WO2023187808 - AN INTERNAL COMBUSTION ENGINE
National phase entry is expected:
Publication Number
WO/2023/187808
Publication Date
05.10.2023
International Application No.
PCT/IN2023/050053
International Filing Date
18.01.2023
Title **
[English]
AN INTERNAL COMBUSTION ENGINE
[French]
MOTEUR À COMBUSTION INTERNE
Applicants **
TVS MOTOR COMPANY LIMITED
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
Inventors
NAVEEN NATARAJAN, Krishnakumar
TVS Motor Company Limited,
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
SUNDARAKUMAR, Harivaishnavi
TVS Motor Company Limited,
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
BALAJI, Vaidyanathan
TVS Motor Company Limited,
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
PALANI, Shanmugasundaram
TVS Motor Company Limited,
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
RAGHAVENDRA, Prasad
TVS Motor Company Limited,
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
DATTA, Rajaram Sagare
TVS Motor Company Limited,
“Chaitanya”,
No.12 Khader Nawaz Khan Road, Nungambakkam
Chennai 600 006, IN
Priority Data
202241019409
31.03.2022
IN
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
| Pages of Specification | * |
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International Searching Authority |
IP India
* |
| Applicant's Legal Status |
Legal Entity
* |
| * | |
| * | |
| * | |
| * | |
| Entry into National Phase under |
Chapter I
* |
| Translation |
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Recalculate
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 951 | |
| EPO | Filing, Examination | 6425 | |
| Japan | Filing | 593 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2635 |
Total: 11179 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
The present subject matter provides a method and system (100) for cranking an engine (102). The engine drive system (106) comprising an electrical machine (103). The engine (102) comprising a crankshaft (104) and a speed detection sensor (105). The electrical machine (103) receives, from a speed detection sensor (105), a signal indicating an operating speed of a crankshaft (104) of the engine (102). The electrical machine (103) controls the operating speed of a crankshaft (104), based on an operation of a decompression valve, to ensure opening of the decompression valve during cranking of the engine (102). By keeping decompression valve open during cranking of the engine (102) reduces pressure inside a cylinder chamber of the engine (102) which reduces load on electrical machine while starting the engine (102).[French]
La présente invention concerne un procédé et un système (100) de démarrage d'un moteur (102). Le système d'entraînement de moteur (106) comprend une machine électrique (103). Le moteur (102) comprend un vilebrequin (104) et un capteur de détection de vitesse (105). La machine électrique (103) reçoit, en provenance d'un capteur de détection de vitesse (105), un signal indiquant une vitesse de fonctionnement d'un vilebrequin (104) du moteur (102). La machine électrique (103) commande la vitesse de fonctionnement d'un vilebrequin (104), sur la base du fonctionnement d'une soupape de décompression, pour assurer l'ouverture de la soupape de décompression pendant le démarrage du moteur (102). Le fait de maintenir la soupape de décompression ouverte pendant le démarrage du moteur (102) réduit la pression à l'intérieur d'une chambre de cylindre du moteur (102), ce qui réduit la charge sur la machine électrique pendant le démarrage du moteur (102).