GB2613348A - Motor gasket - Google Patents

Motor gasket Download PDF

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Publication number
GB2613348A
GB2613348A GB2117249.9A GB202117249A GB2613348A GB 2613348 A GB2613348 A GB 2613348A GB 202117249 A GB202117249 A GB 202117249A GB 2613348 A GB2613348 A GB 2613348A
Authority
GB
United Kingdom
Prior art keywords
motor
gasket
housing
motor gasket
bldg
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB2117249.9A
Other versions
GB2613348B (en
GB202117249D0 (en
Inventor
Scutaru Mihai
Petrisor Alexandra
Moraru Emilian
Popa Alexandru
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive Technologies GmbH
Original Assignee
Continental Automotive Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive Technologies GmbH filed Critical Continental Automotive Technologies GmbH
Priority to GB2117249.9A priority Critical patent/GB2613348B/en
Publication of GB202117249D0 publication Critical patent/GB202117249D0/en
Publication of GB2613348A publication Critical patent/GB2613348A/en
Application granted granted Critical
Publication of GB2613348B publication Critical patent/GB2613348B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
    • B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
    • B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
    • B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/745—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
    • B60T8/4031—Pump units characterised by their construction or mounting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
    • F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

A motor gasket to be mounted inside the housing of a motor for sealing a motor and a valve support (e.g. of a hydraulic electronic control unit HECU of a brake-by-wire system), and a braking system including the gasket. The gasket includes a first end 4.1 and a second end 4.2. The first end 4.1 has a first cylindrical external surface CES including a plurality of circular sealing ribs CSR. The second end 4.2 has a central hole, an outer planar surface OPS including a plurality of concentric circular sealing ribs CCSR around the central hole. The second end also includes four outer protuberances 4.4 radially placed on a cylindrical outer surface and being configured to be accommodated in four pockets of the motor housing (P; fig. 7a), and six equidistance identical outer protuberances 4.5 radially place on the cylindrical outer surface for centring the gasket in the housing.

