公开(公告)号：US20210372321A1

公开(公告)日：2021-12-02

申请号：US16770430

申请日：2018-12-21

Applicant: Penn-Troy Manufacturing Inc.

Inventor： Michael Kafka ,  Merle Eiffert

IPC: F02B77/10 ,  F01M13/04 ,  F16K17/04

Abstract: An explosion relief valve for a crankcase of an engine includes a carrier plate, a cap, and an annular flame arrestor. The carrier plate includes a valve plate that has a sinuous shape for redirecting flame back into the engine The flame arrestor includes a plurality of layers of smooth metal sheets, with each layer having a pattern of apertures that is different in size and spacing than the pattern of apertures of its adjacent layer. The apertures of each layer are partially, and only partially, aligned with the perforations of its adjacent layers. The layers are laid flush against each other to minimize or eliminate air space between the layers, leaving only the air channels existing between the apertures of the metal sheet layers as passageways for exhaust gases to be released from the valve.

公开(公告)号：US10151239B1

公开(公告)日：2018-12-11

申请号：US15832343

申请日：2017-12-05

Applicant: Penn-Troy Manufacturing Inc.

Inventor： Michael Kafka ,  Merle Eiffert

IPC: F02B77/10 ,  F01M13/04 ,  F16K17/04 ,  F02M35/10

Abstract: An explosion relief valve for a crankcase of an engine includes a carrier plate, a cap, and an annular flame arrestor. The carrier plate includes a valve plate that has a sinuous shape for redirecting flame back into the engine. The flame arrestor includes a plurality of layers of smooth metal sheets, with each layer having a pattern of apertures that is different in size and spacing than the pattern of apertures of its adjacent layer. The apertures of each layer are partially, and only partially, aligned with the perforations of its adjacent layers. The layers are laid flush against each other to minimize or eliminate air space between the layers, leaving only the air channels existing between the apertures of the metal sheet layers as passageways for exhaust gases to be released from the valve.

公开(公告)号：US20230018625A1

公开(公告)日：2023-01-19

申请号：US17950678

申请日：2022-09-22

Applicant: Penn-Troy Manufacturing Inc.

Inventor： Michael Kafka ,  Merle Eiffert

IPC: F02B77/10 ,  F01M13/04 ,  F16K17/04 ,  F02M35/10

Abstract: An explosion relief valve for a crankcase of an engine includes a carrier plate, a cap, and an annular flame arrestor. The carrier plate includes a valve plate that has a sinuous shape for redirecting flame back into the engine. The flame arrestor includes a plurality of layers of smooth metal sheets, with each layer having a pattern of apertures that is different in size and spacing than the pattern of apertures of its adjacent layer. The apertures of each layer are partially, and only partially, aligned with the perforations of its adjacent layers. The layers are laid flush against each other to minimize or eliminate air space between the layers, leaving only the air channels existing between the apertures of the metal sheet layers as passageways for exhaust gases to be released from the valve.

公开(公告)号：US11466616B2

公开(公告)日：2022-10-11

申请号：US16770430

申请日：2018-12-21

Applicant: Penn-Troy Manufacturing Inc.

Inventor： Michael Kafka ,  Merle Eiffert

IPC: F02B77/10 ,  F01M13/04 ,  F16K17/04 ,  F02M35/10

Abstract: An explosion relief valve for a crankcase of an engine includes a carrier plate, a cap, and an annular flame arrestor. The carrier plate includes a valve plate that has a sinuous shape for redirecting flame back into the engine. The flame arrestor includes a plurality of layers of smooth metal sheets, with each layer having a pattern of apertures that is different in size and spacing than the pattern of apertures of its adjacent layer. The apertures of each layer are partially, and only partially, aligned with the perforations of its adjacent layers. The layers are laid flush against each other to minimize or eliminate air space between the layers, leaving only the air channels existing between the apertures of the metal sheet layers as passageways for exhaust gases to be released from the valve.

公开(公告)号：US11879382B2

公开(公告)日：2024-01-23

申请号：US17950678

申请日：2022-09-22

Applicant: Penn-Troy Manufacturing Inc.

Inventor： Michael Kafka ,  Merle Eiffert

IPC: F02B77/10 ,  F02M35/10 ,  F01M13/04 ,  F16K17/04

CPC classification number: F02B77/10 ,  F01M13/0405 ,  F16K17/0413 ,  F02M35/10262

Abstract: An explosion relief valve for a crankcase of an engine includes a carrier plate, a cap, and an annular flame arrestor. The carrier plate includes a valve plate that has a sinuous shape for redirecting flame back into the engine. The flame arrestor includes a plurality of layers of smooth metal sheets, with each layer having a pattern of apertures that is different in size and spacing than the pattern of apertures of its adjacent layer. The apertures of each layer are partially, and only partially, aligned with the perforations of its adjacent layers. The layers are laid flush against each other to minimize or eliminate air space between the layers, leaving only the air channels existing between the apertures of the metal sheet layers as passageways for exhaust gases to be released from the valve.

公开(公告)号：US20230146258A1

公开(公告)日：2023-05-11

申请号：US17521033

申请日：2021-11-08

Applicant: Penn-Troy Manufacturing Inc.

Inventor： Michael Kafka ,  Merle Eiffert

IPC: E02D29/14 ,  F16K27/12

CPC classification number: E02D29/149 ,  F16K27/12

Abstract: The sealable and lockable valve box lid assembly disclosed herein provides a water-tight seal between the valve box and ground surface, is capable of supporting heavy downward loads created by vehicle traffic, and has a low vertical profile that is suitable for shallow valve box installations.