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BR-102021000474-B1 - MEASURING PIN DEVICE, MULTIATOR DAMPING SYSTEM, AND IMPACT DAMPER ASSEMBLY

BR102021000474B1BR 102021000474 B1BR102021000474 B1BR 102021000474B1BR-102021000474-B1

Abstract

MEASURING PIN DEVICE, MULTIATOR DAMPING SYSTEM, AND IMPACT DAMPER ASSEMBLY. A measuring pin for use in a multiactor damping system is disclosed in this document. The multiactor damping system can be used in an impact damper assembly to change a damping curve of the impact damper assembly. The measuring pin can be configured to transition the multiactor damping system from a first damping agent configuration to a second damping agent configuration. The first damping actor configuration can correspond to a first damping curve. The second damping actor configuration can correspond to a second damping curve. The first damping curve being different from the second damping curve.

Inventors

  • KYLE M. MADEY

Assignees

  • GOODRICH CORPORATION

Dates

Publication Date
20260317
Application Date
20210112
Priority Date
20200113

Claims (17)

  1. 1. Measuring pin apparatus, comprising: an elongated member (805) extending from a first end (801) to a second end (809), the elongated member (805) defining an axis, the elongated member (805) including a first side (802), a second side (804), a third side (806), and a fourth side (808), the first side (802) disposed opposite the third side (806) and the second side (804) disposed opposite the fourth side (808), the elongated member (805) being configured to transfer torque around the axis; a first groove profile (810) disposed on the first side (802), the first groove profile (810) comprising a first groove (812); and a second channel profile (820) disposed on the second side (804), the second channel profile (820) comprising a second groove (822, 842), characterized in that: the first channel profile (810) extends for a first length along the elongated member (805), the second channel profile (820) extends for a second length along the elongated member (805), said first length is greater than said second length, the first channel profile (810) is further disposed on the third side (806), and the second channel profile (820) is further disposed on the fourth side (808).
  2. 2. Measuring pin apparatus according to claim 1, characterized in that the first groove (812) and the second groove (822, 842) are V-shaped grooves.
  3. 3. Measuring pin apparatus according to claim 1, characterized in that a cross-section of the elongated member (805) is trapezoidal.
  4. 4. Measuring pin apparatus according to claim 1, characterized in that a cross-section of the elongated member (805) is square.
  5. 5. Multi-actor damping system comprising: a main orifice plate (180); and a measuring pin (140) configured to transfer torque from the measuring pin (140) to the main orifice plate (180), the measuring pin (140) configured to translate relative to the main orifice plate (180), the measuring pin (140) being further configured to make a transition of the multi-actor damping system from a first damping actor configuration (2002, 2102) which includes a first damping curve to a second damping actor configuration (2004, 2104) which includes a second damping curve, the first damping curve being different from the second damping curve; characterized by the fact that it further comprises a flow restrictor (162, 164) coupled to the main orifice plate (180), the flow restrictor (162, 164) being configured to contact the measuring pin (140) in the first damping actor configuration (2002, 2102), the flow restrictor (162, 164) being further configured to be separated from the measuring pin (140) in that second damping actor configuration (2004, 2104).
  6. 6. Multi-actor damping system according to claim 5, characterized in that said measuring pin (140) comprises an elongated body (805) extending from a first end (801) to a second end (809), the elongated body (805) including a first side (802), a second side (804), a third side (806), and a fourth side (808), wherein the first side (802) is arranged opposite the third side (806), and wherein the second side (804) is arranged opposite the fourth side (808).
  7. 7. Multi-actor damping system according to claim 6, characterized in that the first side (802) comprises a first groove (812) and the second side (804) comprises a second groove (822, 842).
  8. 8. Multi-actor damping system according to claim 7, characterized in that the first groove (812) extends through a first length of the measuring pin (140), wherein the second groove (822, 842) extends through a second length of the measuring pin (140), wherein the first length is greater than the second length.
  9. 9. Multi-actor damping system according to claim 5, characterized in that the main orifice plate (180) comprises an opening (165), wherein said opening (165) is complementary to a cross-sectional shape of the measuring pin (140).
  10. 10. Multi-actor damping system according to claim 9, characterized in that the measuring pin (140) is disposed through the opening (165).
  11. 11. Multi-actor damping system according to claim 5, characterized in that it further comprises a damping actor selector (170) configured to rotate the measuring pin (140) and the main hole plate (180).
  12. 12. Multi-actor damping system according to claim 5, characterized in that: the measuring pin (140) defines an axis, the measuring pin (140) is configured to translate axially along the axis, and the measuring pin (140) is configured to rotate around the axis to transfer torque from the measuring pin (140) to the main hole plate (180).
  13. 13. Impact damper assembly comprising: a damper cylinder (110) including a primary chamber (130); a damper piston (120), the damper cylinder (110) configured to receive the damper piston (120); an orifice support tube (150) positioned within that primary chamber (130) of the damper cylinder (110); a main orifice assembly (160) disposed within the orifice support tube (150), the main orifice assembly (160) including a main orifice plate (180); a measuring pin (140) positioned within that primary chamber (130), the measuring pin (140) defining an axis, said measuring pin (140) configured to translate with the damper piston (120), the measuring pin (140) configured to rotate around the axis and make a transition of said impact damper assembly from a first damping actor configuration (2002, 2102) to a second damping actor configuration (2004, 2104); characterized by the fact that it further comprises a flow restrictor (162, 164) coupled to the main orifice plate (180), the flow restrictor (162, 164) being configured to contact the measuring pin (140) in the first damping actor configuration (2002, 2102), the flow restrictor (162, 164) being further configured to be separated from the measuring pin (140) in that second damping actor configuration (2004, 2104).
  14. 14. Assembly according to claim 13, characterized in that the measuring pin (140) includes an elongated member (805), the elongated member (805) including a quadrilateral cross-section having a first side (802), a second side (804), a third side (806), and a fourth side (808), wherein the first side (802) is opposite the third side (806) and the second side (804) is opposite the fourth side (808).
  15. 15. Assembly according to claim 14, characterized in that the measuring pin (140) further comprises a first groove (810) disposed on the first side (802), a second groove (820) disposed on the second side (804), a third groove disposed on the third side (806); and a fourth groove disposed on the fourth side (808).
  16. 16. Assembly according to claim 13, characterized in that it further comprises a damping actor selector (170) configured to rotate the measuring pin (140) around the axis.
  17. 17. Assembly according to claim 13, characterized in that the first damping actor configuration (2002, 2102) includes a first damping curve, wherein the second damping actor configuration (2004, 2104) includes a second damping curve, and wherein the first damping curve is different from the second damping curve.