Description

MOTOR GASKET
DESCRIPTION
The invention relates to electronic braking control systems. In particular, it refers to a motor gasket that ensures a tight connection between some components of a braking system, namely between BLDC motor and valve support.
In order to ensure a high efficiency brake-by-wire system, the concept of Hydraulic Electronic Control Unit, thereafter HECU, has been developed and improved as to reduce the time response and to shorten the braking distance. Such brake pressure control units are known from W02020083702A, US9776607B or from US9827960B, for example. A BLDG motor generates the power needed for actuating a ball screw drive, whose purpose is to push a piston assembly that create pressure and deliver it to the hydraulic circuit of the braking system.
In the current arrangements of the HECU, the ball screw drive has a spindle coupled in an outer sleeve by a ball screw drive interface which is fixed inside the outer sleeve; the piston assembly is fixed onto a nut by a profile pipe. The rotation of the nut is cancelled by a torque support which is in contact with the profile pipe and is mounted on the sealing. The relative position of the piston assembly in the piston housing is determined by a rotational transducer which is mounted on a rotor tube. The piston housing is fixed onto a valve support by caulking. When the nut advances due to the hydraulic pressure created in the piston housing, an axial force acts on the motor housing.
In order to seal the system it is used a sealing that also withstands the applications temperatures and pressures.
Other functions of the sealing are: support of iMops PCB, support of torque out of BSD, centring the motor in HCU, guidance for motor connector.
The existing sealing used in MKC 2 braking systems has complex shape and face problems related to salt penetration that generates corrosion, affecting the tightness of the system, and also bringing to a deterioration of the face of the valve support in contact with the sealing.
The problem solved by the invention is reducing the possibility of salt penetration at the contact surface of the sealing with the valve support by changing the configuration 1.
of the sealing, so as to be placed inside the housing of the BLDG motor, the new sealing, further called motor gasket, having a simplified shape.
Motor gasket 4 for sealing a BLDG motor 1 and a valve support 5, the BLDG motor 1 having a housing H and a ball screw drive BSD 2. The housing H comprises an inner surface HIS facing the BLDC motor 1, and an end H1 facing the valve support 5, the inner surface HIS having an inner surface diameter DHIS.
The ball screw drive BSD 2 is accommodated partially within said BLDG motor 1 and partially within said valve support 5.
The motor gasket 4 is configured to be mounted inside the housing H, the motor gasket 4 being substantially hollow shaped, and configured for accommodating the ball screw drive BSD 2.
The motor gasket 4 comprises a first end 4.1 and a second end 4.2.
The first end 4.1 is configured to seal the motor gasket 4 on the inner surface HIS of the housing H by means a first sealing surface SS1 of a first cylindrical external surface IS CES1 of the first end 4.1.
The second end 4.2 comprises a central hole 4.3 configured for accommodating the ball screw drive BSD 2, the central hole 4.3 having a smaller diameter than the diameter of the inner surface of said first end 4.1 The second end 4.2 is configured to seal the motor gasket 4 on the valve support 5 20 by means of a second sealing surface SS2 of an outer plane surface OPS.
The motor gasket 4 comprises four outer protuberances 4.4 radially placed on a second cylindrical external surface CES2 of the second end 4.2 of the motor gasket 4, said four outer protuberances 4.4 being configured to be accommodated within four pockets P of the housing H. Said four outer protuberances 4.4 are configured to prevent the axial movement and rotation of the gasket 4 in respect to the housing H. The motor gasket 4 comprises six equidistant identical outer protuberances 4.5 radially placed on the second cylindrical external surface CES2 of the second end 4.2 of the motor gasket 4, said six equidistant identical outer protuberances 4.5 being configured for centring the motor gasket 4 into the housing H. The motor gasket 4 comprises a plurality of circular sealing ribs CSR placed on the first sealing surface SS1, on the first circular external surface CES1, said plurality of circular sealing ribs CSR being configured for sealing the motor gasket 4 with the inner surface HIS of the housing H. The motor gasket 4 comprises a plurality of concentric circular sealing ribs CCSR placed concentrically around the central hole 4.3, on the second sealing surface SS2, on the outer plane surface OPS of the second end 4.2 of the motor gasket 4, said plurality of concentric circular sealing ribs CCSR being configured for sealing the motor gasket 4 with the valve support 5.
The motor gasket 4 is configured to ensure the sealed connection between the BLDC motor 1 and the valve support 5 without the axial movement and rotation of the gasket 4 in respect to the housing H of the BLDG motor 1 and it is centred into the housing H of the BLDG motor 1.
In another aspect of the invention it refers to a braking system using the new motor 10 gasket 4, the BLDG motor 1, and the valve support 5.
