公开(公告)号：US20250043842A1

公开(公告)日：2025-02-06

申请号：US18919374

申请日：2024-10-17

Applicant: NISSHINBO BRAKE, INC.

Inventor： TAKAO TANAKA ,  TOMOMI IWAI ,  MITSUAKI YAGUCHI

IPC: F16D69/02

Abstract: This invention relates to a friction material used for a disc brake pad, which is manufactured by forming a non-asbestos-organic (NAO) friction material composition that contains a binder, a fiber base material, a friction modifier, a lubricant, a pH adjuster, and a filler, which satisfies requirements for the required braking effectiveness, crack resistance, and fade resistance. The friction modifier contains 5-30 mass % of a magnesium potassium titanate, which has the alkali elution rate of 0.1-2.5 mass %, relative to the total amount of the friction material composition. Preferably, the titanate that may be contained in the friction modifier is a magnesium potassium titanate and 5-25 mass % of a monoclinic crystal zirconium oxide relative to the total amount of the friction material composition, and the fiber base contains 1-5 mass % of a fibrillated organic fiber relative to the total amount of the friction material composition.

公开(公告)号：US20250043841A1

公开(公告)日：2025-02-06

申请号：US18717126

申请日：2022-12-01

Applicant: OTSUKA CHEMICAL CO., LTD.

Inventor： Yasuhito Ito

IPC: F16D69/02 ,  C01G23/00

Abstract: Provided is a friction modifier capable of increasing, when used in a friction material, the coefficient of friction of the friction material in a high-load region. A friction modifier is made of a titanate, is a salt of at least one element selected from the group consisting of alkali metals and alkaline earth metals, and has a decomposition rate of not less than 30% by mass and not more than 100% by mass when heated at 800° C. for an hour in a nitrogen atmosphere.

公开(公告)号：US20250035175A1

公开(公告)日：2025-01-30

申请号：US18782968

申请日：2024-07-24

Applicant: Volkswagen Aktiengesellschaft

Inventor： Stefan RICHTER ,  Fabian BEHM ,  Markus HARKE ,  Klaus Stefan KLIMEK

IPC: F16D65/12 ,  F16D65/02 ,  F16D69/02

Abstract: A brake element for a motor vehicle, having a base body that is planar at least in areas, to the planar sides of which at least two build-up layers are applied in each case, at least in areas. The build-up layers form a surface which, in the mounted state of the brake element on the motor vehicle, is used as a friction surface for a brake pad. A first build-up layer is present that adjoins the base body, and a second build-up layer is applied to the first build-up layer. The second build-up layer is made of a composite of an iron alloy matrix with intercalated tungsten carbide particles or with intercalated titanium carbide particles. At least the first build-up layer is an iron alloy that is alloyed at least with molybdenum in a range of 3 to 20 weight percent.

公开(公告)号：US12209629B2

公开(公告)日：2025-01-28

申请号：US17637367

申请日：2020-08-19

Applicant: ADVICS CO., LTD.

Inventor： Shusuke Suzuki ,  Naoki Odani ,  Masaaki Kobayashi

IPC: F16D69/02 ,  C04B111/00 ,  C08K3/16 ,  C08K3/22

Abstract: A friction member according to an embodiment is a friction material having a copper content of less than 5 wt %, the friction material including a titanic acid salt having a content of 1 wt % or more and 8 wt % or less, a cryolite powder having a content of 0.5 wt % or more and 5 wt % or less, and an iron oxide powder having a median diameter of 15 to 30 μm (D50) and a content of 1 wt % or more and 10 wt % or less.

公开(公告)号：US20250003462A1

公开(公告)日：2025-01-02

申请号：US18342902

申请日：2023-06-28

Applicant: GM Global Technology Operations LLC

Inventor： Benjamin Everest Slattery

IPC: F16D65/12 ,  F16D65/10 ,  F16D69/02

Abstract: A brake rotor, a brake system including a brake rotor, and a method of boronizing a brake rotor, wherein the brake rotor includes a rotor body including a braking surface. The rotor body includes an iron alloy and the braking surface includes a layer of Fe2B phases in the braking surface. The brake system includes the brake rotor and a brake pad engageable with the braking surface. The method includes boronizing the braking surface and forming a Fe2B phases on the braking surface and cooling the rotor body to ambient temperature.

公开(公告)号：US12158189B2

公开(公告)日：2024-12-03

申请号：US17497932

申请日：2021-10-09

Applicant: NISSHINBO BRAKE, INC.

Inventor： Yuka Osawa

IPC: F16D69/02

Abstract: To provide the friction material for the disc brake pad manufactured by forming the NAO friction material composition that does not contain the copper component and does not generate the creeping groan and the seizure to mating surface due to corrosion but possessing sufficient braking effectiveness and wear resistance. The friction material composition relative to the entire amount of the friction material composition, has 2-10 weight % of the calcium silicate as one of the inorganic friction modifiers, 15-30 weight % of the non-whisker-like titanate as one of the inorganic friction modifiers, 1-9 weight % of the metal sulfide as one of the lubricants and 3-10 weight % of the graphite as one of the lubricants.

