Abstract: A compact pressure regulator (10?) has a body (20?) having a fuel inlet (23) and a fuel outlet (25) defining a fuel chamber (22?). A valve seat (24?) is defined in the body at the fuel outlet. A valve element (26?) is movable between open and closed positions and has a seating surface (36) that engages the valve seat in the closed position. A housing (46) has a proximal end (56) coupled to the body with a distal end (58) of the body having a housing fuel outlet (60). A coil compression spring (40) is disposed between the valve element and the housing and is constructed and arranged to bias the valve element to the closed position. The valve element includes a spring engaging surface (50) that engages one end of the spring and the housing includes spring retaining structure (44) engaging the other end of the spring.

Abstract: The piezoelectric element of an engine knock sensor is held between upper and lower ring-shaped bases by two identical clips that extend through the piezoelectric element and engage each base. Each clip has a ring-shaped flange engaging a groove circumscribing the inner wall of one of the bases, with the flanges of the clips engaging opposite bases. Also, each clip has three legs that engage a groove in the opposite base. Each clip leg is disposed between two legs of the other clip.

Abstract: The piezoelectric element of an engine knock sensor is held between upper and lower ring-shaped bases by two identical clips that extend through the piezoelectric element and engage each base. Each clip has a ring-shaped flange engaging a groove circumscribing the inner wall of one of the bases, with the flanges of the clips engaging opposite bases. Also, each clip has three legs that engage a groove in the opposite base. Each clip leg is disposed between two legs of the other clip.