The motor gasket according to the invention has the following advantages: increases the life cycle of the valve support, provides simplified moulding process and reduced size and complexity, removes the bushings and decreases the length of the screw and smaller axial dimension of the LAC which will lead to a smaller packaging. Is
Fig.1 represents a schematic section of the MKC2 HCU braking system from the state of the art.
Fig. 2 illustrates a schematic view of the MKC2 HCU braking system from the state of the art, with a partial section.
Fig. 3 illustrates the configuration of the sealing from the state of the art.
Fig. 4 illustrates the configuration of the sealing according to the invention Fig. 5 illustrates the sealing according to the invention mounted inside the adapted motor housing, showing the portions of tightness with the motor housing and with the valve support and the position of the centring features.
Fig. 6 represents a schematic section of the MKC2 HCU braking system including the adapted motor housing and the sealing according to the invention, showing the points of contact.
Fig. 7a shows the adapted motor housing.
Fig. 7b shows the motor gasket according to the invention.
The braking systems from the prior art, as seen in Fig. 1, comprise a BLDG motor 1 that produces the necessary power for actuating a ball screw drive BSD 2 that is connected with said BLDG motor 1. The ball screw drive BSD 2 converts the rotation movement from the BLDG motor 1 into a linear movement to a piston. The ball screw drive BSD 2 pushes the piston, generating pressure inside a piston housing, pressure that is delivered to a hydraulic circuit and controlled by means of a plurality of valves held in a valve support 5. The braking system needs to be sealed at the interface of the BLDC motor 1 with the valve support 5, to this end a motor gasket 4 being provided, so as to ensure a tight connection between said two components. The motor gasket is an over moulded component with a complex shape because it needs to withstand the resulting loads and torque from the system, to ensure that the HECU system is sealed, and also to carry out other functions as previously described. It contains basically two materials, one being the plastic, so as to support and to resist to all forces and shocks that appear in the system, the other one being silicon, on the sealing surfaces, so as to ensure an effective sealing between the respective component parts.
The motor gasket from the state of the art is substantially rectangular and plane, mounted by means of four screws accommodated in four holes placed on the corners of a rectangular flange, on the circumference of a housing of the BLDG motor, said four screws further accommodated in four holes on the corners of the gasket, and said four screws being fixed in the valve support (as seen in Fig. 2).
The existing motor gasket comprises a first sealing surface comprising a number of parallel concentric ribs, as seen in Fig. 3, ensuring a tight connection between the motor gasket and the housing of the BLDC motor.
The existing motor gasket also comprises a second sealing surface, parallel and opposed to the first sealing surface, said second sealing surface comprising a number of parallel concentric ribs, ensuring a tight connection with the valve support.
The parallel ribs of the first sealing surface and of the second sealing surface have similar shapes, substantially rectangular, with recessed rounded corners around each screw hole. The marginal position of both sealing surfaces of the motor gasket from the state of the art allows the penetration of the salts in the parallel ribs, thus deteriorating the ribs of the two sealing surfaces, the housing and the valve support.
The invention proposes an alternative simplified motor gasket 4, as seen in Figs. 47, mounted inside an adapted housing H of the BLDC motor 1, at the end of the housing H facing the valve support 5. The new motor gasket has the same functions as the motor gasket for the state of the art. For this invention a regular MKC 2 Motor with 085 mm diameter was used.
The adapted housing H comprises an inner surface HIS having a diameter DHIS, an extended end H1 facing the valve support 5, and four pockets P radially placed on the inner surface HIS, on the extended end H1 facing the valve support 5.
The motor gasket 4 according to the invention is substantially tubular, accommodating the ball screw drive BSD 2.
The new motor gasket 4 comprises a first end 4.1 facing the BLDG motor 1, a cylindrical external surface CES at the first end 4.1, parallel to the inner surface HIS of the housing H of the BLDG motor 1 and a second end 4.2 facing the valve support 5.
The cylindrical external surface CES of the motor gasket 4 has a diameter DCES, and the inner surface of the housing HIS has a diameter DHIS, where d is the difference between the diameter Dnis and the diameter DcEs. it being calculated depending on the pressure and existing forces from the assembly, that further depend on the characteristics of the braking system.
The first end 4.1 is configured to seal the motor gasket 4 with the housing H of the BLDC motor 1, and the second end is configured to seal the motor gasket 4 with the valve support 5. The sealing portions are made of LSR (liquid silicone rubber) -LR 3070/40.
