Damper having torque limiter function
AssigneeAisin Aw Industries Co., Ltd.
InventorsYoshito Takeshita, Fumiaki Doseki, Masahiro Yamaguchi
Life of this patent
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Abstract
A damper includes an outer cover having a front cover and a rear cover. The covers are joined to form a lubricant oil accommodation chamber for accommodating liquid. A damper device, a limiter mechanism, a first plate including a first collar portion located toward the front of the limiter mechanism, and a second plate including a second collar portion located toward the rear of the limiter mechanism are arranged in the outer cover. The limiter mechanism includes a first limiter plate, which is an input side on the torque transmission path, a second limiter plate, which is an output side on the torque transmission path, and a limiter disc spring, which presses the limiter plates.
Claims8
A damper incorporated in a power transmission mechanism for a hybrid vehicle, the damper comprising:
- a housing including a first cover and a second cover joined with each other, in which the housing is coupled to a drive plate and filled with lubricant oil;
- and
- a damper device arranged in the housing, the damper device including:
- a central disc;
- a first friction member arranged at a peripheral portion of the central disc;
- a limiter plate arranged to face toward the first friction member;
- a first biasing member which pushes the limiter plate so that the central disc is arranged between the limiter plate and the housing;
- a hub having a shaft hole arranged at a center of the damper device and fitted to an output member;
- a first plate and a second plate arranged at opposite sides of the central disc and are immovably fixed to the central disc, such that the first plate, the second plate and the central disc form a torque input side portion;
- an output side disc, which is a torque output side portion, fixed to the hub and arranged between the first plate and the second plate;
- a plurality of damper springs accommodated in a spring accommodation hole formed between the first plate and the second plate, in which the damper springs elastically couple the torque input side portion and the output side disc;
- a second friction member arranged between the output side disc and the torque input side portion;
- and
- a second biasing member which biases the second friction member, wherein the second friction member suppresses relative rotation of the torque input side portion and the output side disc that is greater than or equal to a certain level with slip friction generated when the damper springs deform.
A damper incorporated in a power transmission mechanism for a hybrid vehicle, the damper comprising:
- a housing including a first cover and a second cover joined with each other to define a space filled with lubricant oil, wherein the housing is coupled to a drive plate;
- and
- a damper device arranged in the housing, the damper device including:
- a central disc;
- a first friction member arranged at a peripheral portion of the central disc;
- a limiter plate arranged to face toward the first friction member;
- a first biasing member which pushes the limiter plate so that the central disc is arranged between the limiter plate and the housing;
- a hub having a shaft hole arranged at a center of the damper device and fitted to an output member;
- a first plate and a second plate, each having an outer portion, arranged on opposite sides of the central disc and wherein the central disc is immovably fixed to said outer portions, and wherein the first plate, the second plate and the central disc form a torque input side portion;
- an output side disc, which is a torque output side portion, fixed to the hub and arranged between the first plate and the second plate;
- a plurality of damper springs accommodated in a spring accommodation hole formed between the first plate and the second plate, in which the damper springs elastically couple the torque input side portion and the output side disc;
- a second friction member arranged between the output side disc and the torque input side portion;
- and
- a second biasing member which biases the second friction member, wherein the second friction member suppresses relative rotation of the torque input side portion and the output side disc that is greater than or equal to a certain level with slip friction generated when the damper springs deform.
Dependencies are inferred from the claim text.