, or of a sleeve-shaped part and base part, which are joined together. The portion of the exhaust pipe in the space inside the silencer features perforations and/or sound absorbing elements. The inside of the silencer may be fitted with sound absorbers. The sleeve-shaped parts of the silencer and, if desired, the exhaust pipe and/or the sound absorbers are made of aluminum and/or an aluminum alloy.The sleeve-shaped parts of the silencer are manufactured by impact extrusion, deep drawing or a similar method and are joined together preferably radial to their longitudinal axis. The ends these parts taper down to tube-shaped extensions which fit over the exhaust pipe.To join the sleeve-shaped parts and the tube-shaped extensions to the exhaust pipe a region is provided on which an interlocking profile is created by electromagnetic forces.
摘要:
An external housing for an exhaust muffler comprising at least one pipe section having one seamlessly converging end and at least one connecting piece seamlessly extending from the converging end, produced as a one-piece extrusion molded body of a malleable aluminum alloy. The housing may include a second pipe section joined undetachably to the first in alignment therewith. A seating part, e.g., a pipe socket, may be formed integrally with the converging end of the pipe section, projecting from that end into the interior of the pipe section.
摘要:
A method of forming an exhaust gas conduit tube wherein a plurality of captured take-up slots in the tubular wall define a deformable region near a free end of the tube, which region will cooperate with clamping means encircling the region to clamp the tube to a second tube inserted telescopically therein. The captured nature of the slots enhances the structural integrity of the tube end. The method includes forming the apertures along an edge of flat steel stock, rolling the steel stock into a tube wherein the apertures are adjacent a free end and welding the longitudinal seam. The free end portion is further flared for strength and to facilitate entry of a second tube.