The first end 4.1 seals the motor gasket 4 with the BLDG motor 1 on a first cylindrical external surface CES1 of the circular external surface CES, on the internal surface HIS of the housing H of the BLDC motor 1.
The second end 4.2 comprises a central hole 4.3 for accommodating the ball screw 20 drive BSD 2. The second end 4.2 also comprises an outer plane surface OPS facing the valve support 5, said outer plane surface OPS being configured for sealing the motor gasket 4 with the valve support 5.
The valve support 5 is in this case connected directly with the housing H of the BLDC motor 1 by means of four screws mounted on the extended end H1 of the 25 adapted housing H. The new motor gasket has two sealing surfaces, namely a first sealing surface SS1 facing the BLDC motor 1 and a second sealing surface SS2 facing the valve support 5, each comprising a plurality of parallel circular ribs.
The two sealing surfaces are no longer marginal, as in the state of art, so that the penetration of salts and deterioration of the parts of the braking system is substantially reduced.
The first sealing surface 551 is cylindrical, it being placed on the first cylindrical external surface CES1 of the first end 4.1 of the motor gasket 4. The first sealing surface 551 seals the motor gasket 4 with the motor housing H, on the inner surface HIS of the housing H of the BLDG motor 1 by means of a plurality of circular sealing ribs CSR placed on the first sealing surface 1SS. The number of circular sealing ribs CSR can be between 2 and 5, the most preferred number of circular sealing ribs CSR being 3, this number also depending by their height, hcsR.
The second sealing surface SS2 seals the motor gasket 4 with the valve support 5 by means of a plurality of concentric circular sealing ribs CCSR, said second sealing surface SS2 being positioned similar with the second sealing surface of the motor gasket from the state of the art. The number of concentric circular sealing ribs CCSR can be between 2 and 5, the most preferred number of being 3, this number also depending by their height, hccsR.
The plurality of circular sealing ribs CSR and the plurality of concentric circular sealing ribs CCSR are circular, having thus a substantially simpler shape than the ribs from the prior art, as above described.
The motor gasket 4 also comprises four outer protuberances 4.4 radially placed on the outer plane surface OPS of the second end 4.2, that are accommodated within said four pockets P of the adapted motor housing H. The four outer protuberances 4.4 are further configured to prevent the axial movement and rotation of the gasket 4 in respect to the housing H of the BLDC motor 1.
The motor gasket 4 also comprises six equidistant identical outer protuberances 4.5 20 radially placed on said outer plane surface OPS of the second end 4.2 of the motor gasket 4.
Said six equidistant outer protuberances 4.5 are configured for centring the motor gasket 4 into the housing H of the BLDC motor 1. The six equidistant identical outer protuberances 4.5 which have a height and a length established by technical designing methods, known in the art, where the height is less than the half of the difference d between the diameter DHIS of the inner surface HIS of the housing H of the BLDG motor 1 and the diameter DcEs of the circular external surface CES of the second end 4.2 of the motor gasket 4.
The height hcsR of the circular sealing ribs CSR is greater than half of the difference 30 d between the diameter DHIS and the diameter DCES, so that the peaks of the ribs are partially flattened when the motor gasket 4 is in working position, namely mounted in the braking system, so as to ensure an effective sealing.
In one embodiment of the invention, the all circular sealing ribs have the same height, hcsR being for example 0.4mm. In another embodiment of the invention, the first rib, in the vicinity of the BLDC motor, has different height, it being shorter than the next ribs, all next ribs having the same height.
The motor gasket 4 also comprises a plurality of concentric circular sealing ribs CCSR, concentrically placed around the central hole 4.3, on the outer plane surface OPS of the second end 4.2 of the motor gasket 4. Said plurality of concentric circular sealing ribs CCSR are configured to seal motor gasket 4 with the valve support 5.
The height hccsR of the concentric circular sealing ribs CCSR is 0.4mm so that the peaks of the ribs are partially flattened when the motor gasket 4 is in working position, namely mounted in the braking system, so as to ensure an effective sealing with the valve support 5.
The particular shapes of the ribs profiles are chosen depending on the technical requirements of the braking system.
The present invention also refers to a braking system comprising the new motor gasket 4, the BLDG motor 1, and the valve support 5.
REFERENCE SIGNS
1 BLDC motor H Housing of BLDC motor HIS Inner surface of the housing 2 Ball screw drive BSD 3 Piston 4 Motor Gasket 4.1 First end of the motor gasket 4 4.2 Second end of the motor gasket 4 4.3 Central hole 4.4 Outer protuberances 4.5 Equidistant identical outer protuberances CES Cylindrical external surface OPS Outer plane surface CSR Circular sealing ribs CCSR Concentric circular sealing ribs Valve support

