Abstract:
A torque transmission device connects two rotary shafts having shaft ends opposing each other, such that torque is transmitted through a torque transmission mechanism provided to a shaft end surface of each of the two rotary shafts. A first rotary shaft of the two rotary shafts has a double-supported structure where both end portions of the first rotary shaft are supported by bearings, respectively. A second rotary shaft of the two rotary shafts has a cantilever structure where only one end portion of the second rotary shaft opposite to the torque transmission mechanism is supported by a bearing, and the second rotary shaft is spaced from one bearing of the bearings supporting the first rotary shaft, the one bearing being provided at a side of the torque transmission mechanism.
Abstract:
A gear pump device of this disclosure includes: a gear pump; a casing; and a seal mechanism, wherein the seal mechanism includes: an annular rubber member; an outer member; and an inner member, which has an outer peripheral wall on which the annular rubber member is mounted, the inner member fitted into an inner side of the outer member and contacting on a inner wall face of the outer shell, wherein the outer peripheral wall of the inner member is provided with a collar portion that generates a propulsive force towards the inner wall face of the inner member by a contact pressure of the annular rubber members based on a discharge pressure of the gear pump, and the collar portion forms a pressure receiving face to increase the propulsive force as the contact pressure of the annular rubber members increases according to an increase of the discharge pressure.
Abstract:
A vehicle brake controller is capable of executing limit control for limiting increase in braking force applied to front wheels by using a deceleration of a vehicle. The vehicle brake controller is configured to start the limit control when the deceleration of the vehicle becomes greater than or equal to a start determination value before a start determination time period elapses after a deceleration starting point in time, at which the deceleration of the vehicle is started by application of braking force at least to the front wheels. The vehicle brake controller is configured to end the limit control if the deceleration of the vehicle is less than an end determination value, which is greater than the start determination value, at a point in time when an end determination time period, which is longer than the start determination time period, has elapsed from the deceleration starting point in time.
Abstract:
Vehicle brake device comprises a master cylinder including a master chamber connected to a wheel cylinder, a drive pressure chamber in which a drive pressure is generated for driving a master piston and a fluid pressure chamber in which a fluid pressure is generated in response to a stroke position of the master piston and an operating characteristics setting device for setting operating characteristics of an electromagnetic valve. The operating characteristics include a relationship of the pressure differential in the fluid conduit between the master cylinder side and the wheel cylinder side with respect to the electromagnetic valve based on the supply amount of the electric power detected by the supplied electric power detecting device.
Abstract:
The rotating machine includes a rotating shaft, a case surrounding the rotating shaft, the case being provided with a fluid storing chamber and formed with a housing section. The rotating machine further includes a bearing disposed in the housing section and supporting the rotating shaft, and a ring-like seal member disposed between the fluid storing chamber and the bearing for suppressing the fluid from flowing through a clearance between the rotating shaft and the case. The case is formed with a drain hole for making communication between atmosphere and a space surrounded by the seal member and the bearing within the case and discharging the fluid leaking from the fluid storing chamber and passing the seal member to enter the space, and an atmosphere introducing hole for introducing outside air into the space to keep the space at atmospheric pressure.
Abstract:
A vacuum brake booster includes a movable wall forming a vacuum chamber and a variable pressure chamber in a housing and a valve body connected to the movable wall. A valve mechanism having a vacuum valve for establishing or interrupting the communication between both chambers corresponding to the movement of a plunger and having an air valve for establishing or interrupting the communication between the variable pressure chamber and atmosphere are disposed in an axial hole of the valve body. Atmosphere after the air valve passed flows into the variable pressure chamber through an axial passage and a radial passage formed in the valve body. The axial passage is constituted by a cylindrical inner passage formed at the outer circumference of the plunger by an arc-like flow regulating wall and an arc-like inner circumferential wall portion and an outer passage formed at the outer circumference of the inner passage.
Abstract:
A gear pump having an inner rotor and an outer rotor is covered by a cylindrical outer casing and side casings. The cylindrical outer casing has two outer circumferential edges which are welded over the entire circumference thereof to the outer edges of the side casings, respectively. The outer casing has two angularly spaced recesses in its inner periphery for receiving slide seals therein. Welding is started at a welding start point which is 90 degrees spaced from the middle point between two recesses. During welding, welding energies are applied to the welding start point and the middle point between two recesses. Those energies tend to deform the casing into oval shapes that are 90 degrees out of phase from each other. Thus, these energies cancel each other, thereby preventing the casing from being deformed.
Abstract:
A brake squeal control device is proposed in which specific control for reducing brake squeals can be carried out to meet the will of a driver, and squeal control conditions for starting squeal reduction can be set individually to meet the requirements of drivers. Signals from wheel speed sensors, which indicate travel state, a hydraulic pressure sensor in a hydraulic circuit, which indicates the braking state, interior and exterior temperature sensors, which indicate the temperature state, and a manual switch operated by the will of a driver are sent to a control circuit. Conditions when squeals which the driver wishes to reduce or eliminate are produced, are stored in the control circuit, and when certain data are prepared, thereafter, by detecting the conditions at the time of generation, automatic squeal control is carried out.
Abstract:
A brake squeal control device is proposed which carries out squeal control by specifying travel state and temperature conditions in which brake noise tends to be produced. The brake squeal control device is adapted to feed detection signals from a sensor group that indicates the travel state of the vehicle from a stepping force sensor or wheel speed sensors, and a sensor group that indicates the temperature state from an engine cooling water temperature sensor, a car compartment temperature sensor, a caliper temperature sensor or an outer air temperature sensor to a control circuit. If conditions corresponding to an nullin-the-coldnull and nullfirst-in-the-morningnull states are detected by computing in the control circuit, a solenoid valve is turned on and off to suppress brake squeals.
Abstract:
This automatic clutch control device selects a normal mode when a road friction coefficient is not less than 0.3 at a disconnecting operation starting point (time t1), selects a little low-speed mode when it is not less than 0.1 but less than 0.3 and selects a low-speed mode when it is less than 0.1. Further, when a vehicle stabilizing control such as a traction control or the like is not executed at the time t1, this device selects the normal mode, while when a vehicle stabilizing control is executed at the time t1, it selects the low-speed mode. Moreover, this device selects a high-speed mode when the vehicle is in a sports running mode at the time t1, while selects the normal mode when the vehicle is not in the sports running mode. A connecting operation of a clutch is performed with a speed corresponding to the selected mode in an automatic clutch connecting/disconnecting control by a clutch connecting/disconnecting actuator upon executing a gear-shift control.