Leaf spring bracket
View Patent ↗A system for mounting a catalytic converter of an exhaust system to an internal combustion engine includes a bracket adapted to fix the catalytic converter to the engine. A strap is adapted to circumferentially extend about a portion of the catalytic converter and clamp the catalytic converter to the bracket. The bracket includes a seat, a mounting pad and a compliant portion interconnecting the seat and the mounting pad. The seat supports a portion of the catalytic converter opposite the strap. The compliant portion includes a slot extending adjacent to the seat to reduce the stiffness of the bracket and allow the bracket to deflect during thermal expansion of the catalytic converter.
1. A system for mounting a catalytic converter of an exhaust system to an internal combustion engine, the mounting system comprising:
a bracket adapted to fix the catalytic converter to the engine; and
a strap adapted to circumferentially extend about a portion of the catalytic converter and clamp the catalytic converter to the bracket, wherein the bracket includes a seat to support a portion of the catalytic converter opposite the strap, a mounting pad and a compliant portion interconnecting the seat and the mounting pad, the compliant portion including a slot circumferentially extending adjacent to the seat at an angle greater than ninety degrees to reduce the stiffness of the bracket and allow the bracket to deflect during thermal expansion of the catalytic converter, the seat circumferentially extending an angle greater than one hundred degrees and including a substantially cylindrically shaped surface adapted to engage the catalytic converter, the cylindrically shaped surface including a longitudinal axis extending parallel to the mounting pad.
2. The system of claim 1 , wherein the compliant portion includes a substantially flat, constant thickness, plate having a circumferentially extending rib adjacent to the slot.
3. The system of claim 2 , further including an upturned flange extending along an outer portion of the mounting pad.
4. A system for mounting a catalytic converter of an exhaust system to an internal combustion engine, the mounting system comprising:
a bracket adapted to fix the catalytic converter to the engine; and
a strap adapted to circumferentially extend about a portion of the catalytic converter and clamp the catalytic converter to the bracket, wherein the bracket includes a seat to support a portion of the catalytic converter opposite the strap, a mounting pad and a compliant portion interconnecting the seat and the mounting pad, the compliant portion including a slot extending adjacent to the seat to reduce the stiffness of the bracket and allow the bracket to deflect during thermal expansion of the catalytic converter, wherein the seat, the mounting pad, and the compliant portion are portions of a contiguous, constant thickness panel.
5. The system of claim 4 , wherein the panel includes a stamped metal sheet.
6. The system of claim 1 , wherein the compliant portion includes a Y-shaped spring section including spaced apart distal ends, the strap having opposite ends coupled to the distal ends.
7. The system of claim 6 , wherein one end of the strap is pivotally coupled to the bracket.
8. The system of claim 7 , wherein the strap includes eyelets in receipt of a pin to form a pivot joint.
9. The system of claim 1 , wherein the mounting pad extends at substantially ninety degrees to the compliant portion.
10. A system for mounting a catalytic converter of an exhaust system to an internal combustion engine, the mounting system comprising:
a bracket adapted to fix the catalytic converter to the engine; and
a strap adapted to circumferentially extend about a portion of the catalytic converter and clamp the catalytic converter to the bracket, wherein the bracket includes a seat to support a portion of the catalytic converter opposite the strap, a mounting pad and a compliant portion interconnecting the seat and the mounting pad, the compliant portion including a slot extending adjacent to the seat to reduce the stiffness of the bracket and allow the bracket to deflect during thermal expansion of the catalytic converter, wherein the bracket includes a first hinge having a reduced cross-section positioned between the mounting pad and the compliant portion, the first hinge allowing relative movement between the mounting pad and the seat to distribute stress during thermal growth of the catalytic converter.
11. The system of claim 10 , wherein the bracket includes a second hinge having a reduced cross-section by being positioned at one of the ends of the slot and a third hinge having a reduced cross-section by being positioned at the other end of the slot.
12. A system for mounting a catalytic converter of an exhaust system to an internal combustion engine, the mounting system comprising:
a monolithic bracket having a substantially constant thickness and being adapted to fix the catalytic converter to the engine, the bracket including a seat adapted to support a portion of the catalytic converter; and
a mounting pad and a compliant portion interconnecting the seat and the mounting pad, the compliant portion including first, second and third hinges having reduced cross-sections to allow relative movement between the seat and the mounting pad during thermal expansion of the catalytic converter.
13. The system of claim 12 , wherein the mounting pad extends at substantially ninety degrees to the compliant portion and the first hinge is positioned at their juncture.
14. The system of claim 13 , wherein a slot circumferentially extends adjacent to the seat an angle greater than ninety degrees.
15. The system of claim 14 , wherein the second and third hinges are positioned at the ends of the slot.
16. The system of claim 14 , wherein the slot defines a Y-shaped leaf spring.
17. The system of claim 12 , further including a strap adapted to circumferentially extend about a portion of the catalytic converter and clamp the catalytic converter to the bracket.
18. The system of claim 17 , wherein one end of the strap is pivotally coupled to the bracket.
19. The system of claim 12 , further including another seat circumferentially spaced apart from the seat and being adapted to support a portion of the catalytic converter, wherein the first hinge is positioned proximate the seat and the second hinge is positioned proximate the another seat.
20. The system of claim 19 , wherein the seat and the another seat are adapted to be fixed to the catalytic converter with the remaining portions of the bracket adapted to be spaced apart from the catalytic converter.
21. The system of claim 20 , wherein the seat includes a slot adapted to receive a fastener for fixing the catalytic converter to the bracket.