Claims (8)

  1. CLAIMS1. Motor gasket (4) for sealing a BLDC motor (1) and a valve support (5), said BLDG motor (1) having: a housing (H); said housing (H) comprising an inner surface (HIS) facing the BLDC motor (1), and an end (H1) facing the valve support (5); said inner surface (HIS) having an inner surface diameter (Dnis); a ball screw drive BSD (2), accommodated partially within said BLDG motor (1) and partially within said valve support (5) characterized in that: - said motor gasket (4) is configured to be mounted inside the housing (H) of the BLDG motor (1); - said motor gasket (4) is substantially hollow shaped, and configured for accommodating the ball screw drive BSD (2); - said motor gasket (4) comprising a first end (4.1) and a second end (4.2), - said first end (4.1) being configured to seal the motor gasket (4) on the inner surface (HIS) of the housing (H) of the BLDC motor (1) by means a first sealing surface (SS1) of a first cylindrical external surface (CES1) of the first end (4.1), - said second end (4.2) comprising a central hole (4.3) configured for accommodating the ball screw drive BSD (2), the central hole (4.3) having a smaller diameter than the diameter of the inner surface of said first end (4.1), -said second end (4.2) being configured to seal the motor gasket (4) on the valve support (5) by means of a second sealing surface (SS2) of an outer plane surface (OPS); -said motor gasket (4) comprising: - four outer protuberances (4.4) radially placed on a second cylindrical external surface (CES2) of the second end (4.2) of the motor gasket (4), * said four outer protuberances (4.4) being configured to be accommodated within four pockets (P) of the housing (H); 9 * said four outer protuberances (4.4) being further configured to prevent the axial movement and rotation of the gasket (4) in respect to the housing (H) of the BLDG motor (1); - six equidistant identical outer protuberances (4.5) radially placed on the second cylindrical external surface (CES2) of the second end (4.2) of the motor gasket (4), * said six equidistant identical outer protuberances (4.5) being configured for centring the motor gasket (4) into the housing (H) of the BLDG motor (1), -a plurality of circular sealing ribs (CSR) placed on the first sealing surface (SS1), on the first circular external surface (CES1) of the motor gasket (4), * said plurality of circular sealing ribs (CSR) being configured for sealing the motor gasket (4) with the inner surface (HIS) of the housing (H) of the BLDG motor (1); -a plurality of concentric circular sealing ribs (CCSR) placed concentrically around the central hole (4.3), on the second sealing surface (SS2), on the outer plane surface (OPS) of the second end (4.2) of the motor gasket (4); * said plurality of concentric circular sealing ribs (CCSR) being configured for sealing motor gasket (4) with the valve support (5). 20 Wherein the motor gasket (4) is configured to ensure the sealed connection between the BLDG motor (1) and the valve support (5) without the axial movement and rotation of the gasket (4) in respect to the housing (H) of the BLDG motor (1) and it is centred into the housing (H) of the BLDG motor (1).
  2. 2. Motor gasket (4) according to any of the preceding claims characterized in that each circular sealing rib from the plurality of circular sealing ribs (CSR) have the same height (hcsR).
  3. 3. Motor gasket (4) according to any of the preceding claims characterized in that the first rib from the plurality of circular sealing ribs (CSR) is shorter than each of the next ribs from the plurality of circular sealing ribs (CSR), said first rib being placed toward to said first end (4.1).
  4. 4. Motor gasket (4) according to any of the preceding claims characterized in that each concentric circular sealing rib of the plurality of concentric circular sealing ribs (CCSR) have heights (hccsR).
  5. 5. Motor gasket (4) according to any of the preceding claims characterized in that said motor gasket (4) is made by an over moulded material, consisting from: a. LSR (liquid silicone rubber) -LR 3070/40 for the plurality of circular sealing ribs (CSR) and plurality of concentric circular sealing ribs (CCSR); b. plastic for the other portions of the motor gasket (4).
  6. 6. Motor gasket (4) according to any of the preceding claims characterized in that the number of circular sealing ribs (CSR) is a number between 2 and 5, preferable 3.
  7. 7. Motor gasket (4) according to any of preceding claims c ha r acte riz ed i n that the number of concentric circular sealing ribs (CCSR) is a number between 2 and 5, preferable 3.
  8. 8. Braking system comprising the motor gasket (4) according to any of preceding claims, the BLDG motor (1), and the valve support (5).
GB2117249.9A 2021-11-30 2021-11-30 Motor gasket Active GB2613348B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2117249.9A GB2613348B (en) 2021-11-30 2021-11-30 Motor gasket

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2117249.9A GB2613348B (en) 2021-11-30 2021-11-30 Motor gasket

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GB202117249D0 GB202117249D0 (en) 2022-01-12
GB2613348A true GB2613348A (en) 2023-06-07
GB2613348B GB2613348B (en) 2023-12-06

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531573A (en) * 1994-07-13 1996-07-02 Sumitomo Electric Industries, Ltd. Pump and motor interposed rubber sealing gasket having plural guide protrusions
US5650676A (en) * 1992-10-24 1997-07-22 Licentia Patent-Verwaltungs-Gmbh Electric motor with improved seal
GB2580043A (en) * 2018-12-20 2020-07-15 Continental Automotive Romania Srl A valve support with sealing means for hydraulic electronic control unit brake system and brake control system using said valve support

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650676A (en) * 1992-10-24 1997-07-22 Licentia Patent-Verwaltungs-Gmbh Electric motor with improved seal
US5531573A (en) * 1994-07-13 1996-07-02 Sumitomo Electric Industries, Ltd. Pump and motor interposed rubber sealing gasket having plural guide protrusions
GB2580043A (en) * 2018-12-20 2020-07-15 Continental Automotive Romania Srl A valve support with sealing means for hydraulic electronic control unit brake system and brake control system using said valve support

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Publication number Publication date
GB2613348B (en) 2023-12-06
GB202117249D0 (en) 2022-01-12

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