32results about How to "Suppress abnormal sounds" patented technology

The present invention provides scroll type fluid equipment which adopts a thrust plate installing structure, wherein, the thrust plate installing structure can reliably fix a thrust plate by absorbing a manufacturing tolerance and reduce the contact surface pressure of a fitting part of pins and the thrust plate. Four pieces of pins (31) are protruded from a thrust bearing part (1) of a front cover (6), four gap parts (41a-41d) are formed on the thrust plate (40) for fitting with the pins (31), the shapes of the four gap parts (41a-41d) are that the four gap parts extend along a radius direction of the thrust plate, and the shapes of the three gap parts (41a-41c) of the four gap parts are that the fitting gap of the gap parts and the pins (31) is minimal on the periphery of the thrust plate.

An elastic blade includes an edge layer and at least one backup layer laminated on the edge layer. The edge layer includes a contact edge to contact a contact object and an opposing face to oppose the contact object, and the backup layer is greater in elastic power than the edge layer.

The invention provides a hermetic compressor which can inhibit abnormal sounds, low noises and low vibration generated by vertical movement of a rotor without increasing the number of parts, and a refrigeration cycle apparatus comprising the hermetic compressor. One part of a main bearing (26) of a crankshaft (4) is received inside a counter-bore part (13) of a rotor (6) of an electric element (3) which is coaxially fixed with the crankshaft (4). The rotor (6) has a vent hole (14) that is axially disposed along an upper end of the rotor (6) and is communicated with the counter-bore part (13).

In the heat exchanger, there are provided: an inflow port (225a) for the refrigerant to flow in; a cooling outflow port (227a) for the refrigerant to flow out during the cooling operation; and a heating outflow port (227a) for the refrigerant to flow out during the heating operation (226a), the distance between the inflow port (225a) and the heating outflow port (226a) is arranged to be shorter than the distance between the inflow port (225a) and the cooling outflow port (227a).

The present invention more reliably suppresses output-side displacement than conventional mechanisms. The present invention is provided with a rotation control unit 120 that maintains a locked state when an input torque rotating a transfer mechanism 110 is not applied, and releases the locked state when the transfer mechanism 110 rotates. The rotation control unit 120 has an internal gear 124 and lock plates 123 that include outer teeth that can engage with inner teeth of the internal gear 124. When an input torque is not applied, the inner teeth of the internal gear 124 engage with the outer teeth of the lock plates 123, and when the transfer mechanism 110 is rotated, engagement between the inner teeth and the outer teeth is released. Thus, even when torque is applied from the output unit side, engagement between the inner teeth and the outer teeth is not released by the torque.

A forward-speed / reverse-speed changeover mechanism 6, serving as a motive-force connection / disconnection mechanism, is accommodated into a housing member 8 fixed to a casing 1. To the forward-speed / reverse-speed changeover mechanism 6 an input end of a primary shaft 3 is connected. The housing member 8 rotatably supports the primary shaft 3 via a bearing member 11. On an imaginary line intersecting the primary shaft 3 perpendicularly and passing through the bearing member 11, a load-receiving element 1b, 8b is provided between the housing member 8 and the casing 1. The tension of a belt 17 is received by the load-receiving element 1b, 8b. As a result, it is possible to provide a bearing structure of a continuously variable transmission enabling holding the bearing members of the primary and secondary shafts at their regular positions against the tension of the belt and maintaining an optimum belt-alignment, thereby enhancing the durability of the continuously variable transmission.

A coupling mechanism of the present disclosure includes a drive transmission member, a coupling member and a biasing member. The drive transmission member includes a shaft portion and an engagement pin. The coupling member includes a plurality of engagement protrusions and a holding protrusion which is smaller than the engagement protrusion. The holding protrusion makes contact with the engagement pin in a state where the engagement pin makes contact with the pressing surface. A load in a reverse rotation direction is applied from the holding protrusion to the engagement pin when the coupling member is reversely rotated.

The present invention provides a flush toilet capable of suppressing generation of abnormal noise and improving quietness when discharging cleansing water from an inner edge spout together with air accumulated in the inner upper portion of an inner edge water guide. The flush toilet of the present invention comprises: a basin portion (20), a basin-shaped dirt receiving surface (14) and an inner edge portion (18) formed on the upper edge of the dirt receiving surface; an inner edge spout (26) ), spit cleaning water from the inner edge to the basin; the inner edge water guide (24), extends from the rear side area of ​​the basin to the inner edge water spout in the inner edge; and the stirring unit (44), disturbs the inner The cleaning water in the water guide channel (24).

A glass plate structure with a loss coefficient of 1×10 ‑2 above, and the longitudinal wave sound velocity value in the thickness direction is 5.5×10 3 m / s or more.

