Inertial brake unit for air clutch
First Claim
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1. An inertial brake unit for an air clutch comprising:
- (a) a clutch output shaft having an axial inner side and an axial outer side;
(b) a pneumatic actuator;
(c) a cylindrical passage disposed peripherally about said axial outer side of said clutch output shaft and in communication with said pneumatic actuator;
(d) a rotary joint disposed peripherally about said clutch output shaft;
(e) an interconnecting passage concentrically disposed at said axial outer side of said clutch shaft and is in communication with said cylindrical passage and with an external air pressure control mechanism;
said external air pressure control mechanism includes an air clutch control valve and an inertial brake control valve;
said inertial brake control valve including a valve body, a spring body and a pneumatic feedback mechanism;
(f) an inertial brake chamber formed concentrically of said inner side of said clutch output shaft, said brake chamber comprising;
(i) a brake disc having an inner peripheral end and an outer peripheral end, said inner peripheral end being connected to said axial inner side of said clutch output shaft;
(ii) a brake cylinder;
(iii) a piston disposed within said brake cylinder and slidingly connected thereto such that said piston is capable of movement in a direction parallel to the length of said clutch output shaft;
(iv) a pressure chamber between said brake cylinder and said piston; and
(v) a leaf spring having a first end and a second end, said first end being connected to said piston and said second end being connected to said brake cylinder such that said spring resiliently urges said piston in a direction away from said brake disc.
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Abstract
An inertial brake unit for an air clutch includes a concentric inertial brake chamber in a rotary joint for the air clutch, a disc brake, a piston and a pressure chamber. The brake unit also includes a pneumatic pressure control mechanism so that the piston can brake the disc when pressurized air is supplied to said pressure chamber at the time of disengaging the clutch.
30 Citations
6 Claims
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1. An inertial brake unit for an air clutch comprising:
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(a) a clutch output shaft having an axial inner side and an axial outer side; (b) a pneumatic actuator; (c) a cylindrical passage disposed peripherally about said axial outer side of said clutch output shaft and in communication with said pneumatic actuator; (d) a rotary joint disposed peripherally about said clutch output shaft; (e) an interconnecting passage concentrically disposed at said axial outer side of said clutch shaft and is in communication with said cylindrical passage and with an external air pressure control mechanism;
said external air pressure control mechanism includes an air clutch control valve and an inertial brake control valve;
said inertial brake control valve including a valve body, a spring body and a pneumatic feedback mechanism;(f) an inertial brake chamber formed concentrically of said inner side of said clutch output shaft, said brake chamber comprising; (i) a brake disc having an inner peripheral end and an outer peripheral end, said inner peripheral end being connected to said axial inner side of said clutch output shaft; (ii) a brake cylinder; (iii) a piston disposed within said brake cylinder and slidingly connected thereto such that said piston is capable of movement in a direction parallel to the length of said clutch output shaft; (iv) a pressure chamber between said brake cylinder and said piston; and (v) a leaf spring having a first end and a second end, said first end being connected to said piston and said second end being connected to said brake cylinder such that said spring resiliently urges said piston in a direction away from said brake disc. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification