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1.发明公开公开(公告)号：US20240360778A1
公开(公告)日：2024-10-31
申请号：US18765655
申请日：2024-07-08
Applicant: Pacbrake Company
Inventor： Kody TAYLOR , Peter STEC
CPC classification number: F01L13/06 , F01L1/181 , F01L1/2411 , F01L1/267 , F01L1/46 , F01L13/065
Abstract: An exhaust rocker assembly for operating an exhaust valve of an engine during a compression-release engine braking operation. The exhaust rocker assembly comprises an exhaust rocker arm and a self-contained compression brake control module (CBCM) mounted to the exhaust rocker arm and operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing, an actuation piston disposed outside the casing so as to define an actuation piston cavity, a reset check valve provided between the casing and the actuation piston, and a compression brake actuator disposed in the casing. The actuation piston reciprocates relative to the casing. The compression brake actuator includes a control piston. The control piston engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.
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公开(公告)号：US20230235687A1
公开(公告)日：2023-07-27
申请号：US18130087
申请日：2023-04-03
Applicant: Pacbrake Company
Inventor： Kody TAYLOR , James BALDWIN , Peter STEC
IPC: F01L13/06 , F01L9/10 , F01L9/40 , F01L1/18 , F01L1/22 , F01L1/26 , F01L1/46 , F02D13/04 , F01L1/24
CPC classification number: F01L13/065 , F01L9/10 , F01L9/40 , F01L1/18 , F01L1/22 , F01L1/26 , F01L1/462 , F02D13/04 , F01L1/181 , F01L1/267 , F01L13/06 , F01L1/2411 , F01L2001/467 , F01L2001/2444
Abstract: A compression-release engine brake system operating an exhaust valve of an engine during a compression-release engine braking operation. The compression-release brake system comprises an exhaust rocker arm and a brake reset device disposed in a reset bore formed in the exhaust rocker arm. The brake reset device comprises a reset check valve, a slider-piston slidably disposed in the reset bore and an external slider bias spring biasing the piston foot away from the brake reset device. The external slider bias spring is disposed outside the reset bore and around the piston-slider. The brake reset device permits pressurized hydraulic fluid to flow from a supply conduit to a reset conduit to supply a brake actuation piston when the reset check valve is open. The actuation piston extends and engages the exhaust valve toward the end of a compression stroke of the internal combustion engine, and the brake reset device resets.
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公开(公告)号：US20220307392A1
公开(公告)日：2022-09-29
申请号：US17703361
申请日：2022-03-24
Applicant: Pacbrake Company
Inventor： Kody TAYLOR , James BALDWIN , Peter STEC
Abstract: A compression-release engine brake system operating an exhaust valve of an engine during a compression-release engine braking operation. The compression-release brake system comprises an exhaust rocker arm and a brake reset device disposed in a reset bore formed in the exhaust rocker arm. The brake reset device comprises a reset check valve, a slider-piston slidably disposed in the reset bore and an external slider bias spring biasing the piston foot away from the brake reset device. The external slider bias spring is disposed outside the reset bore and around the piston-slider. The brake reset device permits pressurized hydraulic fluid to flow from a supply conduit to a reset conduit to supply a brake actuation piston when the reset check valve is open. The actuation piston extends and engages the exhaust valve toward the end of a compression stroke of the internal combustion engine, and the brake reset device resets.
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Patent Agency Ranking
公开(公告)号：US20210156319A1
公开(公告)日：2021-05-27
申请号：US16952483
申请日：2020-11-19
Applicant: Pacbrake Company
Inventor： Peter STEC , Kody TAYLOR , Devin BATCHELLER
Abstract: A compression-release brake system for operating an exhaust valve of an engine during an engine braking operation. The compression-release brake system comprises a self-contained compression brake control module (CBCM) operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing defining an actuator cavity, a actuation piston disposed outside the casing so as to define an actuation piston cavity between the casing and the actuation piston, and a check valve provided between the actuation piston cavity and a compression brake actuator disposed in the actuator cavity. The actuation piston reciprocates relative to the casing. The compression brake actuator includes an actuator element and a biasing spring. The actuator element selectively engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.