The invention provides a motor capable of restraining a rotor to radially vibrate, a motor device with the motor and a pointer type display device. In the motor, coils are configured at the respective periphery of two salient poles (61f, 61b) (main poles) arranged in a first angle region (theta1) less than 180 degrees among a plurality of salient poles (61) of a stator iron core. And the salient poles (61c to 61e) in a second angle region (theta2) of 180 degrees among the plurality of salient poles (61) are first assisting poles which are not provided with coils at the periphery. At the opposite side to the two main poles (the salient poles 61f, 61b) side, the second angle region (theta2) takes an extension line of two bisectrixes as a center. The bisectrixes divide the first angle region (theta1) into two equal parts. A first interval (g1) between the main poles (the salient poles 61f, 61b) and a magnet is narrower than a second internal (g2) between the first assisting poles (the salient poles 61c to 61e) and the magnet.

A glass plate structure comprising at least two plates and a liquid layer held between the two plates, wherein at least one of the two plates is a glass plate. In the glass plate structure, the end faces of the two plates are shifted to form a step-like height difference in cross-sectional view, and there is also a seal provided to seal at least the liquid layer in the height difference. Material.

The finned heat exchanger of the present invention, in order to substantially uniformize the wind speed distribution of the heat exchanger and improve heat exchange performance, includes a heat transfer tube (50) through which refrigerant flows and a plurality of first heat transfer tubes inserted into the heat transfer tubes. A stack of fins (21) of a fin collar (23), a plurality of first fin collars are arranged in a plurality of rows along a direction substantially orthogonal to the flow direction of the gas, and second fin collars that are not inserted into the heat transfer tube The fin collars (24) are arranged between the first fin collars arranged in multiple rows.

A door device for an elevator, in which a flexible air-tight member (6) extended in the opening / closing direction (A) of a door body (1b) is attached to the door body (1b) so as to be in pressed contact with a floor-side surface (4b) and, as the door (1) is opened and closed, the air-tight member (6) slides on the floor-side surface (4b) while being in pressed contact with the floor-side surface (4b). A low friction section (6b) is formed on that surface (6a) of the air-tight member (6) with which the floor-side surface (4b) is in pressed contact.

The present invention provides a motor capable of suppressing radial vibration of a rotor, a motor device having the motor, and a pointer display device. In the motor, coils are respectively arranged around two salient poles (61f, 61b) (main poles) located in a first angular range (θ1) smaller than 180° among a plurality of salient poles of the stator core. And, the salient poles (61c to 61e) located in the second angle range (θ2) of 180° among the plurality of salient poles become the first auxiliary poles without coils arranged around them. The side opposite to the side where the two main poles (61f, 61b) are located is centered on the extension of an imaginary bisector that bisects the first angle range (θ1). The structure of the air gap between the main poles (61f, 61b) and the magnet is different from the structure of the air gap between the first auxiliary poles (61c to 61e) and the magnet.

A fuel supply apparatus of an internal combustion engine is provided which can discharge air bubbles or air from within fuel supply paths while increasing pressure within a common rail up to a predetermined pressure level before a start of the internal combustion engine, can reduce a period of time of cranking from when an ignition switch is switched on and which can reduce noise that occurs when the air bubbles or air are being discharged. The fuel supply apparatus is provided with a flow rate control valve that adjusts a flow rate of fuel supplied to the common rail and a pressure control valve that reduces the pressure within the common rail. The fuel supply apparatus is further provided with: a pre-start drive control portion that performs a pre-start drive of an electromagnetic low pressure pump before the start of the internal combustion engine; a flow rate control valve control portion that maintains the flow rate control valve in an open state while the pre-start drive is being performed; and a pressure control valve control portion that maintains the pressure control valve in a closed state and performs a control that opens the pressure control valve at least once for a short time period while the pre-start drive is being performed.

The present invention provides a spring type torque limiter capable of preventing vibration and noise when used by increasing the rigidity of both end parts of a coil spring. Inclination angles are provided on side faces of an outer ring member projecting part (12) and a cover member projecting part (18) on which the both end parts of the coil spring (4) fitted on an outer diameter face of an inner ring (2) abut, respectively, so as to restrict movement of the both end parts to the outer diameter direction. This enhances the rigidity and suppresses vibration and noise of the coil spring (4).

According to one embodiment, a vacuum booster includes a booster shell and a booster piston which divides an interior of the booster shell into a front vacuum chamber and a rear operation chamber. The vacuum booster further includes a valve cylinder in which a control valve controls a communication state of the operation chamber depending on a movement of an input rod. A bearing cylinder is provided on a rear wall of the booster shell. A bearing bush is mounted in the bearing cylinder to support the valve cylinder, and a seal lip is provided at a rear end of the bearing bush integrally therewith to contact elastically closely with the valve cylinder. A grease reservoir is provided in an inner surface of the bearing bush, and an extension grease reservoir is provided in an inner surface of the seal lip.