Description

FIELD OF THE INVENTION [0001] This disclosure relates generally to a multi-actor damping system and, more particularly, to a multi-actor damping system for use in a landing gear system. FUNDAMENTALS OF THE INVENTION [0002] Impact absorption devices are used in a wide variety of vehicle suspension systems to control the movement of the vehicle and its tires relative to the ground and to reduce the transmission of transient forces from the ground to the vehicle. Impact absorbing dampers are a common component in most aircraft landing gear assemblies. Impact dampers control the movement of the landing gear and absorb and dampen loads imposed on the landing gear during landing, taxiing, braking, and takeoff. [0003] A shock absorber typically performs these functions by compressing a fluid within a sealed chamber formed by hollow telescopic cylinders. The fluid usually includes either a gas or a liquid, such as hydraulic fluid or oil. One type of shock absorber typically uses an "air-over-oil" arrangement where a volume of confined gas is compressed as the shock absorber is axially compressed, and a volume of oil is metered through an orifice. The gas acts as an energy storage device, similar to a spring, so that after a compression force ends, the shock absorber returns to its original length. Shock absorbers also dissipate energy through the passage of oil through the orifice so that, as the shock absorber is compressed or extended, its rate of movement is limited by the damping action from the interaction of the orifice and the oil. SUMMARY OF THE INVENTION [0004] A measuring pin apparatus is disclosed in this document. The measuring pin apparatus may comprise an elongated member extending from a first end to a second end, the elongated member defining an axis, including a first side, a second side, a third side and a fourth side, the first side disposed opposite the third side and the second side disposed opposite the fourth side; a first groove profile disposed on the first side, the first groove profile comprising a first groove; and a second groove profile disposed on the second side, the second groove profile comprising a second groove. [0005] In several embodiments, the first channel profile is different from the second channel profile. The first channel profile may extend a first length along the elongated member, wherein the second channel profile extends a second length along the elongated member, wherein the first length is greater than the second length. The first groove and the second groove may be V-grooves. The first channel profile may be disposed on the third side and the second channel profile disposed on the fourth side. A cross-section of the elongated member may be substantially trapezoidal. A cross-section of the elongated member may be substantially square. [0006] A multi-actor damping system is disclosed in this document. The multi-actor damping system may comprise: a main orifice plate and a measuring pin configured to transfer torque from the measuring pin to the main orifice plate, the measuring pin configured to transition the multi-actor damping system from a first damping actor configuration including a first damping curve to a second damping actor configuration including a second damping curve, the first damping curve being different from the second damping curve. [0007] In various embodiments, the measuring pin comprises an elongated body extending from a first end to a second end, the elongated body including a first side, a second side, a third side, and a fourth side, wherein the first side is disposed opposite the third side and wherein the second side is disposed opposite the fourth side. The multi-actor damping system of claim 9 has a first side comprising a first V-groove and a second side comprising a second V-groove. The first V-groove may extend a first length of the measuring pin. The second V-groove may extend a second length of the measuring pin. The first length may be greater than the second length. The main orifice plate may comprise an opening, wherein the opening may be complementary to a cross-sectional shape of the measuring pin. The measuring pin may be disposed through the opening. The multi-actor damping system may further comprise a damping actor selector configured to rotate the measuring pin and the main orifice plate. [0008] An impact damper assembly is disclosed in this document. The impact damper assembly may comprise: a damper cylinder including a primary chamber; a damping piston, the damping cylinder configured to receive the damping piston; an orifice support tube positioned within the primary chamber of the damping cylinder; a main orifice assembly disposed within the orifice support tube, the main orifice assembly including a main orifice plate; and a measuring pin positioned within the primary chamber, the measuring pin defining an axis, the measuring pin configured to make translation with the damping piston, the measuring pin configured to r