公开(公告)号：US12146539B2

公开(公告)日：2024-11-19

申请号：US18469422

申请日：2023-09-18

Applicant: GOODRICH CORPORATION

Inventor： Christopher T. Kirkpatrick ,  Gary C. Riebe

IPC: F16D65/12 ,  B29C70/54 ,  B29C70/68 ,  C04B35/628 ,  C04B35/83 ,  C23C16/04 ,  F16D69/02 ,  B29K307/04 ,  B29K707/04 ,  B29K709/02 ,  B29L31/16 ,  F16D65/02

Abstract: A friction disk may comprise a first wear surface formed from a carbon fiber-carbon matrix composite material. A wear plug may be located in an opening defined by the carbon fiber-carbon matrix composite material. The wear plug may extend axially from the wear surface. The wear plug may comprise a rod or a particulate.

公开(公告)号：US12024476B2

公开(公告)日：2024-07-02

申请号：US16797610

申请日：2020-02-21

Applicant: Honeywell International Inc.

Inventor： Bahram Jadidian ,  Richard George Rateick, Jr. ,  Mehrad Mehr ,  Donald Olson

IPC: B32B9/00 ,  C04B35/83 ,  C04B41/00 ,  C04B41/45 ,  C04B41/50 ,  C04B41/52 ,  C04B41/89 ,  F16D65/12 ,  F16D69/02 ,  B82Y30/00

CPC classification number: C04B41/5024 ,  C04B35/83 ,  C04B41/009 ,  C04B41/4515 ,  C04B41/4539 ,  C04B41/5059 ,  C04B41/5061 ,  C04B41/52 ,  C04B41/89 ,  F16D65/125 ,  F16D69/023 ,  B82Y30/00 ,  C04B2235/66 ,  C04B2235/9607 ,  C04B2235/9684 ,  Y10T428/30

Abstract: An article including carbon-carbon composite substrate may be treated with an antioxidant coating prior to use in an oxidizing environment. The antioxidant coating may be configured to reduce oxidation at an external surface of the C—C composition and reduce ingress of oxidants into pores or other open passages defined by the C—C composite substrate to avoid internal oxidation. An example article includes a C—C composite substrate, a bond coat, and an antioxidant coating. The C—C composite substrate defines a friction surface and a non-friction surface. The bond coat is disposed on the non-friction surface. The antioxidant coating may be disposed on at least a portion of the bond coat. The antioxidant coating may include ytterbium disilicate and a sintering aid.

公开(公告)号：US20240191116A1

公开(公告)日：2024-06-13

申请号：US18279120

申请日：2022-02-17

Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.

Inventor： Kenta KIMURA ,  Motoyuki MIYAJI ,  Hiroshi YAMAMOTO ,  Kentaro OWA ,  Yuta WATANABE

IPC: C09K3/14 ,  C09K105/00 ,  F16D69/02

CPC classification number: C09K3/149 ,  F16D69/026 ,  C09K2105/00

Abstract: A friction material including: a friction modifier: a binder: and a fiber base material, in which an alumina fiber is contained as the fiber base material, and a content of the alumina fiber is 0.1 mass % to 1.0 mass. The alumina fiber preferably includes Al2O3 and SiO2, and a chemical composition ratio of Al2O3 and SiO2 is preferably Al2O3:SiO2=70:30 to 80:20.

公开(公告)号：US11982331B2

公开(公告)日：2024-05-14

申请号：US17041194

申请日：2019-03-18

Applicant: Schaeffler Technologies AG & Co. KG

Inventor： Philippe Kremper ,  Alain Rusch ,  Martin Häßler

IPC: F16F15/12 ,  F16F15/123 ,  F16F15/129 ,  F16D3/12 ,  F16D3/14 ,  F16D69/02 ,  F16D121/14

CPC classification number: F16F15/1204 ,  F16F15/12353 ,  F16F15/1292 ,  F16D3/12 ,  F16D3/14 ,  F16D69/023 ,  F16D69/026 ,  F16D2121/14 ,  F16D2200/0052 ,  F16D2200/0056 ,  F16F2222/04 ,  F16F2224/0241 ,  F16F2224/025 ,  F16F2232/02 ,  F16F2234/06

Abstract: A torsional vibration damper includes an input part for introducing a torque, a first cam mechanism, an intermediate element, a compression spring engaged with the intermediate element, a second cam mechanism for discharging a vibration-damped torque, and a frictional element for friction damping. The intermediate element is coupled to the input part via the first cam mechanism such that a relative rotation between the input part and the intermediate element is converted into a linear movement of the intermediate element radially inward or radially outward. The output part is coupled to the intermediate element via the second cam mechanism such that a linear movement of the intermediate element is converted into a relative rotation between the output part and the intermediate element. The frictional element is pressed against the intermediate element or the output part. The frictional element may be movement-coupled to the intermediate element or the output part.