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公开(公告)号：US20220034266A1
公开(公告)日：2022-02-03
申请号：US17504810
申请日：2021-10-19
Applicant: Pacbrake Company
Inventor： Peter STEC , Kody TAYLOR , Devin BATCHELLER
Abstract: A compression-release brake system for operating an exhaust valve of an engine during an engine braking operation. The compression-release brake system comprises a self-contained compression brake control module (CBCM) operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing defining an actuator cavity, a actuation piston disposed outside the casing so as to define an actuation piston cavity between the casing and the actuation piston, and a check valve provided between the actuation piston cavity and a compression brake actuator disposed in the actuator cavity. The actuation piston reciprocates relative to the casing. The compression brake actuator includes an actuator element and a biasing spring. The actuator element selectively engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.
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6.发明公开公开(公告)号：US20230407773A1
公开(公告)日：2023-12-21
申请号：US18211890
申请日：2023-06-20
Applicant: Pacbrake Company
Inventor： Kody TAYLOR , Peter STEC
CPC classification number: F01L13/06 , F01L1/26 , F01L1/2416 , F01L1/181
Abstract: An exhaust rocker assembly for operating an exhaust valve of an engine during a compression-release engine braking operation. The exhaust rocker assembly comprises an exhaust rocker arm and a self-contained compression brake control module (CBCM) mounted to the exhaust rocker arm and operatively coupled to the exhaust valve for controlling a lift and a phase angle thereof. The CBCM includes a casing, an actuation piston disposed outside the casing so as to define an actuation piston cavity, a reset check valve provided between the casing and the actuation piston, and a compression brake actuator disposed in the casing. The actuation piston reciprocates relative to the casing. The compression brake actuator includes a control piston. The control piston engages the check valve when deactivated so as to unlock the actuation piston cavity and disengages from the check valve when activated so as to lock the actuation piston cavity.
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7.发明申请公开(公告)号：US20220251979A1
公开(公告)日：2022-08-11
申请号：US17667174
申请日：2022-02-08
Applicant: Pacbrake Company
Inventor： Devin BATCHELLER , Kody TAYLOR , Vincent Meneely
Abstract: A compression-release engine brake system for effectuating a compression-release engine braking operation of an internal combustion engine. The compression-release system includes a lost motion exhaust rocker assembly including an exhaust rocker arm, an actuation device including an actuation piston and an actuation cavity, and a reset device including a reset check valve and a slider-piston. Hydraulic fluid in the exhaust rocker arm is locked in the actuation cavity when the reset check valve is in the closed position, and flows through the reset check valve when the reset check valve is in the open position. The slider-piston is associated with the reset check valve so that in an extended position of the slider-piston the reset check valve is free to move toward the closed position, and in a retracted position of the slider-piston the reset check valve is moved to the open position thereof by the slider-piston.
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8.发明申请公开(公告)号：US20190309664A1
公开(公告)日：2019-10-10
申请号：US16374867
申请日：2019-04-04
Applicant: Pacbrake Company
Inventor： Devin BATCHELLER , Kody TAYLOR , Vincent Meneely
Abstract: A compression-release engine brake system for effectuating a compression-release engine braking operation of an internal combustion engine. The compression-release system includes a lost motion exhaust rocker assembly including an exhaust rocker arm, an actuation device including an actuation piston and an actuation cavity, and a reset device including a reset check valve and a slider-piston. Hydraulic fluid in the exhaust rocker arm is locked in the actuation cavity when the reset check valve is in the closed position, and flows through the reset check valve when the reset check valve is in the open position. The slider-piston is associated with the reset check valve so that in an extended position of the slider-piston the reset check valve is free to move toward the closed position, and in a retracted position of the slider-piston the reset check valve is moved to the open position thereof by the slider-piston.
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