Abstract: A flexible fuel rail system for fuel injection systems for internal combustion piston engines, particularly for engines having at least one or more banks of aligned cylinders. The fuel rail system incorporates two or more longitudinal fuel rails, connected by one or more crossover sections. The crossover section(s) include(s) one or more sections of enhanced flexibility, preferably corrugations. The fuel rails, crossover sections and sections of enhanced flexibility are preferably all fabricated from metal, preferably monolithically formed from a single piece of metal. The fuel rails preferably are provided with non-circular cross-sectional configurations, so that the walls of the fuel rails will flex, under the influence of fuel pressure pulsations caused by the fuel injectors, so as to substantially reduce or eliminate the negative impacts of such pulsations on the operation of the other injectors in the fuel injection system.

Abstract: A flexible fuel rail system for fuel injection systems for internal combustion piston engines, particularly for engines having at least one or more banks of aligned cylinders. The fuel rail system incorporates two or more longitudinal fuel rails, connected by one or more crossover sections. The crossover section(s) include(s) one or more sections of enhanced flexibility, preferably corrugations. The fuel rails, crossover sections and sections of enhanced flexibility are preferably all fabricated from metal, preferably monolithically formed from a single piece of metal. The fuel rails preferably are provided with non-circular cross-sectional configurations, so that the walls of the fuel rails will flex, under the influence of fuel pressure pulsations caused by the fuel injectors, so as to substantially reduce or eliminate the negative impacts of such pulsations on the operation of the other injectors in the fuel injection system.

Abstract: A flexible coupler apparatus for joining successive lengths of pipe in an exhaust system for a vehicle. A pipe inner member is insertingly received in the adjacent ends of two pipe adapter members which are affixed to respective adjacent pipe ends. A first spacer member is radially and axially enclosed between the end of one of the adapter members and the pipe inner member. A second spacer member is radially and axially enclosed between the end of the other of the adapter members and the pipe inner member. A flexible, extensible sealing member mechanically connects the adapter members, and, in turn, the pipe ends.

Abstract: A thermal isolation coupling system for attaching a high-temperature fluid-bearing tube to an aperture in a housing, in which a separate low temperature flow is established. Locking means attaches the tube end to the housing, in a particular desired position relative to the aperture. A tube support member connects the tube end to the locking means and facilitates positioning of the extreme tip of the tube end in the low temperature flow, in substantially non-heat conducting isolation from the aperture and the housing.