Toyoda Gosei Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Isao Ozawa

Masaaki Takizawa

Masato Ueno

Yutaka Nagai

Yoshihiro Menjo

Yoshio Ohta

Kiyoteru Ijichi

Yukio Aono

Noboru Ito

A damper device including first and second support members, one of which is fixed to a support element and the other of which is fixed to a suspended element, an elastic block made of a deformable, elastic material for elastically coupling the two support members and a sealed space formed therein filled with a liquid. One partition member has its periphery fixed to the first support member and divides the sealed space into two chambers. The partition member has therein a member movable along a short distance. Fluid passages are formed in a wall portion of the first support member so as to communicate between the two chambers and to impart flow resistance to the liquid flowing therethrough. The partition member can be suspended to the first support member by an elastic sheet and be movable along the axial direction of the first support member. A solenoid is mounted on the inner wall of the first support member. When the solenoid is energized, the partition member can be fixed to the first support member. When the damper device is used in an engine suspension of a vehicle with vibrations of high frequency and small magnitude of vibration, relative movement of the first and second support members is damped by displacement of the movable member of the partition member. With low-frequency vibrations, vibrations having a relatively large magnitude are damped by the flow resistance of the liquid flowing through the fluid passages. When the engine is in the idling mode, the solenoid is deenergized, and the partition member is kept movable.

Fluid-filled damper device

An elastically damping device for the suspension of an engine of a vehicle, by which the engine vibrations are prevented from being transmitted to the body of the vehicle, is disclosed. The damping device is provided with a first fluid chamber and a second fluid chamber, each of which is defined by an elastically deformable wall. The fluid chambers are separated from each other by means of a partition plate, of which at least one portion is formed into a movable plate being movable in such a direction as to lower the increased inner pressure of the fluid chambers, and which has a restricted passageway for communicating the fluid chambers. The damping device of the present invention further comprises two stopper portions for stopping the movement of the movable plate and an electromagnetic coil for operating one or two stopper portions so as to control the movable distance of the movable plate in accordance with the driving condition of the vehicle. The electromagnetic coil operates the stopper portions to make the movable distance of the movable plate small at both of an engine starting time and a vehicle running time and to make the movable distance of the movable plate large at an engine idling time.

Elastically damping device for suspension of engine

An elastically damping device for the suspension of an engine comprises a conical first fluid chamber which is formed in the bottom portion of a frustoconical elastically deformable block, and a second fluid chamber which is formed on the upper surface of the block by fixing the open end of an elastically deformable thin sheet thereto. The top portion of the first fluid chamber and the second fluid chamber are interconnected to each other by way of an open passageway which is formed in the block. The first fluid chamber, the second fluid chamber and the open passageway are filled with a liquid. This device is supported on a body of a vehicle by a first supporting plate which is connected to the under surface of the block and the engine is mounted on the block by a second supporting plate which is connected to the upper surface of the block.

Elastically damping device for the suspension of an engine

In a molding composed of a molding body comprising a front surface, a bottom, a side portion and a hollow portion, and of an adhesive layer constituted at the bottom, the thin molding side portion extends along the front surface, and the bottom is provided with a projection which projects on one side or both sides of the bottom separate from the front surface and the molding side portion. When the front surface is pushed, the pushing force applied to the front surface produces the fulcrum of the bending moment at the molding side portion and the plane pressure from the fulcrum to the front surface in the direction towards the inside of the bottom, and at the same time the contact pressure applied to the point of action of force is distributed in the plane pressure distribution towards the front surface which attenuates from the peak value below the point of action of force to both sides gradually.

Growing community of inventors

Inazawa, Japan

Isao Ozawa