Pressure-measuring plug for a combustion engine

• Main Authors: ZWOLLO CRIS RUIS, GROENHUIJZEN SERGE, BORGERS MARC
• Format: Patent
• Language: Chinese; English
• Published: 21.05.2014
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; IGNITION, OTHER THAN COMPRESSION IGNITION, FORINTERNAL-COMBUSTION ENGINES; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; MECHANICAL ENGINEERING; PHYSICS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TESTING; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WEAPONS

Disclosed is a pressure-measuring plug (100) for a combustion engine. The pressure-measuring plug comprises a plug body (102) and a ring-shaped sensing structure (104). The plug body comprises an external thread (102A) for mounting the plug body into a cylinder head of the combustion engine. The ring-shaped sensing structure comprises an outer section (104A) and an inner core (104B). A proximal end of the plug body is attached to the outer section. The inner core comprises a through hole (104C) for receiving a rod-shaped element (106). The ring-shaped sensing structure allows the inner core (104B) to move relatively to the outer section (104A) along a cylinder axis (105) of the ring-shaped sensing structure. The inner core (104B) further comprises an internal thread (104B1) for mounting in the through hole (104C) a rod-shaped element (106) with an external thread.